Long-Term Debt - Additional Information (Detail)
$ / shares in Units, $ in Millions |
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1 Months Ended |
3 Months Ended |
6 Months Ended |
12 Months Ended |
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May 01, 2029 |
Apr. 12, 2024
USD ($)
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Jun. 30, 2025
USD ($)
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Feb. 28, 2025
USD ($)
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Apr. 30, 2024
USD ($)
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May 31, 2021
USD ($)
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May 31, 2020
USD ($)
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Jun. 30, 2026
USD ($)
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Jun. 30, 2025
USD ($)
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Jun. 30, 2026
USD ($)
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Jun. 30, 2025
USD ($)
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Jun. 30, 2024
USD ($)
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Dec. 31, 2022
USD ($)
Days
$ / shares
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Apr. 30, 2026
USD ($)
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Dec. 31, 2025
USD ($)
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Sep. 30, 2025
USD ($)
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Jun. 30, 2021
USD ($)
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Jun. 30, 2020
USD ($)
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| Debt Instrument [Line Items] |
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| Outstanding principal amount |
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$ 2,039.6
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$ 2,039.6
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| Gain on extinguishment of debt |
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(94.6)
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(94.6)
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$ 0.0
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| Interest expense |
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40.0
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$ 55.4
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89.5
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110.0
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| 4.250% Convertible Senior Notes Due 2028 [Member] |
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| Debt Instrument [Line Items] |
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| Outstanding principal amount |
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277.5
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277.5
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$ 277.5
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$ 277.5
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| Deferred financing costs |
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8.5
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| Aggregate principal amount of senior notes issued |
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250.0
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| Convertible debt underwriters over allotment option fully exercised |
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37.5
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| Interest expense |
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3.4
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3.3
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6.7
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6.6
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| Amortization of deferred financing costs |
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$ 0.4
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0.4
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$ 0.8
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0.8
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| Additional principal amount of convertible notes |
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$ 27.5
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| Convertible notes, interest rate |
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4.25%
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4.25%
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4.25%
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| Line of credit maturity |
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Jun. 15, 2028
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Jun. 15, 2028
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| Principal amount of convertible notes |
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$ 1,000.0
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| Convertible notes conversion rate |
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58.8998
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| Convertible notes conversion price | $ / shares |
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$ 16.98
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| Effective interest rate on convertible notes |
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4.90%
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| Fair value of liability to convertible notes |
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$ 320.3
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$ 320.3
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301.7
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| Convertible notes, conversion feature |
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Holders of the 2028 Convertible Notes may convert their notes at their option under the following circumstances: (i) during any calendar quarter commencing after the calendar quarter ending March 31, 2023, if the last reported sale price of the Company’s common shares for at least 20 trading days (whether or not consecutive) in a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter exceeds 130% of the conversion price for the 2028 Convertible Notes on each applicable trading day; (ii) during the five business-day period immediately after any five consecutive trading day period, or the measurement period, in which the trading price per $1,000 principal amount of 2028 Convertible Notes for each trading day of that measurement period was less than 98% of the product of the last reported sale price of the Company’s common shares and the conversion rate for the 2028 Convertible Notes for each such day; (iii) if the Company calls the 2028 Convertible Notes for redemption; or (iv) upon the occurrence of specified corporate events. On and after March 15, 2028, holders may convert their 2028 Convertible Notes at any time, regardless of the foregoing circumstances.
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| Convertible notes, number of trading days of threshold limit (whether or not consecutive) | Days |
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20
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| Convertible notes, number of trading days of threshold limit in consecutive days | Days |
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30
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| Minimum percentage of common share price over conversion price for conversion |
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130.00%
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| Minimum percentage of the product of common share price and conversion rate for convertible notes |
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98.00%
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| Unamortized debt discount and debt issuance costs |
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3.3
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$ 3.3
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4.1
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| Convertible senior notes, carrying value |
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274.2
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274.2
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273.4
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| 7.875% Senior Notes Due 2025 [Member] |
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| Debt Instrument [Line Items] |
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| Deferred financing costs |
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$ 7.9
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| Aggregate principal amount of senior notes issued |
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$ 50.0
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$ 65.0
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$ 300.0
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$ 600.0
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50.0
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50.0
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$ 147.3
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| Debt instrument , Purchase Price |
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51.3
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67.3
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309.1
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| Accrued interest |
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$ 1.3
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$ 2.3
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3.2
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1.3
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1.3
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$ 5.8
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| Reduction to long term debt |
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298.8
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| Gain on extinguishment of debt |
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$ 7.1
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$ 0.9
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| Interest expense |
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4.1
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8.8
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| Amortization of deferred financing costs |
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0.2
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0.5
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| Convertible notes, interest rate |
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7.875%
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| Line of credit maturity |
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Sep. 01, 2025
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| 7.875% Senior Notes Due 2025 [Member] | Debt Issuance Costs [Member] |
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| Debt Instrument [Line Items] |
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| Deferred financing costs |
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$ 7.9
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| 4.875% Senior Notes Due 2029 [Member] |
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| Debt Instrument [Line Items] |
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| Outstanding principal amount |
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600.0
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$ 600.0
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600.0
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| Redemption prices, expressed as percentages of principal amount |
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100.00%
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| Deferred financing costs |
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3.2
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$ 3.2
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3.7
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$ 7.7
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| Aggregate principal amount of senior notes issued |
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$ 600.0
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| Interest expense |
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7.5
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7.6
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15.1
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15.1
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| Amortization of deferred financing costs |
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$ 0.3
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$ 0.3
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$ 0.5
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$ 0.5
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| Convertible notes, interest rate |
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4.875%
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4.875%
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4.875%
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| Line of credit maturity |
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Jun. 01, 2029
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Jun. 01, 2029
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| Carrying amount |
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$ 596.8
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$ 596.8
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596.3
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| Fair value of notes |
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562.9
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562.9
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565.6
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| 4.875% Senior Notes Due 2029 [Member] | Debt Issuance Costs [Member] |
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| Debt Instrument [Line Items] |
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| Deferred financing costs |
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$ 7.7
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| 7.750% Senior Secured Notes due 2033 [Member] |
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| Debt Instrument [Line Items] |
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| Outstanding principal amount |
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800.0
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800.0
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| Deferred financing costs |
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15.0
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15.0
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| Aggregate principal amount of senior notes issued |
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$ 800.0
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| Interest expense |
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10.9
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10.9
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| Amortization of deferred financing costs |
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$ 0.3
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$ 0.3
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| Convertible notes, interest rate |
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7.75%
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7.75%
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7.75%
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| Line of credit maturity |
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Apr. 15, 2033
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| Unamortized debt discount and debt issuance costs |
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$ 14.3
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$ 14.3
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| Senior secured notes, carrying amount |
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785.7
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785.7
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$ 0.0
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| 7.750% Senior Secured Notes due 2033 [Member] | Forecast [Member] |
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| Debt Instrument [Line Items] |
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| Redemption prices, expressed as percentages of principal amount |
100.00%
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| Senior notes, redemption price percentage with equity offerings |
107.75%
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| 7.750% Senior Secured Notes due 2033 [Member] | Level 2 [Member] |
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| Debt Instrument [Line Items] |
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| Fair value of notes |
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$ 816.2
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$ 816.2
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| 7.750% Senior Secured Notes due 2033 [Member] | Maximum [Member] | Forecast [Member] |
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| Debt Instrument [Line Items] |
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| Percentage of aggregate principal amount of senior notes being redeemed |
40.00%
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| 2024 Revolving Credit Facility [Member] | Minimum [Member] |
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| Debt Instrument [Line Items] |
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| Interest rate spread on variable rate |
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5.50%
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| Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |
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0.35%
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| 2024 Revolving Credit Facility [Member] | Maximum [Member] |
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| Debt Instrument [Line Items] |
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| Interest rate spread on variable rate |
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6.50%
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| Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |
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0.45%
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| 2024 Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member] |
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| Debt Instrument [Line Items] |
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| Interest rate spread on variable rate |
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4.50%
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| 2024 Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member] |
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| Debt Instrument [Line Items] |
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| Interest rate spread on variable rate |
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5.50%
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| 2024 Revolving Credit Facility [Member] |
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| Debt Instrument [Line Items] |
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| Aggregate principal amount of senior notes issued |
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$ 400.0
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| 2024 Term Loan B [Member] | Base Rate [Member] |
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| Debt Instrument [Line Items] |
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| Interest rate spread on variable rate |
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5.75%
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| 2024 Term Loan B [Member] | SOFR |
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| Debt Instrument [Line Items] |
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| Interest rate spread on variable rate |
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6.75%
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| 2024 Term Loan B [Member] | 2024 Revolving Credit Facility [Member] |
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| Debt Instrument [Line Items] |
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| Percentage of aggregate principal amount of senior notes being redeemed |
|
5.00%
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| Separately 2025 Senior Notes [Member] |
|
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| Debt Instrument [Line Items] |
|
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| Aggregate principal amount of senior notes issued |
|
|
|
|
$ 37.7
|
|
|
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|
| Debt instrument , Purchase Price |
|
|
|
|
38.9
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| Accrued interest |
|
|
|
|
0.5
|
|
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| Senior notes carrying value |
|
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|
$ 37.5
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