Long-Term Debt - Additional Information (Detail)

v3.22.0.1

Long-Term Debt - Additional Information (Detail)							1 Months Ended						3 Months Ended				6 Months Ended	9 Months Ended	12 Months Ended
	Jul. 30, 2021 USD ($)	Feb. 10, 2021	Mar. 19, 2020 USD ($)	Dec. 12, 2019 USD ($)	Aug. 15, 2019 USD ($)	Aug. 16, 2018 USD ($)	Jul. 31, 2021	May 31, 2021 USD ($)	May 31, 2020 USD ($)	Aug. 31, 2018 USD ($)	Mar. 31, 2018 USD ($) $ / shares	Feb. 28, 2014 USD ($) $ / shares	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2014 USD ($)	Jun. 30, 2021 USD ($)	Sep. 30, 2021	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($) d	Dec. 31, 2019 USD ($)	Mar. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Sep. 30, 2018 USD ($)
Debt Instrument [Line Items]
Outstanding principal amount																			$ 2,845,800,000
Loss on extinguishment of debt																			24,600,000	$ 0	$ 0
Borrowings under the senior secured credit facility																			1,088,600,000	976,500,000
Interest expense																			153,100,000	133,000,000.0	153,000,000.0
Amortization of deferred financing costs																			6,000,000.0	4,600,000	5,300,000
Paid-in-capital in excess of par value																			318,100,000	342,300,000
Long-term debt																			2,762,600,000	2,428,400,000
Convertible notes paid																			0	0	675,000,000.0
Letters of credit issued but undrawn																			20,700,000
Capped call transactions [Member]
Debt Instrument [Line Items]
Capped call transactions with financial institutions												$ 123,800,000
Prepaid forward share repurchase transactions [Member]
Debt Instrument [Line Items]
Forward share repurchase transactions amount												685,800,000				$ 685,800,000
Convertible Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Outstanding principal amount												1,150,000,000
Debt Instrument, Face Amount												1,000,000,000
Deferred financing costs																26,600,000
Aggregate principal amount of convertible senior notes issued												1,000,000,000
Interest expense																					27,000,000.0
Non-cash interest expense																					17,000,000.0
Amortization of deferred financing costs																					1,700,000
Additional principal amount of convertible notes												$ 150,000,000.0
Convertible notes, interest rate												2.00%
Convertible notes maturity												Aug. 15, 2019
Principal amount of convertible notes												$ 1,000
Convertible notes conversion rate												23.1816
Convertible notes conversion price | $ / shares												$ 43.14
Paid-in-capital in excess of par value												$ 219,100,000				5,100,000
Long-term debt												$ 930,900,000
Effective interest rate on convertible notes												6.20%
Convertible notes paid					$ 675,000,000.0						$ 583,500,000
Accrued interest					$ 6,700,000						1,000,000.0
Convertible Senior Notes Due 2019 [Member] | Repurchase of 2019 Convertible Notes [Member]
Debt Instrument [Line Items]
Loss on extinguishment of debt											13,100,000
Repurchase of convertible notes											475,000,000.0
Fair value of liability to convertible notes											459,400,000
Fair value of equity component to convertible notes											123,000,000.0
Reduction to long-term debt representing liability component of convertible notes											446,400,000
Reduction to additional paid-in capital representing equity component											123,000,000.0
Convertible Senior Notes Due 2019 [Member] | Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs																$ 21,500,000
2.625% Convertible Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Outstanding principal amount																			550,000,000.0	550,000,000.0
Debt Instrument, Face Amount											550,000,000.0
Deferred financing costs											12,900,000
Aggregate principal amount of convertible senior notes issued											$ 550,000,000.0
Interest expense																			39,800,000	37,700,000	35,800,000
Non-cash interest expense																			23,700,000	21,800,000	20,000,000.0
Amortization of deferred financing costs																			$ 1,600,000	1,500,000	1,400,000
Convertible notes, interest rate											2.625%								2.625%
Convertible notes maturity											Mar. 15, 2024								Mar. 15, 2024
Principal amount of convertible notes											$ 1,000								$ 1,000
Convertible notes conversion rate											16.0056								16.0467
Convertible notes conversion price | $ / shares											$ 62.48								$ 62.32
Paid-in-capital in excess of par value											$ 139,900,000
Long-term debt											$ 410,100,000
Effective interest rate on convertible notes											8.40%
Fair value of liability to convertible notes																			$ 547,400,000	$ 541,800,000
Convertible notes, conversion feature																				Holders of the 2024 Convertible Notes may convert their notes at their option under the following circumstances: (i) during any calendar quarter commencing after the calendar quarter ending June 30, 2018, 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 2024 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 2024 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 2024 Convertible Notes for each such day; (iii) if the Company calls the 2024 Convertible Notes for redemption; or (iv) upon the occurrence of specified corporate events. On and after December 15, 2023, holders may convert their 2024 Convertible Notes at any time, regardless of the foregoing circumstances.
Convertible notes, number of trading days of threshold limit (whether or not consecutive) | d																				20
Convertible notes, number of trading days of threshold limit in consecutive days | d																				30
Minimum percentage of common share price over conversion price for conversion											130.00%
Minimum percentage of the product of common share price and conversion rate for convertible notes											98.00%
Deferred financing costs recorded as additional paid-in-capital in excess of par value											$ 3,300,000
Unamortized debt discount and debt issuance costs																			64,000,000.0	$ 89,400,000
Convertible senior notes, carrying value of liability component																			486,000,000.0	460,600,000
2.625% Convertible Senior Notes Due 2024 [Member] | Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs											$ 9,600,000
7.875% Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Outstanding principal amount																			600,000,000.0	600,000,000.0
Debt Instrument, Face Amount									$ 600,000,000.0
Deferred financing costs																			5,800,000	7,100,000			$ 7,900,000
Aggregate principal amount of convertible senior notes issued									$ 600,000,000.0
Interest expense																			48,600,000	28,500,000
Amortization of deferred financing costs																			$ 1,300,000	700,000
Convertible notes, interest rate									7.875%										7.875%
Convertible notes maturity									Sep. 01, 2025										Jan. 09, 2025
Senior notes, redemption price, percentage									100.00%
Senior notes, redemption price percentage with equity offerings									107.875%
Carrying amount																			$ 594,200,000	592,900,000
7.875% Senior Notes Due 2025 [Member] | Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs																							$ 7,900,000
7.875% Senior Notes Due 2025 [Member] | Level 2 [Member]
Debt Instrument [Line Items]
Fair value of notes																			639,700,000	656,300,000
7.875% Senior Notes Due 2025 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Percentage of aggregate principal amount of senior notes being redeemed									40.00%
7.250% Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Outstanding principal amount																				400,000,000.0
Debt Instrument, Face Amount								$ 600,000,000.0		$ 400,000,000.0
Deferred financing costs																				4,100,000				$ 5,400,000
Aggregate principal amount of convertible senior notes issued								600,000,000.0		$ 400,000,000.0
Credit facility, amount borrowed								428,500,000
Loss on extinguishment of debt														$ (24,600,000)
Interest expense																			11,500,000	29,600,000	29,500,000
Amortization of deferred financing costs																			$ 200,000	600,000	500,000
Convertible notes, interest rate										7.25%									7.25%
Convertible notes maturity										Aug. 15, 2026									Aug. 15, 2026
Accrued interest								7,700,000
Carrying amount																				395,900,000
Fair value of notes																				425,000,000.0
Proceed to redeem senior notes								400,000,000.0
7.250% Senior Notes Due 2026 [Member] | Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs																								$ 5,400,000
4.875% Senior Notes Due 2029 [Member]
Debt Instrument [Line Items]
Outstanding principal amount																			$ 600,000,000.0
Debt Instrument, Face Amount								600,000,000.0
Deferred financing costs														7,700,000			$ 7,700,000
Aggregate principal amount of convertible senior notes issued								$ 600,000,000.0
Interest expense																			18,400,000
Amortization of deferred financing costs																			$ 500,000
Convertible notes, interest rate								4.875%											4.875%
Convertible notes maturity								Jun. 01, 2029											Jan. 06, 2029
Unamortized debt discount and debt issuance costs																			$ 7,200,000
Senior notes, redemption price, percentage								100.00%
Senior notes, redemption price percentage with equity offerings								104.875%
Carrying amount																			592,800,000
Fair value of notes																			588,900,000
4.875% Senior Notes Due 2029 [Member] | Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Deferred financing costs														$ 7,700,000			$ 7,700,000
4.875% Senior Notes Due 2029 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Percentage of aggregate principal amount of senior notes being redeemed								40.00%
Eurodollar [Member]
Debt Instrument [Line Items]
Base rate interest rate floor						0.00%
2018 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, amount borrowed																			630,000,000.0
Credit facility, amount repaid																			480,000,000.0
Borrowings under the senior secured credit facility																			150,000,000.0
2018 Term Loan B [Member]
Debt Instrument [Line Items]
Credit facility, amount repaid																			60,000,000.0
2017 Credit Facility [Member] | 2017 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Repayment of prior senior secured credit facility						$ 1,178,100,000
2018 Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount						1,250,000,000
Deferred financing costs				$ 1,200,000		11,700,000																$ 1,100,000
Credit facility, amount borrowed																			671,200,000	30,400,000
Credit facility, amount repaid																			$ 561,300,000	$ 20,700,000	20,000,000.0
Long-term debt, weighted average interest rate																			2.62%	3.39%
Borrowings under the senior secured credit facility																			$ 1,094,600,000	$ 984,700,000	0
Interest expense																			33,900,000	37,200,000	58,900,000
Non-cash interest expense																			400,000	300,000	200,000
Amortization of deferred financing costs																			2,300,000	1,800,000	$ 1,700,000
Commitment Fee Percentage							0.35%
2018 Credit Facility [Member] | 2024 Convertible Notes Exceeds 350 Million [Member] | Minimum [Member]
Debt Instrument [Line Items]
Outstanding principal amount			$ 350,000,000.0			$ 350,000,000.0
2018 Credit Facility [Member] | Second Amendment [Member]
Debt Instrument [Line Items]
Debt Modification Costs	$ 1,400,000		1,600,000
Deferred financing costs			$ 1,100,000																800,000
Credit facility amendment date			Mar. 19, 2020
Recognized in interest expense, net													$ 600,000		$ 500,000
2018 Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate						1.00%
2018 Credit Facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Base rate interest rate floor						1.00%
2018 Credit Facility [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate						0.50%
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount						$ 250,000,000.0
Borrowings under the senior secured credit facility																			150,000,000.0	0
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%					0.25%
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.35%					0.35%
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Second Amendment [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount			$ 250,000,000.0
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Second Amendment [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount																			282,500,000
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Fourth Amendment [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount	$ 282,500,000
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Fourth Amendment [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount																			$ 330,000,000.0
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate	0.75%
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate	1.25%
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Base Rate [Member] | Second Amendment [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																		1.50%
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Base Rate [Member] | Second Amendment [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																			1.25%
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Eurodollar [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate	1.75%
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Eurodollar [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate	2.25%
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member] | Eurodollar [Member] | Second Amendment [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																	2.50%
2018 Credit Facility [Member] | 2018 Term Loan A [Member]
Debt Instrument [Line Items]
Outstanding principal amount						$ 250,000,000.0
Borrowings under the senior secured credit facility																			$ 279,000,000.0	251,600,000
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Level 2 [Member]
Debt Instrument [Line Items]
Outstanding principal amount																			278,100,000	250,500,000
Debt instrument, fair value																			$ 278,000,000.0	251,900,000
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | 2024 Convertible Notes Exceeds 350 Million [Member]
Debt Instrument [Line Items]
Credit facility, maturity date																			Sep. 15, 2023
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Second Amendment [Member]
Debt Instrument [Line Items]
Extended maturity date																			Mar. 19, 2025
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Second Amendment [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount			$ 234,400,000
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Second Amendment [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount																			$ 264,800,000
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Fourth Amendment [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount	$ 245,000,000.0
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Fourth Amendment [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit facility, maximum amount																			$ 286,200,000
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Base Rate [Member] | Second Amendment [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate						0.75%
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Eurodollar [Member] | Second Amendment [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate						1.75%
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Eurodollar [Member] | Second Amendment [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																			2.25%
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | 2018 Revolving Credit Facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate	1.50%		2.00%
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | 2018 Revolving Credit Facility [Member] | Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate	2.50%		3.00%
2018 Credit Facility [Member] | 2018 Term Loan B [Member]
Debt Instrument [Line Items]
Outstanding principal amount						$ 750,000,000.0
Credit facility, maturity date						Aug. 18, 2025
Senior secured credit facility, discount percentage						0.25%
Senior secured credit facility, discount amount						$ 1,900,000
Borrowings under the senior secured credit facility																			$ 665,600,000	733,100,000
2018 Credit Facility [Member] | 2018 Term Loan B [Member] | Level 2 [Member]
Debt Instrument [Line Items]
Outstanding principal amount																			660,500,000	726,000,000.0
Debt instrument, fair value																			$ 663,100,000	$ 734,000,000.0
2018 Credit Facility [Member] | 2018 Term Loan B [Member] | 2024 Convertible Notes Exceeds 350 Million [Member]
Debt Instrument [Line Items]
Credit facility, maturity date						Dec. 15, 2023
2018 Credit Facility [Member] | 2018 Term Loan B [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate		1.75%		1.75%		2.25%
2018 Credit Facility [Member] | 2018 Term Loan B [Member] | Base Rate [Member] | Third Amendment [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																			1.50%
2018 Credit Facility [Member] | 2018 Term Loan B [Member] | Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate		2.75%		2.75%		3.25%
2018 Credit Facility [Member] | 2018 Term Loan B [Member] | Eurodollar [Member] | Third Amendment [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate																	2.50%
2018 Credit Facility [Member] | 2018 Term Loan B [Member] | 2018 Revolving Credit Facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate						1.50%
2018 Credit Facility [Member] | 2018 Term Loan B [Member] | 2018 Revolving Credit Facility [Member] | Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread on variable rate						2.50%
Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount						$ 400,000,000.0
Aggregate principal amount of convertible senior notes issued						$ 400,000,000.0