Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Detail)

v3.21.2
Long-Term Debt - Additional Information (Detail)
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 10, 2021
Mar. 19, 2020
USD ($)
Dec. 12, 2019
USD ($)
Aug. 16, 2018
USD ($)
May 31, 2021
USD ($)
May 31, 2020
USD ($)
Aug. 31, 2018
USD ($)
Mar. 31, 2018
USD ($)
$ / shares
Jun. 30, 2021
USD ($)
$ / shares
Jun. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Jun. 30, 2021
USD ($)
Days
$ / shares
Jun. 30, 2020
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2018
USD ($)
Debt Instrument [Line Items]                                
Outstanding principal amount                 $ 2,877,700,000     $ 2,877,700,000        
Loss on extinguishment of debt                       24,600,000 $ 0      
Borrowings under the senior secured credit facility                 1,117,000,000.0     1,117,000,000.0     $ 976,500,000  
Interest expense                 37,800,000 $ 30,500,000   76,700,000 59,400,000      
Paid-in-capital in excess of par value                 306,100,000     306,100,000     342,300,000  
Long-term debt                 2,779,200,000     2,779,200,000     2,428,400,000  
Letters of credit issued but undrawn                 41,700,000     41,700,000        
2.625% Convertible Senior Notes Due 2024 [Member]                                
Debt Instrument [Line Items]                                
Outstanding principal amount               $ 550,000,000.0 550,000,000.0     550,000,000.0     550,000,000.0  
Deferred financing costs               12,900,000                
Aggregate principal amount of convertible senior notes issued               $ 550,000,000.0                
Interest expense                 9,900,000 9,400,000   19,600,000 18,600,000      
Non-cash interest expense                 5,900,000 5,400,000   11,600,000 10,700,000      
Amortization of deferred financing costs                 $ 400,000 300,000   $ 800,000 700,000      
Convertible notes, interest rate               2.625% 2.625%     2.625%        
Convertible notes maturity               Mar. 15, 2024       May 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     $ 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                 $ 550,500,000     $ 550,500,000     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) | Days                       20        
Convertible notes, number of trading days of threshold limit in consecutive days | Days                       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                 77,000,000.0     $ 77,000,000.0     89,400,000  
Convertible senior notes, carrying value of liability component                 473,000,000.0     473,000,000.0     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     600,000,000.0  
Deferred financing costs                 6,500,000 7,900,000   6,500,000 7,900,000   7,100,000  
Aggregate principal amount of convertible senior notes issued           $ 600,000,000.0                    
Interest expense                 12,200,000 4,300,000   24,300,000 4,300,000      
Amortization of deferred financing costs                 $ 300,000 100,000   $ 600,000 100,000      
Convertible notes, interest rate           7.875%     7.875%     7.875%        
Convertible notes maturity           Sep. 01, 2025           Sep. 01, 2025        
Senior notes, redemption price, percentage           100.00%                    
Senior notes, redemption price percentage with equity offerings           107.875%                    
Carrying amount                 $ 593,500,000     $ 593,500,000     592,900,000  
7.875% Senior Notes Due 2025 [Member] | Debt Issuance Costs [Member]                                
Debt Instrument [Line Items]                                
Deferred financing costs                   7,900,000     7,900,000      
7.875% Senior Notes Due 2025 [Member] | Level 2 [Member]                                
Debt Instrument [Line Items]                                
Fair value of notes                 653,900,000     653,900,000     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  
Deferred financing costs                             4,100,000 $ 5,400,000
Aggregate principal amount of convertible senior notes issued             $ 400,000,000.0                  
Proceed to redeem senior notes         $ 400,000,000.0                      
Credit facility, amount borrowed         428,500,000                      
Loss on extinguishment of debt                 (24,600,000)              
Interest expense                 4,100,000 7,400,000   11,500,000 14,800,000      
Amortization of deferred financing costs                 $ 100,000 200,000   $ 200,000 300,000      
Convertible notes, interest rate             7.25%   7.25%     7.25%        
Convertible notes maturity             Aug. 15, 2026         Aug. 15, 2026        
Accrued interest         7,700,000                      
Senior notes, redemption price, percentage             100.00%                  
Senior notes, redemption price percentage with equity offerings             107.25%                  
Carrying amount                             395,900,000  
Fair value of notes                             $ 425,000,000.0  
7.250% Senior Notes Due 2026 [Member] | Debt Issuance Costs [Member]                                
Debt Instrument [Line Items]                                
Deferred financing costs                               $ 5,400,000
7.250% Senior Notes Due 2026 [Member] | Maximum [Member]                                
Debt Instrument [Line Items]                                
Percentage of aggregate principal amount of senior notes being redeemed             40.00%                  
4.875% Senior Notes Due 2029 [Member]                                
Debt Instrument [Line Items]                                
Outstanding principal amount                 $ 600,000,000.0     $ 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                 3,400,000     3,400,000        
Amortization of deferred financing costs                 $ 100,000     $ 100,000        
Convertible notes, interest rate         4.875%       4.875%     4.875%        
Convertible notes maturity         Jun. 01, 2029             Jun. 01, 2029        
Unamortized debt discount and debt issuance costs                 $ 7,600,000     $ 7,600,000        
Senior notes, redemption price, percentage         100.00%                      
Senior notes, redemption price percentage with equity offerings         104.875%                      
Carrying amount                 592,400,000     592,400,000        
Fair value of notes                 605,300,000     605,300,000        
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]                                
Borrowings under the senior secured credit facility                 $ 150,000,000.0     150,000,000.0        
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                       345,000,000.0 30,400,000      
Credit facility, amount repaid                       $ 205,400,000 10,400,000      
Long-term debt, weighted average interest rate                 2.69%     2.69%     3.39%  
Borrowings under the senior secured credit facility                 $ 1,124,400,000     $ 1,124,400,000     $ 984,700,000  
Interest expense                 7,900,000 8,900,000   17,200,000 21,200,000      
Non-cash interest expense                 100,000 100,000   200,000 100,000      
Amortization of deferred financing costs                 400,000 $ 500,000   $ 900,000 $ 900,000      
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   1,600,000                            
Deferred financing costs   1,100,000                            
Credit facility amendment date                       Mar. 19, 2020        
Recognized in interest expense, net                     $ 500,000          
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] | LIBOR [Member]                                
Debt Instrument [Line Items]                                
Interest rate spread on variable rate       1.00%                        
2018 Credit Facility [Member] | 2018 Revolving Credit Facility [Member]                                
Debt Instrument [Line Items]                                
Credit facility, maximum amount       $ 250,000,000.0                        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage       0.35%                        
Borrowings under the senior secured credit facility                 150,000,000.0     $ 150,000,000.0     0  
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     $ 282,500,000        
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 Revolving Credit Facility [Member] | Base Rate [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]                                
Debt Instrument [Line Items]                                
Interest rate spread on variable rate                       1.50%        
2018 Credit Facility [Member] | 2018 Term Loan A [Member]                                
Debt Instrument [Line Items]                                
Outstanding principal amount       $ 250,000,000.0                        
Credit facility, maturity date   Aug. 16, 2023                            
Borrowings under the senior secured credit facility                 245,000,000.0     $ 245,000,000.0     251,600,000  
2018 Credit Facility [Member] | 2018 Term Loan A [Member] | Level 2 [Member]                                
Debt Instrument [Line Items]                                
Outstanding principal amount                 244,000,000.0     244,000,000.0     250,500,000  
Debt instrument, fair value                 243,900,000     $ 243,900,000     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]                                
Credit facility, 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     $ 264,800,000        
2018 Credit Facility [Member] | 2018 Term Loan A [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] | 2018 Revolving Credit Facility [Member] | Eurodollar [Member]                                
Debt Instrument [Line Items]                                
Interest rate spread on variable rate   3.00%                            
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   2.00%                            
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                 729,400,000     $ 729,400,000     733,100,000  
2018 Credit Facility [Member] | 2018 Term Loan B [Member] | Level 2 [Member]                                
Debt Instrument [Line Items]                                
Outstanding principal amount                 723,000,000.0     723,000,000.0     726,000,000.0  
Debt instrument, fair value                 $ 726,200,000     $ 726,200,000     $ 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] | 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] | 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%        
Senior Unsecured Notes [Member]                                
Debt Instrument [Line Items]                                
Aggregate principal amount of convertible senior notes issued       $ 400,000,000.0