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Debt - Narrative (Details)									3 Months Ended		12 Months Ended
	Oct. 08, 2021 USD ($)	Oct. 07, 2021 USD ($) $ / shares	Oct. 06, 2021	Sep. 16, 2021 USD ($) extension	Oct. 07, 2020 USD ($) fiscalQuarterPeriod	Nov. 15, 2019 USD ($) tradingDay $ / shares	Jun. 27, 2017 USD ($)	Jun. 10, 2014 USD ($)	Dec. 31, 2021 USD ($) tradingDay	Dec. 31, 2020 USD ($) tradingDay	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jan. 31, 2022 USD ($)	Apr. 07, 2021 USD ($)
Debt Instrument [Line Items]
Interest expense											$ 79,600,000	$ 58,100,000	$ 26,100,000
Redemption premium											1,096,000	29,250,000	0
Loss on extinguishment of debt											5,274,000	0	0
Repayments of long-term debt											512,388,000	650,000,000	5,100,000
Reacquisition of 3.25% Convertible Notes, net of tax											390,526,000
If-converted value in excess of the principal amount												173,300,000
Total fair value adjustments reported in earnings											0	0	(800,000)
Debt issuance costs									$ 9,056,000	$ 11,505,000	9,056,000	11,505,000
Issuance of senior notes		$ 500,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity															$ 100,000,000
Increases in commitment															250,000,000
Total aggregate commitment															$ 350,000,000
Senior Notes | 6.0% Senior Notes
Debt Instrument [Line Items]
Stated interest rate					6.00%
Face amount							$ 650,000,000
Proceeds from debt, net of issuance costs							$ 636,500,000
Redemption payment of senior notes					$ 694,600,000
Redemption premium					29,200,000
Payments of interest					15,400,000
Loss on extinguishment of debt					$ 38,000,000
Senior Notes | 4.625% Senior Notes Due in 2030
Debt Instrument [Line Items]
Stated interest rate	4.625%				4.625%
Face amount					$ 750,000,000
Proceeds from debt, net of issuance costs					$ 742,700,000
Loss on extinguishment of debt	$ 7,400,000										600,000
Percentage principal outstanding to be eligible for redemption					50.00%
Covenant, leverage ratio, minimum					3.5
Covenant restricted payment threshold					$ 250,000,000
Covenant, EBITDA minimum					50.00%
Covenant, EBITDA minimum, fiscal quarter period | fiscalQuarterPeriod					4
Aggregate principle	83,300,000										25,400,000
Extinguishment of debt, aggregate purchase price	$ 90,000,000
Aggregate purchase price											26,000,000
Fair value of senior notes									659,900,000	796,900,000	659,900,000	796,900,000
Debt issuance costs									1,339,000		1,339,000
Senior Notes | 4.625% Senior Notes Due in 2030 | Subsequent Event
Debt Instrument [Line Items]
Senior notes redeemed														$ 54,600,000
Senior Notes | 4.625% Senior Notes Due in 2030 | Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Percentage of principal amount redeemed					40.00%
Redemption price, percentage					104.625%
Senior Notes | 4.625% Senior Notes Due in 2030 | Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Redemption price, percentage					100.00%
Convertible Debt | 3.25% Convertible Notes
Debt Instrument [Line Items]
Interest expense											11,494,000	24,546,000	$ 23,852,000
Stated interest rate								3.25%
Face amount								$ 402,500,000
Loss on extinguishment of debt											(2,800,000)
Fair value of senior notes									$ 0	$ 593,100,000	$ 0	593,100,000
Contingent interest payment period								6 months
Trading period								5 days
Contingent interest, minimum trading price per principal amount								$ 1,300
Conversion shares issued as extinguishment cost on 3.25% convertible notes (in shares) | shares											3,050,850
Repayments of long-term debt											$ 402,400,000
Convertible debt conversion ratio										1.30	0.0147632
Convertible debt threshold trading days | tradingDay										20
Convertible debt threshold consecutive trading days | tradingDay									30
Borrowing rates of similar debt without the conversion feature								5.79%
Convertible debt carrying amount of equity component								$ 37,700,000	$ 0	$ 37,688,000	$ 0	$ 37,688,000
Effective interest rate								5.81%
Convertible debt remaining discount amortization period												6 months
Debt issuance costs									0	855,000	0	$ 855,000
Convertible Debt | 1.75% Convertible Notes
Debt Instrument [Line Items]
Interest expense											26,136,000	25,314,000
Stated interest rate						1.75%
Face amount						$ 550,000,000
Proceeds from debt, net of issuance costs						$ 537,100,000
Fair value of senior notes									685,400,000	569,700,000	685,400,000	569,700,000
Convertible debt conversion ratio		0.0093783	0.0079864
Convertible debt conversion price (in usd per share) | $ / shares		$ 106.63				$ 125.21
Borrowing rates of similar debt without the conversion feature						5.50%
Convertible debt carrying amount of equity component						$ 88,100,000			88,138,000	88,138,000	$ 88,138,000	88,138,000
Effective interest rate						5.50%
Convertible debt remaining discount amortization period											4 years 9 months 18 days
Debt issuance costs						$ 2,800,000			$ 7,717,000	$ 8,889,000	$ 7,717,000	$ 8,889,000
Gross debt issuance costs						12,900,000
Accumulated amortization of debt issuance costs						$ 10,100,000
Convertible Debt | 1.75% Convertible Notes | Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Convertible debt conversion ratio						1.30
Convertible debt threshold trading days | tradingDay						20
Convertible debt threshold consecutive trading days | tradingDay						30
Convertible Debt | 1.75% Convertible Notes | Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Convertible debt conversion ratio						0.98
Convertible debt threshold trading days | tradingDay						5
Convertible debt threshold consecutive trading days | tradingDay						10
Bridge Loan | Bridge Loan
Debt Instrument [Line Items]
Loss on extinguishment of debt											8,800,000
Aggregate purchase price											485,000,000
Line of credit facility, maximum borrowing capacity				$ 485,000,000
Number of extensions | extension				2
Debt instrument, funding fee percentage				0.50%
Debt instrument , duration fee percentage				0.25%
Costs and interest incurred											$ 5,100,000
Bridge Loan | Bridge Loan | Base Rate | Initial Funding
Debt Instrument [Line Items]
Derivative variable rate				2.00%
Bridge Loan | Bridge Loan | Base Rate | Six To Twelve Months After Funding Member
Debt Instrument [Line Items]
Derivative variable rate				2.50%
Bridge Loan | Bridge Loan | Base Rate | Twelve Months After Funding Until Repayment
Debt Instrument [Line Items]
Derivative variable rate				3.00%
Bridge Loan | Bridge Loan | London Interbank Offered Rate (LIBOR) | Initial Funding
Debt Instrument [Line Items]
Derivative variable rate				3.00%
Bridge Loan | Bridge Loan | London Interbank Offered Rate (LIBOR) | Six To Twelve Months After Funding Member
Debt Instrument [Line Items]
Derivative variable rate				3.50%
Bridge Loan | Bridge Loan | London Interbank Offered Rate (LIBOR) | Twelve Months After Funding Until Repayment
Debt Instrument [Line Items]
Derivative variable rate				4.00%

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