Stockholders Equity - (Details)	3 Months Ended		6 Months Ended	12 Months Ended
	Dec. 31, 2021 USD ($) class $ / shares shares	Mar. 31, 2021 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) class $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($)	Jun. 26, 2018 USD ($)	Dec. 14, 2017 USD ($)
Equity, Class of Stock [Line Items]
Common stock, shares authorized | shares	125,000,000			125,000,000
Number of classes | class	2			2
Dividends, Cash				$ 12,738,000	$ 6,851,000	$ 0
Common Stock, Dividends, Per Share, Declared | $ / shares		$ 0.08		$ 0.10
Treasury Stock, Cost [Roll Forward]
Treasury stock, cost, beginning of period		$ 346,900,000	$ 346,900,000	$ 346,900,000
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions				40,392,000	15,147,000	15,217,000
Purchase of treasury stock, cost				159,800,000
Treasury stock, cost, end of period	$ 547,100,000			547,100,000	$ 346,900,000
Dividend Paid
Equity, Class of Stock [Line Items]
Dividends, Cash				$ 11,400,000
Treasury Stock
Treasury Stock, Shares [Roll Forward]
Treasury stock, shares, beginning of period | shares		22,619,863	22,619,863	22,619,863
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions | shares				1,055,620
Treasury stock shares received, other | shares				1,155
Purchase of treasury stock, shares | shares				4,371,291
Treasury stock, shares, end of period | shares	28,047,929			28,047,929	22,619,863
Treasury Stock, Cost [Roll Forward]
Treasury stock, cost, beginning of period		$ 346,870,000	$ 346,870,000	$ 346,870,000
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions				40,392,000
Treasury stock received, value, other				29,000
Purchase of treasury stock, cost				159,821,000
Treasury stock, cost, end of period	$ 547,112,000			$ 547,112,000	$ 346,870,000
Treasury Stock, Average Cost Per Share [Roll Forward]
Treasury stock, average cost per share, beginning of period, in dollars per share | $ / shares		$ 15.33	$ 15.33	$ 15.33
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions, Average Cost Per Share | $ / shares				38.26
Treasury stock received, average cost per share, other | $ / shares				25.33
Purchase of treasury stock, average cost per share, in dollars per share | $ / shares				36.56
Treasury stock, average cost per share, end of period, in dollars per share | $ / shares	$ 19.51			$ 19.51	$ 15.33
Additional Paid-in Capital
Equity, Class of Stock [Line Items]
Equity portion of convertible note extinguishment				$ 0	$ (29,645,000)	$ 0
Additional Paid-in Capital | Convertible Debt
Equity, Class of Stock [Line Items]
Equity portion of convertible note extinguishment			$ 29,600,000
Common Stock Class A
Equity, Class of Stock [Line Items]
Common stock, shares authorized | shares	62,500,000			62,500,000	62,500,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01			$ 0.01	$ 0.01
Treasury Stock, Shares [Roll Forward]
Treasury stock, shares, beginning of period | shares		22,619,863	22,619,863	22,619,863
Treasury stock, shares, end of period | shares	28,047,929			28,047,929	22,619,863
Treasury Stock, Cost [Roll Forward]
Treasury stock, cost, beginning of period		$ 346,870,000	$ 346,870,000	$ 346,870,000
Treasury stock, cost, end of period	$ 547,112,000			$ 547,112,000	$ 346,870,000
Common Stock Class B
Equity, Class of Stock [Line Items]
Common stock, shares authorized | shares	62,500,000			62,500,000	62,500,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01			$ 0.01	$ 0.01
Convertible Debt
Equity, Class of Stock [Line Items]
Unamortized discount					$ 6,700,000
Convertible Debt | 2022 convertible note
Equity, Class of Stock [Line Items]
Unamortized discount	$ 5,100,000			$ 5,100,000				$ 23,400,000
Option Indexed to Issuer's Equity, Settlement Alternatives, Cash, at Fair Value							$ 29,000,000
Equity portion of convertible note extinguishment	$ 29,600,000