Ownership, Description of Business, and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Convertible notes and exchangeable notes		$ 583,500
Debt Instrument, Unamortized Discount		(19,364)
Other liabilities	$ 149,928	146,893
Additional paid-in capital	167,655	230,440
Accumulated earnings	1,172,756	1,055,668
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,278,784	1,220,076	$ 905,811	$ 1,025,406
Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Convertible notes and exchangeable notes		0
Debt Instrument, Unamortized Discount		19,364
Other liabilities		(1,450)
Additional paid-in capital		(40,372)
Accumulated earnings		22,458
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		(17,914)		$ (44,238)
Adjusted Balance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Convertible notes and exchangeable notes		583,500
Debt Instrument, Unamortized Discount		0
Other liabilities		145,443
Additional paid-in capital		190,068
Accumulated earnings		$ 1,078,126