CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (40,602)	$ 147,142	$ 1,477,529	$ 218,990
Change in foreign currency translation adjustment, net of tax	9,294	213	9,983	622
Change in unrealized gains (losses) on investments, net of tax	0	192	(194)	276
Other comprehensive income	9,294	405	9,789	898
Comprehensive income (loss)	$ (31,308)	$ 147,547	$ 1,487,318	$ 219,888

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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