CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Company Stock Held By NQDC	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment
Beginning Balance (in shares) at Dec. 31, 2018		178,253
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under equity incentive plans, net of tax (in shares)		1,585
Repurchase of common stock (in shares)		0
Ending Balance (in shares) at Dec. 31, 2019		179,838
Beginning balance at Dec. 31, 2018	$ 2,967,940	$ 178	$ 4,669,926	$ 0	$ (13,301)	$ 5,271	$ (1,694,134)	$ (2,727)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under equity incentive plans, net of tax		2	(11,071)
Stock-based compensation			163,891
Repurchase of common stock			0	0
Common stock held by the NQDC			(692)		692
Accounting impact of NQDC Plan Change			10,653		2,648
Retirement of treasury stock				0
Other comprehensive income (loss)	14,893					14,893
Net Income (Loss)	(23,848)						(23,848)
Ending balance at Dec. 31, 2019	3,122,381	$ 180	4,832,707	0	(9,961)	20,164	(1,720,709)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under equity incentive plans, net of tax (in shares)		2,421
Repurchase of common stock (in shares)		(518)
Ending Balance (in shares) at Dec. 31, 2020		181,741
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under equity incentive plans, net of tax		$ 2	27,275
Stock-based compensation			183,547
Repurchase of common stock			(50,000)	(50,000)
Common stock held by the NQDC			(122)		122
Accounting impact of NQDC Plan Change			0		0
Retirement of treasury stock				50,000
Other comprehensive income (loss)	(36,303)					(36,303)
Net Income (Loss)	859,100						859,100
Ending balance at Dec. 31, 2020	4,106,002	$ 182	4,993,407	0	(9,839)	(16,139)	(861,609)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under equity incentive plans, net of tax (in shares)		2,172
Repurchase of common stock (in shares)		0
Ending Balance (in shares) at Dec. 31, 2021		183,913
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under equity incentive plans, net of tax		$ 2	3,389
Stock-based compensation			194,856
Repurchase of common stock			0	0
Common stock held by the NQDC			(150)		150
Accounting impact of NQDC Plan Change			0		0
Retirement of treasury stock				0
Other comprehensive income (loss)	30,571					30,571
Net Income (Loss)	(64,080)						(64,080)
Ending balance at Dec. 31, 2021	$ 4,270,740	$ 184	$ 5,191,502	$ 0	$ (9,689)	$ 14,432	$ (925,689)