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Stockholders' Equity - Stock Options (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 35,713	$ 39,378	$ 100,856	$ 114,378
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 200	$ 1,900	$ 1,300	$ 5,100
Stock options | 2011 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period			10 years
Award vesting period			4 years
Stock options | 2011 Equity Incentive Plan | First Year
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			25.00%
Stock options | 2011 Equity Incentive Plan | Remaining Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			36 months

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