Stockholders' Equity - Summary of Restricted Stock Unit and Performance Stock Units Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Number of Units outstanding, beginning of year (in shares)	1,249	1,244	1,902
Number of Units, Granted (in shares)	577	718	287
Number of Units, Released (in shares)	(598)	(547)	(730)
Number of Units, Forfeited (in shares)	(121)	(166)	(215)
Number of Units outstanding, end of period (in shares)	1,107	1,249	1,244
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, Units outstanding, beginning of year (in dollars per share)	$ 45.47	$ 28.52	$ 23.58
Weighted Average Grant Date Fair Value, Granted (in dollars per share)	100.76	59.09	45.99
Weighted Average Grant Date Fair Value, Released (in dollars per share)	40.68	27.38	23.50
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)	52.40	36.91	25.17
Weighted Average Grant Date Fair Value, Units outstanding, end of period (in dollars per share)	$ 76.10	$ 45.47	$ 28.52
Aggregate intrinsic value at year end	$ 135,679
Performance Stock Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Number of Units outstanding, beginning of year (in shares)	6,033	411	446
Number of Units, Granted (in shares)	417	6,041	94
Number of Units, Released (in shares)	(184)	(103)	(42)
Number of Units, Forfeited (in shares)	(648)	(316)	(87)
Number of Units outstanding, end of period (in shares)	5,618	6,033	411
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, Units outstanding, beginning of year (in dollars per share)	$ 34.47	$ 27.82	$ 23.02
Weighted Average Grant Date Fair Value, Granted (in dollars per share)	58.11	34.61	46.29
Weighted Average Grant Date Fair Value, Released (in dollars per share)	27.79	17.14	27.11
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)	40.83	33.99	23.65
Weighted Average Grant Date Fair Value, Units outstanding, end of period (in dollars per share)	$ 35.71	$ 34.47	$ 27.82
Aggregate intrinsic value at year end	$ 688,414

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Intrinsic value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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