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Common Stock - Schedule of Restricted Stock Units (Details) - Restricted stock units - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Number of Shares
Nonvested units at beginning of period (in shares)	33,602
Granted (in shares)	8,195
Vested (in shares)	(5,218)
Cancelled (in shares)	(1,862)
Nonvested units at end of period (in shares)	34,717
Weighted- Average Grant Date Fair Value
Nonvested units at beginning of period (in dollars per share)	$ 41.49
Granted (in dollars per share)	58.18
Vested (in dollars per share)	38.01
Cancelled (in dollars per share)	44.79
Nonvested units at end of period (in dollars per share)	$ 45.84
Nonvested units, aggregate intrinsic value	$ 2,168,444	$ 1,650,577

X

- Definition

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

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

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