Stockholders' Equity - Assumptions Used to Value Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Stockholders' Equity Note [Abstract]
Dividend yield	0.00%	0.00%
Expected volatility	38.00%	41.00%
Risk-free interest rate	1.71%	1.08%
Suboptimal exercise factor	4.71	3.81
Weighted-average fair value (dollars per share)	$ 228	$ 268
Total stock-based compensation expense	$ 119,209	$ 107,230
Total income tax impact on provision	$ 26,413	$ 24,079

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Suboptimal Exercise Factor

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of noncash expense for share-based payment arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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-Name Accounting Standards Codification
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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Publisher FASB
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