Stockholders' Equity - Schedule of Common Stock (Details) - shares	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares issued beginning balance (In shares)	69,065,491	70,596,559
Repurchase of common stock (in shares)	(747,417)	(782,909)
Awards effectively repurchased for required employee withholding taxes (in shares)	(51,126)	(101,904)
Shares issued ending balance (In shares)	68,470,050	70,079,747
Issuance of common stock from vested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Issuance of common stock from vested restricted stock units (in shares)	173,629	286,719
Issuance of common stock from exercise of stock options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Issuance of common stock from exercise of stock options (in shares)	29,473	81,282

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

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- Definition

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

+ References

No definition available.

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- Definition

Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

+ References

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- Definition

Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

+ References

No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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