Treasury Stock - Additional Information (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Oct. 17, 2016
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, additional repurchase authorization		$ 300,000,000.0
Treasury stock (shares)	64,226,667
2016 BOD Authorized Common Stock Repurchase [Member]
Equity, Class of Treasury Stock [Line Items]
Treasury Stock, Shares, Acquired (shares)	259,461
Average cost per share of treasury stock acquired (usd per share)	$ 26.71
Payments for Repurchase of Common Stock	$ 6,900,000
Remaining authorized repurchase amount	$ 105,600,000
2004 Amended and Restated Stock Incentive Plan
Equity, Class of Treasury Stock [Line Items]
Average cost per share of treasury stock acquired (usd per share)	$ 28.63
Treasury shares issued for restricted stock units that vested during the period (shares)	582,151
Average cost of treasury shares that were issued for restricted stock units that vested during the period (usd per share)	$ 3.16
Shares repurchased to satisfy minimum employee withholding tax requirements resulting from the vesting of such restricted stock units (shares)	217,325