Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Dec. 03, 2020	Jul. 28, 2020	Feb. 20, 2020	Feb. 21, 2019	Dec. 01, 2017	May 18, 2017	Jun. 02, 2016
Stockholders Equity [Line Items]
Common stock, par value (in dollars per share)	$ 0.01				$ 0.01		$ 0.01
Reduction to additional paid in capital		$ (46,133,000)	$ (51,053,000)	$ (50,311,000)
Reduction in retained earnings	$ (1,590,467,000)				$ (1,590,467,000)		$ (1,506,271,000)
Common stock, shares outstanding (in shares)	34,282				34,282		34,481
Additional Paid-in Capital
Stockholders Equity [Line Items]
Reduction to additional paid in capital		$ (3,047,000)	(51,048,000)	$ (50,306,000)	$ (3,000,000.0)
2016 Stock Repurchase Program
Stockholders Equity [Line Items]
Stock repurchase program authorized amount	$ 900,000,000.0				900,000,000.0									$ 100,000,000.0
Stock repurchase program additional amount authorized								$ 200,000,000.0	$ 200,000,000.0	$ 100,000,000.0	$ 100,000,000.0	$ 100,000,000.0	$ 100,000,000.0
Available amount under repurchase program	167,100,000				167,100,000
Reduction to additional paid in capital	0		$ (51,043,000)		(46,124,000)	$ (101,344,000)
Reduction in retained earnings	$ (43,100,000)				$ (43,100,000)