Stockholders' Equity - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Class of Stock [Line Items]
Common stock dividend (in usd per share)	$ 0.03			$ 0.09
Common stock repurchased (in shares)		4,436,963	0	15,861,718	0
Common stock repurchased, price		$ 37,000,000		$ 157,000,000
Stock repurchase program, authorized amount	$ 200,000,000	$ 200,000,000		$ 200,000,000
Common Stock
Class of Stock [Line Items]
Common stock closing price (in usd per share)	$ 8.83	$ 8.83		$ 8.83