Earnings (Loss) Per Share - Reconciliation of Weighted Average Share Amounts Used to Compute Basic and Diluted Earnings (Loss) Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Weighted average shares outstanding:
Basic weighted average shares outstanding (in shares)	116,033	116,586	116,019	116,287
Add: Dilutive effect of stock options and RSUs (in shares)	1,231	2,200	0	0
Diluted weighted average shares outstanding (in shares)	117,264	118,786	116,019	116,287