Summary of Significant Accounting Policies (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accounting Policies [Abstract]
Weighted average common shares outstanding for basic earnings (loss) per share	116,071	116,571	115,977	116,469
Dilutive effect of options and restricted stock units	0	332	0	370
Diluted weighted average common shares outstanding	116,071	116,903	115,977	116,839