Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator for basic and diluted net income per share:
Net income from continuing operations	$ 33,806	$ 1,733
Income/(loss) from discontinued operations, net of tax	13	(46)
Net income	$ 33,819	$ 1,687
Denominator:
Weighted-average shares for basic income per share (in shares)	79,028	80,179
Dilutive effect of stock options and restricted stock units (in shares)	1,497	1,098
Weighted-average shares for diluted income per share (in shares)	80,525	81,277
Basic:
Net (loss)/income from continuing operations (usd per share)	$ 0.43	$ 0.02
Loss from discontinued operations, net of tax (usd per share)	0	0
Net (loss)/income (usd per share)	0.43	0.02
Diluted:
Net income from continuing operations (usd per share)	0.42	0.02
Loss from discontinued operations, net of tax (usd per share)	0	0
Net (loss)/income (usd per share)	$ 0.42	$ 0.02
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	100	500