Business Combinations Pro Forma Results of Operations (Details) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($) $ / shares shares
Business Acquisition, Pro Forma Information [Abstract]
Revenues | $	$ 466,207
Net income | $	$ 26,767
Basic income per share (USD per share) | $ / shares	$ 0.84
Diluted income per share (USD per share) | $ / shares	$ 0.82
Shares used in computing basic net income per share (in shares) | shares	31,933
Shares used in computing diluted net income per share (in shares) | shares	32,615