CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Accounts receivable, net of allowance	$ 24,997	$ 18,797
Property and equipment, net of accumulated depreciation and amortization	83,306	79,604
Intangible assets, net of accumulated amortization	$ 90,677	$ 82,760
Preferred stock par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock authorized (in shares)	5,000,000.0	5,000,000.0
Preferred stock outstanding (in shares)	0	0
Common stock par value (in dollars per share)	$ 0.001	$ 0.001
Common stock authorized (in shares)	250,000,000.0	250,000,000.0
Common stock issued (in shares)	104,900,000	104,000,000.0
Common stock outstanding (in shares)	67,500,000	68,200,000
Treasury stock (in shares)	37,500,000	35,800,000
Series A convertible preferred stock
Preferred stock authorized (in shares)	1,000,000.0	1,000,000.0