CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares outstanding (in shares)	52,906,115	53,473,620
Treasury stock, shares (in shares)	22,500,750	21,640,109