CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	38,055,000	37,618,000
Common stock, shares outstanding (in shares)	35,497,000	35,060,000
Treasury stock, shares (in shares)	2,558,000	2,558,000