Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
CONSOLIDATED BALANCE SHEETS    
Allowance for doubtful accounts $ 4,854 $ 3,676
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares, issued 0 0
Preferred stock, shares, outstanding 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 250,000,000 250,000,000
Common stock, shares issued 38,884,530 38,676,586
Common stock, shares outstanding 33,489,769 34,573,596
Treasury stock, shares at cost 5,394,761 4,102,990