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, 2020
Dec. 31, 2019
CONSOLIDATED BALANCE SHEETS    
Allowance for doubtful accounts $ 6,926 $ 4,854
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 39,029,913 38,884,530
Common stock, shares outstanding 33,018,925 33,489,769
Treasury stock, shares at cost 6,010,988 5,394,761