XML 14 R3.htm IDEA: XBRL DOCUMENT v3.21.2
Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Statement Of Financial Position [Abstract]    
Allowance for doubtful accounts receivable $ 15,919 $ 15,106
Accumulated depreciation and amortization of property and equipment 247,605 256,065
Accumulated amortization of intangible assets $ 102,588 $ 103,483
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 3,000,000 3,000,000
Preferred stock, shares issued 0 0
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 34,885,000 35,103,000
Common stock, shares outstanding 34,885,000 35,103,000