CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2021	Dec. 31, 2020
Special Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Special Stock, Shares Authorized	1	1
Special Stock, Shares Issued	1	1
Special Stock, Shares Outstanding	1	1
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	79,999,997	79,999,997
Common Stock, Shares, Issued	38,853,443	38,345,540
Common Stock, Shares, Outstanding	32,455,568	32,172,107
Treasury Stock, Shares	6,397,875	6,173,433
Blank Check Preferred Stock
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	40,000,000	40,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Preferred Stock
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	2	2
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0