Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Common Stock, Par Value	$ 0.01	$ 0.01	$ 0.01
Common Stock, Shares Authorized	200,000	200,000	200,000
Common Stock, Shares Outstanding	50,632	51,871	52,953
Treasury Stock, Shares	30,389	28,794	27,623