Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Total
Balance at the beginning of period at Jun. 30, 2021	$ 811	$ 519,826	$ 2,005,105	$ (7,365)	$ (1,217,307)	$ 1,301,070
Balance at the beginning of period (in shares) at Jun. 30, 2021	81,099				31,846
Net income (loss)			(58,004)			(58,004)
Other comprehensive loss, net of tax				(70)		(70)
Reclassification adjustment for loss on interest rate swap				6,695		6,695
Stock-based compensation		9,906				9,906
Net activity from stock-based compensation awards	$ 6	7,679			$ (2,228)	5,457
Net activity from stock-based compensation awards (in shares)	557				61
Proceeds from stock issued under Colleague Stock Purchase Plan		(9)			$ 136	127
Proceeds from stock issued under Colleague Stock Purchase Plan (in shares)					(4)
Balance at the end of period at Sep. 30, 2021	$ 817	537,402	1,947,101	(740)	$ (1,219,399)	$ 1,265,181
Balance at the end of period (in shares) at Sep. 30, 2021	81,656				31,903	49,753
Balance at the beginning of period at Jun. 30, 2022	$ 818	521,848	2,322,810	(960)	$ (1,339,449)	$ 1,505,067
Balance at the beginning of period (in shares) at Jun. 30, 2022	81,796				36,619	45,177
Net income (loss)			2,192			$ 2,192
Other comprehensive loss, net of tax				(1,267)		(1,267)
Reclassification adjustment for loss on interest rate swap						0
Stock-based compensation		6,145				6,145
Net activity from stock-based compensation awards	$ 3	1,238			$ (3,486)	(2,245)
Net activity from stock-based compensation awards (in shares)	303				88
Proceeds from stock issued under Colleague Stock Purchase Plan		(2)			$ 149	147
Proceeds from stock issued under Colleague Stock Purchase Plan (in shares)					(4)
Balance at the end of period at Sep. 30, 2022	$ 821	$ 529,229	$ 2,325,002	$ (2,227)	$ (1,342,786)	$ 1,510,039
Balance at the end of period (in shares) at Sep. 30, 2022	82,099				36,703	45,396