Consolidated Statement Of Changes In Equity - USD ($) $ in Thousands	Total	Common And Treasury Stock [Member]	Treasury Stock [Member]	Number Of Shares, Net Of Treasury [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Parent [Member]	Noncontrolling Interest [Member]	Redeemable Common Stock [Member]
Balance, Number of Shares at Jun. 30, 2021		81,607,912	(24,891,292)	56,716,620
Balance at Jun. 30, 2021	$ 275,980	$ 80	$ (286,951)		$ 301,959	$ 406,613	$ (145,721)	$ 275,980	$ 0
Redeemable Common Stock, Balance at Jun. 30, 2021	84,979
Stock issued	16,658	$ 3			16,655			16,658
Stock issued, shares		3,185,079		3,185,079
Restricted stock granted	0				0			0
Restricted stock granted, shares		2,278,643		2,278,643
Exercise of stock options	$ 760				760			760
Exercise of stock options, shares	249,521	249,521		249,521
Stock-based compensation charge (Note 17)	$ 3,082				3,082			3,082
Reversal of stock-based compensation charge (Note 17)	(120)				(120)			(120)
Reversal of stock-based compensation charge (Note 17), shares		(105,542)		(105,542)
Stock-based compensation charge related to equity-accounted investment (Note 9)	5				5			5
Transfer from redeemable common stock to additional paid-in-capital (Note 14)	5,550				5,550			5,550		$ (5,550)
Net loss	(43,876)					(43,876)		(43,876)	0
Other comprehensive income (loss) (Note 15)	$ (23,119)						(23,119)	(23,119)	0
Balance, Number of Shares at Jun. 30, 2022	62,324,321	87,215,613	(24,891,292)	62,324,321
Balance at Jun. 30, 2022	$ 234,920	$ 83	$ (286,951)	$ 62,324,321	327,891	362,737	(168,840)	234,920	0
Redeemable Common Stock, Balance at Jun. 30, 2022	79,429
Treasury shares repurchased	(1,287)		$ (1,287)		0			(1,287)
Treasury shares repurchased (in shares)			(352,994)	(352,994)
Stock issued	0				0			0
Stock issued, shares		206,239		206,239
Restricted stock granted	0				0			0
Restricted stock granted, shares		1,418,386		1,418,386
Exercise of stock options	$ 481				481			481
Exercise of stock options, shares	158,659	158,659		158,659
Stock-based compensation charge (Note 17)	$ 7,673				7,673			7,673
Reversal of stock-based compensation charge (Note 17)	(364)				(364)			(364)
Reversal of stock-based compensation charge (Note 17), shares		(114,365)		(114,365)
Stock-based compensation charge related to equity-accounted investment (Note 9)	15				15			15
Net loss	(35,074)					(35,074)		(35,074)	0
Other comprehensive income (loss) (Note 15)	$ (26,886)						(26,886)	(26,886)	0
Balance, Number of Shares at Jun. 30, 2023	63,640,246	88,884,532	(25,244,286)	63,640,246
Balance at Jun. 30, 2023	$ 179,478	$ 83	$ (288,238)	$ 63,640,246	335,696	327,663	(195,726)	179,478	0
Redeemable Common Stock, Balance at Jun. 30, 2023	79,429
Treasury shares repurchased	(1,495)		$ (1,495)		0			(1,495)
Treasury shares repurchased (in shares)			(319,522)	(319,522)
Stock issued	0				0			0
Stock issued, shares		194,454		194,454
Restricted stock granted	0				0			0
Restricted stock granted, shares		1,002,241		1,002,241
Exercise of stock options	$ 165				165			165
Exercise of stock options, shares	54,287	54,287		54,287
Stock-based compensation charge (Note 17)	$ 8,045				8,045			8,045
Reversal of stock-based compensation charge (Note 17)	(134)				(134)			(134)
Reversal of stock-based compensation charge (Note 17), shares		(299,463)		(299,463)
Stock-based compensation charge related to equity-accounted investment (Note 9)	(133)				(133)			(133)
Net loss	(17,440)					(17,440)		(17,440)	0
Other comprehensive income (loss) (Note 15)	$ 7,371						7,371	7,371	0
Balance, Number of Shares at Jun. 30, 2024	64,272,243	89,836,051	(25,563,808)	64,272,243
Balance at Jun. 30, 2024	$ 175,857	$ 83	$ (289,733)		$ 343,639	$ 310,223	$ (188,355)	$ 175,857	$ 0
Redeemable Common Stock, Balance at Jun. 30, 2024	$ 79,429