Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 11,377	$ 12,238	$ 21,094	$ 24,676
Defined benefit pension plans:
Actuarial gains (losses) and other changes in unrecognized costs	(258)	(354)	(473)	(6)
Amortization of unrecognized costs	1,669	1,440	3,335	2,874
Derivative instruments:
Change in unrealized gains (losses)	356	(1,390)	(215)	(237)
Foreign currency translation gains (losses)	11,082	4,425	20,601	(1,170)
Other comprehensive income (loss) before tax	13,383	5,303	24,369	1,442
Income tax provision (benefit):
Actuarial gains (losses) and other changes in unrecognized costs	54	70	100	23
Amortization of unrecognized costs	(400)	(348)	(800)	(693)
Change in unrealized gains (losses)	5	134	118	109
Income tax provision (benefit) to other comprehensive income (loss)	(481)	(158)	(859)	(568)
Other comprehensive income (loss), net of tax	12,902	5,145	23,510	874
Comprehensive income (loss)	24,279	17,383	44,604	25,550
Interest Expense [Member]
Derivative instruments:
Amortization of unrealized gains and (losses)	534	1,182	1,121	(19)
Income tax provision (benefit):
Amortization of unrealized gains (losses) into interest expense	$ (140)	$ (14)	$ (277)	$ (7)