Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at the beginning of period	$ 1,287,890	$ 1,313,779	$ 1,301,070	$ 1,310,421
Accumulated other comprehensive income reclassifications for realized loss on foreign currency translation adjustments	1,551	0	1,551	0
Reclassification from other comprehensive income	0	0	6,695	0
Balance at the end of period	1,491,307	1,306,224	1,491,307	1,306,224
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at the beginning of period	(634)	(7,711)	(7,365)	(9,055)
Accumulated other comprehensive income reclassifications for realized loss on foreign currency translation adjustments	1,551		1,551
Reclassification from other comprehensive income			6,695
Balance at the end of period	(2,209)	(7,756)	(2,209)	(7,756)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at the beginning of period	(634)	(622)	(670)	(1,383)
Other comprehensive income (loss) - Gross	(24)	(59)	12	702
Accumulated other comprehensive income reclassifications for realized loss on foreign currency translation adjustments	(1,551)	0	(1,551)	0
Balance at the end of period	(2,209)	(681)	(2,209)	(681)
Available-for-sale marketable securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at the beginning of period - Gross	0	243	0	242
Balance at the beginning of period - Tax	0	59	0	59
Balance at the beginning of period	0	184	0	183
Other comprehensive income (loss) - Gross	0	(109)	0	(107)
Other comprehensive income (loss) - Tax	0	27	0	26
Balance at the end of period	0	102	0	102
Interest Rate Swap.
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at the beginning of period - Gross	0	(9,629)	(8,926)	(10,399)
Balance at the beginning of period - Tax	0	(2,356)	(2,231)	(2,544)
Balance at the beginning of period	0	(7,273)	(6,695)	(7,855)
Other comprehensive income (loss) - Gross	0	127	0	897
Other comprehensive income (loss) - Tax	0	(31)	0	(219)
Reclassification from other comprehensive income	0	0	6,695	0
Balance at the end of period	$ 0	$ (7,177)	$ 0	$ (7,177)