Accumulated Other Comprehensive Loss - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Currency exchange contracts	$ 3,857	$ 4,211	$ 7,875	$ 6,891
Reclassification of unrealized loss (gain) on derivatives designated and qualified as cash flow hedges, tax	(155)	128	(305)	69
Recognition of actuarial losses	3,425	2,615	6,836	5,239
Benefit from income taxes	(5,676)	(45,253)	(8,554)	(41,487)
Reclassification out of Accumulated Other Comprehensive Loss [Member] | Accumulated Net (Loss) Gain from Designated or Qualifying Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Reclassification of unrealized loss (gain) on derivatives designated and qualified as cash flow hedges, tax	(155)	128	(305)	69
Total before tax	634	(521)	1,245	(281)
Net of tax	479	(393)	940	(212)
Reclassification out of Accumulated Other Comprehensive Loss [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Amortization of transition obligations	23	22	45	44
Amortization of prior service credit	(61)	(56)	(121)	(113)
Recognition of actuarial losses	3,463	2,649	6,912	5,308
Total before tax	3,425	2,615	6,836	5,239
Benefit from income taxes	(811)	(625)	(1,657)	(1,289)
Net of tax	(2,614)	(1,990)	(5,179)	(3,950)
Reclassification out of Accumulated Other Comprehensive Loss [Member] | Forward Starting Interest Rate Swap Contracts [Member] | Accumulated Net (Loss) Gain from Designated or Qualifying Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Forward starting interest rate swaps	635	611	1,269	1,222
Reclassification out of Accumulated Other Comprehensive Loss [Member] | Currency Forward Contracts [Member] | Accumulated Net (Loss) Gain from Designated or Qualifying Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Currency exchange contracts	$ (1)	$ (1,132)	$ (24)	$ (1,503)