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Derivative Financial Instruments (Details) $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2019 USD ($) instrument	Sep. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2019 USD ($) instrument	Dec. 31, 2018 USD ($)	Jun. 30, 2019 USD ($)
Derivative [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		$ 3,143		$ (3,246)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (11,666)		$ 10,753		$ 7,691	$ 18,330
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	1,978		1,851		7,508	6,137
Foreign Exchange Option [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	3,463				3,463		$ 4,765
Derivative Liability	(447)				(447)		(42)
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset							144
Derivative Liability	(12,824)				(12,824)		12,895
Notional Amount of Interest Rate Derivatives	500,000				500,000
Notional value of contracts with future start date	0				0
Total current and future notional amount	$ 500,000				$ 500,000
Derivative, Number of Instruments Held | instrument	9				9
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 0		(418)		$ 0	(214)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months					3,062
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax					$ (196)	(4,436)
Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative, Number of Instruments Held | instrument	617				617
Derivative, Notional Amount	$ 581,807				$ 581,807
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(11,666)		11,171		$ 7,691	18,544
Derivative, Underlying Basis					Various
Currency Swap [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	16,007				$ 16,007		15,268
Derivative Liability	(904)				(904)
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Liabilities, Fair Value	$ 0				$ 0
Derivative, Number of Instruments Held | instrument	2				2
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months					$ 3,146
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 1,737		(1,121)		(861)	(1,761)
Interest Expense [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	4,394		(5,686)
Fair value, recurring measurements [Member] | Foreign Exchange Forward [Member]
Derivative [Line Items]
Foreign Currency Contracts, Liability, Fair Value Disclosure	(922)				(922)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Interest Expense [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(485)		(378)		455	209
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Other Income [Member] | Currency Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	2,026		(2,534)		3,538	3,774
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	1,145		(2,184)		(3,006)	(2,987)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Income (loss) before taxes [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	1,541		(2,912)		(3,993)	(3,983)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Income Taxes [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(396)		728		(987)	(996)
Cash Flow Hedging [Member] | Currency Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	124,808				124,808
Net Investment Hedging [Member] | Currency Swap [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 0		3,225		$ 0	5,015
Net Investment Hedging [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative, Number of Instruments Held | instrument	9				9
Derivative, Notional Amount	$ 297,681				$ 297,681
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(4,153)		$ 5,433		8,565	$ 7,319
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	13,764				13,764		4,658
Derivative Asset, Fair Value, Gross Liability	0				0		0
Derivative Liability, Fair Value, Gross Liability	(13,253)				(13,253)		(16,207)
Derivative Liability, Fair Value, Gross Asset	0				0		0
Derivative Liability	(13,253)				(13,253)		(16,207)
Interest Rate Cash Flow Hedge Asset at Fair Value	13,764				13,764		4,658
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	0				0		144
Derivative Asset, Fair Value, Gross Liability	0				0		0
Derivative Liability, Fair Value, Gross Liability	(12,824)				(12,824)		(12,895)
Derivative Liability, Fair Value, Gross Asset	0				0		0
Interest Rate Cash Flow Hedge Liability at Fair Value	(12,824)				(12,824)		(12,895)
Interest Rate Cash Flow Hedge Asset at Fair Value	0				0		144
Designated as Hedging Instrument [Member] | Currency Swap [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	3,048				3,048
Derivative Liability, Fair Value, Gross Liability	0				0		(915)
Derivative Liability, Fair Value, Gross Asset	0				0		0
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Liabilities, Fair Value							(915)
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	10,716				10,716		4,514
Derivative Asset, Fair Value, Gross Liability	0				0		0
Derivative Liability, Fair Value, Gross Liability	(429)				(429)		(2,397)
Derivative Liability, Fair Value, Gross Asset	0				0		0
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Liabilities, Fair Value	(429)				(429)		(2,397)
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	10,314				10,314		16,658
Derivative Asset, Fair Value, Gross Liability	(1,560)				(1,560)		1,139
Derivative Liability, Fair Value, Gross Liability	(1,241)				(1,241)		(169)
Derivative Liability, Fair Value, Gross Asset	319				319		38
Derivative Liability							(131)
Derivative Asset	8,754				8,754		15,519
Not Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	3,495				3,495		4,793
Derivative Asset, Fair Value, Gross Liability	32				32		28
Derivative Liability, Fair Value, Gross Liability	(535)				(535)		(42)
Derivative Liability, Fair Value, Gross Asset	88				88		0
Derivative Liability	(447)				(447)		(42)
Foreign Currency Contract, Asset, Fair Value Disclosure	3,463				3,463		4,765
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	6,819				6,819		11,865
Derivative Asset, Fair Value, Gross Liability	(1,528)				(1,528)		1,111
Derivative Liability, Fair Value, Gross Liability	(706)				(706)		(127)
Derivative Liability, Fair Value, Gross Asset	231				231		38
Derivative, Net Liability Position, Aggregate Fair Value							(89)
Foreign Currency Contract, Asset, Fair Value Disclosure	5,291				5,291		$ 10,754
Foreign Currency Contracts, Liability, Fair Value Disclosure	(475)				$ (475)
Minimum [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Maturity Date					Mar. 31, 2022
Minimum [Member] | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative, Maturity Date					Oct. 15, 2020
Minimum [Member] | Currency Swap [Member]
Derivative [Line Items]
Derivative, Maturity Date					Jun. 19, 2024
Maximum [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Maturity Date					Dec. 31, 2025
Maximum [Member] | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative, Maturity Date					Apr. 15, 2025
Maximum [Member] | Currency Swap [Member]
Derivative [Line Items]
Derivative, Maturity Date					Jun. 19, 2024
Accounting Standards Update 2017-12 [Member] | Other Comprehensive Income Location [Domain]
Derivative [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 153				$ 153

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