Derivatives and Hedging Instruments - Effects of Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ 1,383	$ (3,554)
Derivatives Designated as Hedging Instruments \| Foreign currency exchange contracts \| Cash Flow Hedging \| Salaries and employee benefits
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0	(389)
Gain (Loss) Reclassified from OCI into Income (Loss)	0	127
Derivatives Designated as Hedging Instruments \| Foreign currency exchange contracts \| Cash Flow Hedging \| General and administrative expenses
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0	(45)
Gain (Loss) Reclassified from OCI into Income (Loss)	0	17
Derivatives Designated as Hedging Instruments \| Interest rate swap agreements \| Cash Flow Hedging \| Interest expense
Derivative [Line Items]
Gain (Loss) Recognized in OCI	(11)	(6,707)
Gain (Loss) Reclassified from OCI into Income (Loss)	(2,271)	(1,088)
Derivatives Designated as Hedging Instruments \| Interest rate cap contracts \| Cash Flow Hedging \| Interest expense
Derivative [Line Items]
Gain (Loss) Recognized in OCI	195	(1,396)
Gain (Loss) Reclassified from OCI into Income (Loss)	(107)	(2,542)
Derivatives Designated as Hedging Instruments \| Cross-currency swap agreements \| Cash Flow Hedging \| Interest expense / Other (expense) income
Derivative [Line Items]
Gain (Loss) Recognized in OCI	(18,329)	0
Gain (Loss) Reclassified from OCI into Income (Loss)	$ (17,528)	$ 0

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Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580

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Amount, after tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e689-108580

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580

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