Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

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DERIVATIVE AND HEDGING INSTRUMENTS - Notional Amount of Derivatives Instruments (Details) $ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2019 CAD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 CAD ($)
Cross Currency Interest Rate Swaps \| Designated as Hedging Instrument \| Cash Flow Hedges
Derivative [Line Items]
Notional amount		$ 1,100,000	$ 125,000	$ 1,045,000	$ 125,000
Cross Currency Interest Rate Swaps \| Designated as Hedging Instrument \| Net Investment Hedges
Derivative [Line Items]
Notional amount			56,050		55,401
Notional amount			125,000		125,000
Cross Currency Interest Rate Swaps \| Not Designated as Hedging Instrument \| Net Investment Hedges
Derivative [Line Items]
Notional amount			$ 250		$ 899
Forecast
Derivative [Line Items]
Fixed-rate debt issuance	$ 255,000