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

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
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- Definition

Fixed interest rate related to the interest rate derivative.

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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.

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Date the derivative contract matures, in CCYY-MM-DD format.

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- Definition

Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

+ References

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Derivative Instruments - Interest rate derivatives and their fair values (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 20, 2018	Apr. 05, 2017
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Reclassification of other comprehensive income to interest expense (income)	$ (494)	$ 402
Forecast
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Reclassification of other comprehensive income to interest expense (income)			$ 1,300
Interest Rate Swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative					$ 400,000	$ 400,000
Interest Rate Swap \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	1,000,000			$ 1,000,000
Fair value	(5,819)			2,343
Swap instrument one matures on December 17, 2021 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 25,000			25,000
Fixed Rate Per annum	1.989%
Expiration Date	Dec. 17, 2021
Fair value	$ 131			331
Swap instrument two matures on December 17, 2021 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 100,000			100,000
Fixed Rate Per annum	1.989%
Expiration Date	Dec. 17, 2021
Fair value	$ 523			1,318
Swap instrument three matures on December 17, 2021 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 75,000			75,000
Fixed Rate Per annum	1.989%
Expiration Date	Dec. 17, 2021
Fair value	$ 392			990
Swap instrument one matures on April 27, 2022 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 50,000			50,000
Fixed Rate Per annum	2.033%
Expiration Date	Apr. 27, 2022
Fair value	$ 213			667
Swap instrument two matures on April 27, 2022 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 100,000			100,000
Fixed Rate Per annum	2.029%
Expiration Date	Apr. 27, 2022
Fair value	$ 436			1,341
Swap instrument three matures on April 27, 2022 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 50,000			50,000
Fixed Rate Per annum	2.033%
Expiration Date	Apr. 27, 2022
Fair value	$ 212			666
Swap instrument one matures on December 17, 2023 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 100,000			100,000
Fixed Rate Per annum	2.617%
Expiration Date	Dec. 17, 2023
Fair value	$ (1,935)			(782)
Swap instrument one matures on April 27, 2024 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 100,000			100,000
Fixed Rate Per annum	2.621%
Expiration Date	Apr. 27, 2024
Fair value	$ (2,071)			(818)
Swap instrument two matures on December 17, 2023 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 200,000			200,000
Fixed Rate Per annum	2.636%
Expiration Date	Dec. 17, 2023
Fair value	$ (1,911)			(722)
Swap instrument two matures on April 27, 2024 \| Cash flow hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative	$ 200,000			200,000
Fixed Rate Per annum	2.642%
Expiration Date	Apr. 27, 2024
Fair value	$ (1,809)			$ (648)