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

Average fixed interest rate related to the group of interest rate derivatives.

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611

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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.

+ Details

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- Details

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- Details

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Derivatives and Hedging Activities - Balance Sheet Location for Derivative Instrument (Details) - USD ($) $ in Thousands	Sep. 30, 2017	May 31, 2017	Dec. 31, 2016
Interest rate swaps
Derivative [Line Items]
Notional Amount		$ 1,200,000
Weighted Average Fixed Rate		1.844%
Designated as Hedging Instrument \| Interest rate swaps
Derivative [Line Items]
Notional Amount	$ 1,200,000		$ 500,000
Weighted Average Fixed Rate			1.825%
Fair Value Asset (Liability)	(1,335)		$ 1,900
Designated as Hedging Instrument \| Interest Rate Swap - Effective Date May 3, 2017 (1)
Derivative [Line Items]
Notional Amount	$ 500,000
Weighted Average Fixed Rate	1.764%
Fair Value Asset (Liability)	$ 1,045
Designated as Hedging Instrument \| Interest Rate Swap - Effective Date May 3, 2017 (2)
Derivative [Line Items]
Notional Amount	$ 700,000
Weighted Average Fixed Rate	1.901%
Fair Value Asset (Liability)	$ (2,380)