Derivative Financial Instruments - Additional Information (Details) - Interest Rate Swap $ in Millions	6 Months Ended
Jun. 30, 2019 USD ($) derivative_agreement	Feb. 28, 2019 USD ($) derivative_agreement
Derivative [Line Items]
Reclassification in next twelve months	$ 12.1
Designated as Hedging Instrument
Derivative [Line Items]
Number of instruments \| derivative_agreement	6	5
Designated as Hedging Instrument \| Cash Flow Hedging
Derivative [Line Items]
Notional	$ 1,500.0	$ 2,500.0
Fixed interest rate	1.58%	2.48%
One Counterparty \| Designated as Hedging Instrument \| Cash Flow Hedging
Derivative [Line Items]
Notional		$ 700.0
Three Counterparties \| Designated as Hedging Instrument \| Cash Flow Hedging
Derivative [Line Items]
Notional		$ 450.0
Six Counterparties [Member] \| Designated as Hedging Instrument \| Cash Flow Hedging
Derivative [Line Items]
Notional	$ 250.0

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

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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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

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-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

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