Derivative Instruments - Cash Flow Hedges of Interest Rate Swaps (Details) - Cash Flow Hedging $ in Millions	9 Months Ended
Sep. 30, 2020 USD ($) interest_rate_swap_agreement	Dec. 31, 2019 USD ($)
Derivative [Line Items]
Net gains (losses) on derivative instruments expected to be reclassified from accumulated other comprehensive income in next 12 months	$ 0.8
Interest Rate Swap \| Designated as Hedging Instrument
Derivative [Line Items]
Number of interest rate swap agreements \| interest_rate_swap_agreement	2
Accrued and other liabilities \| Interest Rate Swap, Effective 04/07/2016 \| Designated as Hedging Instrument
Derivative [Line Items]
Fixed interest rate	3.14%
Notional amount	$ 58.3
Fair value of interest rate swap liability	$ (5.8)	$ (0.2)
Accrued and other liabilities \| Interest Rate Swap, Effective 02/13/2020 \| Designated as Hedging Instrument
Derivative [Line Items]
Fixed interest rate	3.15%
Notional amount	$ 50.0
Fair value of interest rate swap liability	$ (1.5)

Fixed interest rate related to the interest rate derivative.

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- Definition

The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121549185&loc=d3e80845-113994

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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

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
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-Name Accounting Standards Codification
-Topic 815
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- Definition

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

+ References

No definition available.

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- Definition

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

+ References

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-Name Accounting Standards Codification
-Topic 815
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