Derivative Instruments (Narrative) (Details) $ in Millions	9 Months Ended
Sep. 30, 2021 USD ($)
Derivatives Fair Value [Line Items]
Net losses expected to be reclassified into earnings in the next 12 months	$ 8.0
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member]
Derivatives Fair Value [Line Items]
Derivative assets	$ 40.8
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Minimum [Member]
Derivatives Fair Value [Line Items]
Swaps fixed interest rate	3.04%
LIBOR variable interest rate	1.85%
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Maximum [Member]
Derivatives Fair Value [Line Items]
Swaps fixed interest rate	4.77%
LIBOR variable interest rate	2.10%
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Term Loans [Member]
Derivatives Fair Value [Line Items]
Term loan debt	$ 403.5
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Term Loans Maturing in December 2020 through January 2029 [Member]
Derivatives Fair Value [Line Items]
Term loan debt	$ 607.5
Term loan maturity period	2029-01

Debt instrument maturity period.

No definition available.

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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

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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+ Details

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

+ Details

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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.

+ Details

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