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Derivatives and Hedging Activities (Details) - USD ($) $ in Thousands			3 Months Ended			9 Months Ended
	Jan. 31, 2019	Nov. 19, 2015	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2015	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Term Loan 1 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					$ 14,000
U.S. Bank National Association [Member] | Term Loan 3 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					35,000
U.S. Bank National Association [Member] | Term Loan 1 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					6,500
U.S. Bank National Association [Member] | Term Loan 2 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					6,500
Regions Bank [Member] | Term Loan 1 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					3,800
Regions Bank [Member] | Term Loan 2 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					3,800
Wells Fargo Bank, National Association [Member] | Term Loan 1 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					14,000
Wells Fargo Bank, National Association [Member] | Term Loan 2 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					14,000
Bank of American, N.A. [Member] | Term Loan 2 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					14,000
SunTrust Bank [Member] | Term Loan 3 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					15,000
SunTrust Bank [Member] | Term Loan 1 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					5,000
SunTrust Bank [Member] | Term Loan 2 [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty					$ 5,000
Interest rate swap | Interest Expense [Member]
Derivative [Line Items]
Amount Recognized as Comprehensive Income (Loss)			$ 1,241	$ (2,235)		$ (10,395)	$ (11,740)
Amount of Loss Recognized in Earnings			(1,217)	$ 274		(2,388)	$ 1,091
Interest rate swap | Cash Flow Hedging [Member] | Term Loan 3 [Member]
Derivative [Line Items]
Fixed interest rate		1.73%
Interest rate swap | Cash Flow Hedging [Member] | Term Loan 1 [Member]
Derivative [Line Items]
Fixed interest rate		1.75%
Interest rate swap | Cash Flow Hedging [Member] | Term Loan 2 [Member]
Derivative [Line Items]
Fixed interest rate		1.50%
Prepaid expenses and other assets [Member] | Interest rate swap
Derivative [Line Items]
Estimated Fair Value								$ 59
Accounts payable and accrued expenses [Member] | Interest rate swap
Derivative [Line Items]
Estimated Fair Value			$ (15,995)			$ (15,995)		$ (5,660)
February 7, 2019 | Bank of Montreal [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	$ 65,000
February 7, 2019 | U.S. Bank National Association [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	12,900
February 7, 2019 | Regions Bank [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	11,600
February 7, 2019 | Wells Fargo Bank, National Association [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	5,900
February 7, 2019 | SunTrust Bank [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	$ 15,700
February 7, 2019 | Interest rate swap | Cash Flow Hedging [Member] | Term Loan A [Member]
Derivative [Line Items]
Fixed interest rate	2.43%
November 9, 2020 | Bank of Montreal [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	$ 115,000
November 9, 2020 | U.S. Bank National Association [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	22,700
November 9, 2020 | Regions Bank [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	20,500
November 9, 2020 | Wells Fargo Bank, National Association [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	10,500
November 9, 2020 | SunTrust Bank [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	$ 27,900
November 9, 2020 | Interest rate swap | Cash Flow Hedging [Member] | Term Loan A [Member]
Derivative [Line Items]
Fixed interest rate	2.43%
February 8, 2021 | Bank of Montreal [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	$ 165,000
February 8, 2021 | U.S. Bank National Association [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	32,600
February 8, 2021 | Regions Bank [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	29,400
February 8, 2021 | Wells Fargo Bank, National Association [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	15,000
February 8, 2021 | SunTrust Bank [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty	$ 40,000
February 8, 2021 | Interest rate swap | Cash Flow Hedging [Member] | Term Loan A [Member]
Derivative [Line Items]
Fixed interest rate	2.43%
November 19, 2015 | Bank of Montreal [Member] | Term Loan A [Member]
Derivative [Line Items]
Interest Rate Swap Assigned to Counterparty		$ 50,000

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+ References

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

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