Contractual interest rate for funds borrowed, under the debt agreement.

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

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties.

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Derivative Financial Instruments - Narrative (Details)	1 Months Ended	12 Months Ended
Derivative Financial Instruments - Narrative (Details)	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2020 GBP (£)	Oct. 14, 2019 USD ($)	Nov. 19, 2013
Derivative [Line Items]
Expected reclassification of derivative-related losses into earnings		$ 23,900,000
Liabilities, Fair Value Adjustment		500,000	$ 21,900,000
Interest Rate Swap Contracts \| Cash Flow Hedging
Derivative [Line Items]
Notional amounts \| £				£ 50,000,000
Interest Rate Swap Contracts \| March 6, 2020 - December 31, 2024 \| Cash Flow Hedging
Derivative [Line Items]
Notional amounts		$ 200,000,000
Fixed interest rate		0.713%
Interest Rate Cap \| August 1, 2020 - December 31, 2025 \| Cash Flow Hedging
Derivative [Line Items]
Notional amounts		$ 250,000,000
Cap rate		1.00%
Foreign currency forward contracts \| November 2, 2020 and December 1, 2020 \| Cash Flow Hedging
Derivative [Line Items]
Notional amounts					$ 150,000,000
Fixed interest rate					126.70%
Liabilities, Fair Value Adjustment		$ 7,900,000	$ 12,000,000.0
Gain (Loss) on Sale of Derivatives	$ 4,100,000
Convertible Notes
Derivative [Line Items]
Interest rate		1.00%	1.00%			1.00%