Derivatives and Hedging - Outstanding Derivatives Contracts (Details) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2021 USD ($) outstanding_contract derivative_instrument	Dec. 31, 2020 USD ($) outstanding_contract
Derivatives, Fair Value [Line Items]
Number of Contracts \| outstanding_contract	31	167
Notional Amounts	$ 1,463,990	$ 1,830,063
Fair Value Asset (Liability), Net	(70,873)	(110,689)
Unrealized Loss Recorded in AOCL, net of tax	$ (61,848)	$ (78,104)
Interest rate swaps
Derivatives, Fair Value [Line Items]
Number of Contracts \| derivative_instrument	4
Notional Amounts	$ 1,400,000
Not Designated as Hedging Instrument \| Other liabilities \| Interest rate swaps
Derivatives, Fair Value [Line Items]
Number of Contracts \| outstanding_contract	4	4
Notional Amounts	$ 1,400,000	$ 1,400,000
Fair Value Asset (Liability), Net	(42,906)	(74,289)
Unrealized Loss Recorded in AOCL, net of tax	(61,848)	(78,104)
Not Designated as Hedging Instrument \| Accrued liabilities \| Interest rate swaps
Derivatives, Fair Value [Line Items]
Fair Value Asset (Liability), Net	$ (27,823)	$ (34,886)
Not Designated as Hedging Instrument \| Accrued liabilities \| Foreign currency forwards
Derivatives, Fair Value [Line Items]
Number of Contracts \| outstanding_contract	27	163
Notional Amounts	$ 63,990	$ 430,063
Fair Value Asset (Liability), Net	(144)	(1,514)
Unrealized Loss Recorded in AOCL, net of tax	$ 0	$ 0

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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Nominal or face amount used to calculate payment on derivative.

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