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Derivatives and Hedging Activities - Non-designated Hedges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	$ (264,000)	$ (104,000)	$ 25,000
Interest Rate Swap | Not Designated as Hedging Instrument | Third Parties
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 142,800	$ 96,000

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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.

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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
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959

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-Section 50
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Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

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