Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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-Topic 220
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Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

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Fixed interest rate related to the interest rate derivative.

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The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

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Nominal or face amount used to calculate payment on derivative.

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The number of derivative instruments of a particular group held by the entity.

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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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Commitments and Contingencies - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) contract swap	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Commitments And Contingencies [Line Items]
Aggregate fair value of net liability position	$ 152,800
Derivatives designated as hedging instruments
Commitments And Contingencies [Line Items]
Notional amount	1,100,000	$ 187,281
Derivatives not designated as hedging instruments:
Commitments And Contingencies [Line Items]
Notional amount	9,211,043	4,255,866
Interest rate swaps
Commitments And Contingencies [Line Items]
Accumulated net after-tax losses related to effective cash flow hedges	4,000	3,700
Reclassified to interest expense	$ 3,400
Interest rate swaps \| Derivatives not designated as hedging instruments:
Commitments And Contingencies [Line Items]
Number of derivative instruments \| swap	26
Notional amount	$ 8,889,557	4,113,106
Cash flow hedge \| Interest rate swaps \| Derivatives designated as hedging instruments
Commitments And Contingencies [Line Items]
Number of derivative instruments \| contract	10
Notional amount	$ 1,100,000
Cash flow hedge \| Interest rate swaps \| Derivatives designated as hedging instruments \| Minimum
Commitments And Contingencies [Line Items]
Fixed interest rate	0.05%
Cash flow hedge \| Interest rate swaps \| Derivatives designated as hedging instruments \| Maximum
Commitments And Contingencies [Line Items]
Fixed interest rate	0.67%
Fair value hedge \| Interest rate swaps \| Derivatives designated as hedging instruments
Commitments And Contingencies [Line Items]
Number of derivative instruments \| contract	1
Notional amount	$ 0	7,281
Fair value hedge \| Interest rate swaps \| Derivatives not designated as hedging instruments:
Commitments And Contingencies [Line Items]
Number of derivative instruments \| swap	2
Notional amount	$ 10,400
Risk Participation \| Interest rate swaps \| Derivatives not designated as hedging instruments:
Commitments And Contingencies [Line Items]
Notional amount	221,100
Non-interest income \| Fair value hedge \| Interest rate swaps
Commitments And Contingencies [Line Items]
Fee income	$ 59,000	$ 33,400	$ 16,400