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Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Jan. 04, 2021	May 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of non-controlling interest in BMT			$ 26,795	$ 0	$ 0
Special dividends (shares)			0.15389
Discontinued Operations | BankMobile Technologies, Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of non-controlling interest in BMT	$ 23,100
Additional consideration from sale of non-controlling interest in BMT		$ 3,700
Share consideration, shares	4,876,387
Special dividends (shares)	0.15389
Share consideration related to severance, shares	1,348,748
Percentage of common stock	52.00%
Expenses under the deposit servicing agreement			$ 59,500
Discontinued Operations | BankMobile Technologies, Inc. | Minimum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services agreement, term	1 year
Discontinued Operations | BankMobile Technologies, Inc. | Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services agreement, term	10 years

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760

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