Segment Reporting - Statements of Operations (Details) - USD ($) $ in Thousands		11 Months Ended	12 Months Ended
		Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Marketplace revenue			$ 291,484	$ 683,626	$ 578,580
Other non-interest income			11,297	28,765	27,219
Total non-interest income			302,781	712,391	605,799
Interest income			832,630	557,340	292,832
Interest expense			(270,792)	(82,515)	(80,001)
Net interest income			561,838	474,825	212,831
Total net revenue			864,619	1,187,216	818,630
(Provision for) reversal of credit losses			(243,565)	(267,326)	(138,800)
Non-interest expense			(566,437)	(766,853)	(661,386)
Income before income tax benefit (expense)			54,617	153,037	18,444
Income tax benefit (expense)			(15,678)	136,648	136
Net income	[1]		38,939	289,685	18,580
Capital expenditures			59,509	69,481	34,413
Depreciation and amortization			47,195	43,831	44,285
Operating Segments | LendingClub Bank
Segment Reporting Information [Line Items]
Marketplace revenue		$ 462,821	206,381	610,536
Other non-interest income		94,953	74,684	85,208
Total non-interest income		557,774	281,065	695,744
Interest income		210,739	818,206	526,471
Interest expense		(8,412)	(266,218)	(60,954)
Net interest income		202,327	551,988	465,517
Total net revenue		760,101	833,053	1,161,261
(Provision for) reversal of credit losses		(142,182)	(243,565)	(267,326)
Non-interest expense		(547,799)	(537,026)	(724,304)
Income before income tax benefit (expense)		70,120	52,462	169,631
Income tax benefit (expense)		9,171	(17,881)	(42,354)
Net income		79,291	34,581	127,277
Capital expenditures		32,602	59,509	69,481
Depreciation and amortization		4,569	30,216	16,489
Operating Segments | LendingClub Corporation (Parent only)
Segment Reporting Information [Line Items]
Marketplace revenue			41,817	48,231	115,759
Other non-interest income			9,503	15,628	16,718
Total non-interest income			51,320	63,859	132,477
Interest income			14,424	30,869	82,093
Interest expense			(4,574)	(21,561)	(71,589)
Net interest income			9,850	9,308	10,504
Total net revenue			61,170	73,167	142,981
(Provision for) reversal of credit losses			0	0	3,382
Non-interest expense			(59,015)	(89,761)	(198,039)
Income before income tax benefit (expense)			2,155	(16,594)	(51,676)
Income tax benefit (expense)			2,203	125,954	44,013
Net income			4,358	109,360	(7,663)
Capital expenditures			0	0	1,811
Depreciation and amortization			16,979	27,342	$ 39,716
Intersegment Eliminations
Segment Reporting Information [Line Items]
Marketplace revenue		0	43,286	24,859
Other non-interest income		(84,452)	(72,890)	(72,071)
Total non-interest income		(84,452)	(29,604)	(47,212)
Interest income		0	0	0
Interest expense		0	0	0
Net interest income		0	0	0
Total net revenue		(84,452)	(29,604)	(47,212)
(Provision for) reversal of credit losses		0	0	0
Non-interest expense		84,452	29,604	47,212
Income before income tax benefit (expense)		0	0	0
Income tax benefit (expense)		(53,048)	0	53,048
Net income		(53,048)	0	53,048
Capital expenditures		0	0	0
Depreciation and amortization		$ 0	$ 0	$ 0

[1] See “Notes to Consolidated Financial Statements – Note 4. Earnings Per Share” for additional information.