Segment Reporting - Balance Sheets (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Assets:
Total cash and cash equivalents		$ 1,203,924		$ 1,057,030
Restricted cash	[1]	34,792		67,454
Total securities available for sale		523,579		345,702
Loans held for sale at fair value		250,361		110,400
Loans and leases held for investment, net		5,178,186		4,705,302
Retail and certificate loans held for investment at fair value	[1]	26,837		55,425
Loans held for investment at fair value	[1]	404,119		925,938
Property, equipment and software, net		151,608		136,473
Investment in subsidiary		0		0
Goodwill		75,717		75,717
Other assets	[1]	493,383		500,306
Total assets		8,342,506		7,979,747
Liabilities and Equity
Total deposits		6,843,535		6,392,553
Borrowings	[1]	15,675		74,858
Retail Notes And Certificates At Fair Value		26,837		55,425
Other liabilities	[1]	250,936		292,617
Liabilities		7,136,983		6,815,453
Total equity		1,205,523	$ 1,190,742	1,164,294	$ 1,079,117	$ 887,434	$ 850,242
Total liabilities and equity		8,342,506		7,979,747
Operating Segments | LendingClub Bank
Assets:
Total cash and cash equivalents		1,176,563		1,020,874
Restricted cash		0		0
Total securities available for sale		515,466		329,287
Loans held for sale at fair value		250,361		110,400
Loans and leases held for investment, net		5,178,186		4,705,302
Retail and certificate loans held for investment at fair value		0		0
Loans held for investment at fair value		390,654		906,711
Property, equipment and software, net		127,438		102,274
Investment in subsidiary		0		0
Goodwill		75,717		75,717
Other assets		335,118		339,341
Total assets		8,049,503		7,589,906
Liabilities and Equity
Total deposits		6,897,220		6,420,827
Borrowings		10,654		64,154
Retail Notes And Certificates At Fair Value		0		0
Other liabilities		156,563		189,185
Liabilities		7,064,437		6,674,166
Total equity		985,066		915,740
Total liabilities and equity		8,049,503		7,589,906
Operating Segments | LendingClub Corporation
Assets:
Total cash and cash equivalents		74,632		56,475
Restricted cash		41,206		75,409
Total securities available for sale		8,113		16,415
Loans held for sale at fair value		0		0
Loans and leases held for investment, net		0		0
Retail and certificate loans held for investment at fair value		26,837		55,425
Loans held for investment at fair value		13,465		19,227
Property, equipment and software, net		24,170		34,199
Investment in subsidiary		797,899		755,319
Goodwill		0		0
Other assets		177,798		173,851
Total assets		1,164,120		1,186,320
Liabilities and Equity
Total deposits		0		0
Borrowings		5,021		10,704
Retail Notes And Certificates At Fair Value		26,837		55,425
Other liabilities		113,921		116,318
Liabilities		145,779		182,447
Total equity		1,018,341		1,003,873
Total liabilities and equity		1,164,120		1,186,320
Intercompany Eliminations
Assets:
Total cash and cash equivalents		(47,271)		(20,319)
Restricted cash		(6,414)		(7,955)
Total securities available for sale		0		0
Loans held for sale at fair value		0		0
Loans and leases held for investment, net		0		0
Retail and certificate loans held for investment at fair value		0		0
Loans held for investment at fair value		0		0
Property, equipment and software, net		0		0
Investment in subsidiary		(797,899)		(755,319)
Goodwill		0		0
Other assets		(19,533)		(12,886)
Total assets		(871,117)		(796,479)
Liabilities and Equity
Total deposits		(53,685)		(28,274)
Borrowings		0		0
Retail Notes And Certificates At Fair Value		0		0
Other liabilities		(19,548)		(12,886)
Liabilities		(73,233)		(41,160)
Total equity		(797,884)		(755,319)
Total liabilities and equity		$ (871,117)		$ (796,479)

[1] Includes amounts in consolidated variable interest entities (VIEs). See “Notes to Condensed Consolidated Financial Statements – Note 6. Securitizations and Variable Interest Entities.”