Business Acquisition - Consideration (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Feb. 01, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 29, 2021
Business Acquisition [Line Items]
Cash paid		$ 0	$ 0	$ 145,344
Parent
Business Acquisition [Line Items]
Cash paid		$ 0	$ 0	$ 145,344
Radius Bancorp, Inc
Business Acquisition [Line Items]
Cash paid	$ 140,256
Fair value of common stock issued	40,808
Consideration related to share-based payments	5,742
Total consideration paid	$ 186,806
Stocks issued in acquisition (shares)	3,761,114
Radius Bancorp, Inc | Parent
Business Acquisition [Line Items]
LendingClub share price ($ per share)					$ 10.85