Variable Interest Entities - Summary of LIHTC Investments and Commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jan. 31, 2022	Dec. 31, 2021
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Gross investment in LIHTC	$ 584,266		$ 68,635
Accumulated amortization	(35,593)		(25,216)
Net investment in LIHTC	548,673		43,419
Unfunded commitments for LIHTC investments	$ 258,297		$ 11,106
Sterling
Variable Interest Entity [Line Items]
Gross investment in LIHTC		$ 515,600
Unfunded commitments for LIHTC investments		$ 267,300

Amount of investment in qualified affordable housing projects.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (b)
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