Silvergate Capital (SICLQ) 10-Q 9 May 22 2022 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2022	May 02, 2022
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-39123
Entity Registrant Name	SILVERGATE CAPITAL CORPORATION
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	33-0227337
Entity Address, Address Line One	4250 Executive Square
Entity Address, Address Line Two	Suite 300
Entity Address, City or Town	La Jolla
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92037
City Area Code	858
Local Phone Number	362-6300
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (shares)		31,633,815
Amendment Flag	false
Document Fiscal Year Focus	2022
Entity Central Index Key	0001312109
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q1
Class A Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Class A Common Stock, par value $0.01 per share
Trading Symbol	SI
Security Exchange Name	NYSE
Depositary Shares, Each Representing a 1/40th Interest in a Share of 5.375% Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, Each Representing a 1/40th Interest in a Share of 5.375% Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A
Trading Symbol	SI PRA
Security Exchange Name	NYSE

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
ASSETS
Cash and due from banks	$ 207,304	$ 208,193
Interest earning deposits in other banks	1,178,205	5,179,753
Cash and cash equivalents	1,385,509	5,387,946
Securities available-for-sale, at fair value	9,463,494	8,625,259
Securities held-to-maturity, at amortized cost (fair value of $2,578,976 at March 31, 2022)	2,751,625	0
Loans held-for-sale, at lower of cost or fair value	937,140	893,194
Loans held-for-investment, net of allowance for loan losses of $4,442 and $6,916 at March 31, 2022 and December 31, 2021, respectively	739,014	887,304
Federal home loan and federal reserve bank stock, at cost	61,719	34,010
Accrued interest receivable	62,573	40,370
Premises and equipment, net	1,678	3,008
Intangible assets	189,977	0
Derivative assets	46,415	34,056
Other assets	158,869	100,348
Total assets	15,798,013	16,005,495
Deposits:
Noninterest bearing demand accounts	13,323,535	14,213,472
Interest bearing accounts	72,627	77,156
Total deposits	13,396,162	14,290,628
Federal home loan bank advances	800,000	0
Subordinated debentures, net	15,848	15,845
Accrued expenses and other liabilities	39,507	90,186
Total liabilities	14,251,517	14,396,659
Commitments and contingencies
Preferred stock, $0.01 par value—authorized 10,000 shares; $1,000 per share liquidation preference, 200 shares issued and outstanding at March 31, 2022 and December 31, 2021	2	2
Additional paid-in capital	1,553,547	1,421,592
Retained earnings	218,558	193,860
Accumulated other comprehensive loss	(225,927)	(6,922)
Total shareholders’ equity	1,546,496	1,608,836
Total liabilities and shareholders’ equity	15,798,013	16,005,495
Class A common stock, $0.01 par value—authorized 125,000 shares; 31,630 and 30,403 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively
Deposits:
Common stock	316	304
Class B non-voting common stock, $0.01 par value—authorized 25,000 shares; no shares issued and outstanding at March 31, 2022 and December 31, 2021
Deposits:
Common stock	$ 0	$ 0

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value	$ 2,578,976
Allowance for loan losses	$ 4,442	$ 6,916
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock authorized (shares)	10,000,000	10,000,000
Preferred stock liquidation preference (USD per share)	$ 1,000	$ 1,000
Preferred stock issued (shares)	200,000	200,000
Preferred stock outstanding (shares)	200,000	200,000
Class A common stock, $0.01 par value—authorized 125,000 shares; 31,630 and 30,403 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock authorized (shares)	125,000,000	125,000,000
Common stock issued (shares)	31,630,000	30,403,000
Common stock outstanding (shares)	31,630,000	30,403,000
Class B non-voting common stock, $0.01 par value—authorized 25,000 shares; no shares issued and outstanding at March 31, 2022 and December 31, 2021
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock authorized (shares)	25,000,000	25,000,000
Common stock issued (shares)	0	0
Common stock outstanding (shares)	0	0

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Interest income
Loans, including fees	$ 18,287	$ 16,597
Taxable securities	17,779	3,592
Tax-exempt securities	13,184	1,695
Other interest earning assets	1,385	1,279
Dividends and other	203	143
Total interest income	50,838	23,306
Interest expense
Deposits	21	46
Federal home loan bank advances	70	0
Subordinated debentures and other	252	245
Total interest expense	343	291
Net interest income before provision for loan losses	50,495	23,015
Reversal of provision for loan losses	(2,474)	0
Net interest income after provision for loan losses	52,969	23,015
Noninterest income
Deposit related fees	8,968	7,124
Mortgage warehouse fee income	651	954
Loss on sale of securities, net	(605)	0
Other income	436	12
Total noninterest income	9,450	8,090
Noninterest expense
Salaries and employee benefits	15,544	10,990
Occupancy and equipment	586	614
Communications and data processing	2,762	1,621
Professional services	2,954	1,717
Federal deposit insurance	1,762	2,296
Correspondent bank charges	828	497
Other loan expense	384	174
Other general and administrative	3,198	1,697
Total noninterest expense	28,018	19,606
Income before income taxes	34,401	11,499
Income tax expense (benefit)	7,015	(1,211)
Net income	27,386	12,710
Dividends on preferred stock	2,688	0
Net income available to common shareholders. basic	24,698	12,710
Net income available to common shareholders, diluted	$ 24,698	$ 12,710
Basic earnings per common share (USD per share)	$ 0.79	$ 0.56
Diluted earnings per common share (USD per share)	$ 0.79	$ 0.55
Weighted average common shares outstanding:
Basic (shares)	31,219	22,504
Diluted (shares)	31,401	23,010

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 27,386	$ 12,710
Other comprehensive income (loss):
Change in net unrealized loss on available-for-sale securities	(324,226)	(13,434)
Less: Reclassification adjustment for net loss included in net income	605	0
Less: Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity	774	0
Income tax effect	94,220	3,690
Unrealized loss on available-for-sale securities, net of tax	(228,627)	(9,744)
Change in net unrealized gain (loss) on derivative assets	14,603	(7,460)
Less: Reclassification adjustment for net gain included in net income	(951)	(504)
Income tax effect	(4,030)	2,189
Unrealized gain (loss) on derivative instruments, net of tax	9,622	(5,775)
Other comprehensive loss	(219,005)	(15,519)
Total comprehensive loss	$ (191,619)	$ (2,809)

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Preferred Stock	Common StockClass A Common Stock	Common StockClass B Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period (shares) at Dec. 31, 2020				0	18,769,771	64,197
Balance at beginning of period at Dec. 31, 2020	$ 294,299			$ 0	$ 188	$ 1	$ 129,726	$ 118,348	$ 46,036
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss), net of tax	(2,809)							12,710	(15,519)
Issuance of stock, net (shares)					5,860,858
Issuance of stock, net	423,540				$ 58		423,482
Conversion of Class B common stock to Class A common stock (shares)					64,197	(64,197)
Conversion of Class B common stock to Class A common stock	0				$ 1	$ (1)
Stock-based compensation	290						290
Exercise of stock options, net of shares withheld for employee taxes (shares)					124,848
Exercise of stock options, net of shares withheld for employee taxes	(1,699)				$ 1		(1,700)
Issuance of share-based awards, net of shares withheld for employee taxes (shares)					294
Balance at end of period (shares) at Mar. 31, 2021				0	24,819,968	0
Balance at end of period at Mar. 31, 2021	713,621			$ 0	$ 248	$ 0	551,798	131,058	30,517
Balance at beginning of period (shares) at Dec. 31, 2021		30,403,000	0	200,000	30,402,706	0
Balance at beginning of period at Dec. 31, 2021	1,608,836			$ 2	$ 304	$ 0	1,421,592	193,860	(6,922)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss), net of tax	(191,619)							27,386	(219,005)
Dividends on preferred stock	(2,688)							(2,688)
Issuance of stock, net (shares)					1,221,217
Issuance of stock, net	131,517				$ 12		131,505
Stock-based compensation	$ 729						729
Exercise of stock options, net of shares withheld for employee taxes (shares)	1,840				1,840
Exercise of stock options, net of shares withheld for employee taxes	$ 30						30
Issuance of share-based awards, net of shares withheld for employee taxes (shares)					4,552
Issuance of share-based awards, net of shares withheld for employee taxes	(309)						(309)
Balance at end of period (shares) at Mar. 31, 2022		31,630,000	0	200,000	31,630,315	0
Balance at end of period at Mar. 31, 2022	$ 1,546,496			$ 2	$ 316	$ 0	$ 1,553,547	$ 218,558	$ (225,927)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net income	$ 27,386,000	$ 12,710,000
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	815,000	644,000
Amortization of securities premiums and discounts, net	40,503,000	1,212,000
Amortization of loan premiums and discounts and deferred loan origination fees and costs, net	(253,000)	250,000
Stock-based compensation	729,000	290,000
Reversal of provision for loan losses	(2,474,000)	0
Originations of loans held-for-sale	(2,972,952,000)	(3,384,431,000)
Proceeds from sales of loans held-for-sale	2,951,944,000	3,353,164,000
Other gains, net	(430,000)	(1,141,000)
Other, net	675,000	891,000
Changes in operating assets and liabilities:
Accrued interest receivable and other assets	15,480,000	(4,119,000)
Accrued expenses and other liabilities	(47,782,000)	469,000
Net cash provided by (used in) operating activities	13,641,000	(20,061,000)
Cash flows from investing activities
Purchases of securities available-for-sale	(3,303,782,000)	(817,734,000)
Proceeds from sale of securities available-for-sale	432,059,000	0
Proceeds from paydowns and maturities of securities available-for-sale	131,521,000	21,403,000
Purchases of securities held-to-maturity	(1,249,507,000)	0
Proceeds from paydowns and maturities of securities held-to-maturity	26,665,000	0
Loan originations/purchases and payments, net	(20,405,000)	18,112,000
Proceeds from sale of loans, net	149,070,000	0
Purchase of federal home loan and federal reserve bank stock, net	(27,708,000)	0
Purchase of premises and equipment	(274,000)	(32,000)
Payments to acquire intangible assets	(58,403,000)	0
Proceeds from (payments for) derivative contracts, net	2,176,000	(8,439,000)
Net cash used in investing activities	(3,918,588,000)	(786,690,000)
Cash flows from financing activities
Net change in noninterest bearing deposits	(889,937,000)	1,755,702,000
Net change in interest bearing deposits	(4,529,000)	(1,357,000)
Net change in federal home loan bank advances	800,000,000	0
Proceeds from common stock issuance, net	(57,000)	423,540,000
Payments of preferred stock dividends	(2,688,000)	0
Proceeds from stock option exercise	30,000	261,000
Taxes paid related to net share settlement of equity awards	(309,000)	(1,960,000)
Net cash (used in) provided by financing activities	(97,490,000)	2,176,186,000
Net (decrease) increase in cash and cash equivalents	(4,002,437,000)	1,369,435,000
Cash and cash equivalents, beginning of period	5,387,946,000	2,962,087,000
Cash and cash equivalents, end of period	1,385,509,000	4,331,522,000
Supplemental cash flow information:
Cash paid for interest	454,000	444,000
Income taxes paid (refunded), net	146,000	(6,000)
Supplemental noncash disclosures:
Transfers of securities from available-for-sale to held-to-maturity	1,534,713,000	0
Common stock issued in exchange for assets acquired	131,574,000	0
Loans held-for-investment transferred to loans held-for-sale	$ 22,938,000	$ 0

Nature of Business and Summary

Nature of Business and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Nature of Business and Summary of Significant Accounting Policies	Nature of Business and Summary of Significant Accounting Policies Nature of Business The accompanying consolidated financial statements include the accounts of Silvergate Capital Corporation, a Maryland corporation, and its wholly-owned subsidiary, Silvergate Bank (the “Bank”), collectively referred to as (the “Company” or “Silvergate”). The Company’s assets consist primarily of its investment in the Bank and its primary activities are conducted through the Bank. The Company is a registered bank holding company that is subject to supervision by the Board of Governors of the Federal Reserve (“Federal Reserve”). The Bank is subject to regulation by the California Department of Financial Protection and Innovation, Division of Financial Institutions (“DFPI”), and, as a Federal Reserve member bank since 2012, the Federal Reserve Bank of San Francisco (“FRB”). The Bank’s deposits are insured up to legal limits by the Federal Deposit Insurance Corporation (“FDIC”). Financial Statement Preparation and Presentation The accompanying interim consolidated financial statements have been prepared by the Company, without an audit, in accordance with the instructions to the Quarterly Report on Form 10-Q, and Rule 10-01 of Regulation S-X promulgated by the United States Securities and Exchange Commission (the “SEC”) and, therefore, do not include all information and footnotes necessary for a fair presentation of its consolidated financial statements in accordance with accounting principles generally accepted in the United States (“GAAP”). In the opinion of management, the unaudited financial information for the interim periods presented reflects all adjustments, consisting of only normal and recurring adjustments, necessary for a fair statement of the Company’s consolidated financial statements. These consolidated statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2021, included in the Company’s Annual Report on Form 10-K dated February 28, 2022. Operating results for interim periods are not necessarily indicative of operating results for an entire fiscal year. The consolidated financial statements include the accounts of the Company and all other entities in which it has a controlling financial interest. All significant intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, all references to the Company include its wholly owned subsidiaries. The accounting and reporting policies of the Company conform with GAAP and conform to predominant practices within the financial services industry. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts and the disclosure of contingent amounts in the Company’s financial statements and the accompanying notes. Actual results could materially differ from those estimates. Recently Issued Accounting Pronouncements Not Yet Effective In June 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (or “ASU”) 2016-13, Financial Instruments-Credit Losses (Topic 326) to replace the incurred loss model with an expected loss model, which is referred to as the current expected credit loss (or “CECL”) model. The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables, held to maturity debt securities, and reinsurance receivables. It also applies to off-balance sheet credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments) and net investments in leases recognized by a lessor. These amendments were initially effective for fiscal years beginning after December 15, 2019 for SEC registrants and after December 15, 2020, for Public Business Entities, or PBEs. In November 2019, the FASB issued ASU 2019-10, Financial Instruments—Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates, which finalized the delay of the effective date for smaller reporting companies, as of the ASU 2019-10 effective date, such as the Company to apply the standards related to CECL, until fiscal years beginning after December 15, 2022. For debt securities with other than temporary impairment (OTTI), the guidance will be applied prospectively. The new methodology replaces the other-than-temporary impairment model and requires the recognition of an allowance for reductions in a security’s fair value attributable to declines in credit quality, instead of a direct write-down of the security when a valuation decline is determined to be other-than-temporary. Existing purchased credit impaired (PCI) assets will be grandfathered and classified as purchased credit deteriorated (PCD) assets at the date of adoption. The asset will be grossed up for the allowance for expected credit losses for all PCD assets at the date of adoption and will continue to recognize the noncredit discount in interest income based on the yield such assets as of the adoption date. Subsequent changes in expected credit losses will be recorded through the allowance. For all other assets with the scope of CECL, the cumulative effect adjustment will be recognized in retained earnings as of the beginning of the first reporting period in which the guidance is effective. In November 2018, the FASB issued ASU 2018-19, Codification Improvements to Topic 326, Financial Instruments—Credit Losses, which clarify that receivables arising from operating leases are not within the scope of Subtopic 326-20. Instead, impairment of receivables arising from operating leases should be accounted for in accordance with Topic 842, Leases. In March 2022, the FASB issued ASU 2022-02, Financial Instruments—Credit Losses (Topic 326), Troubled Debt Restructurings and Vintage Disclosures. The amendment eliminates the accounting guidance for troubled debt restructurings by creditors in Subtopic 310-40, while enhancing disclosure requirements for certain loan refinancings and restructuring by creditors when a borrow is experiencing financial difficulty. In addition, the update requires public business entities to disclose current-period gross write-offs for financing receivables and net investment in leases by year of origination. In relation to the loan portfolio, the Company formed a CECL implementation committee in 2018 which prepared a project plan to migrate towards the adoption date. As part of the project plan, the Company contracted a third-party vendor to assist in the application and analysis of ASU 2016-13 as well as a third party vendor to perform an independent model validation. As part of this process, the Company has determined preliminary loan pool segmentation under CECL, as well as evaluated the key economic loss drivers for each segment. The Company operationalized an initial CECL model during the second quarter of 2019 and is running this preliminary CECL model alongside the existing incurred loss methodology. The Company intends to continue to refine and run the model until the expected adoption date on January 1, 2023. The Company continues to evaluate the effects of ASU 2016-13 on its financial statements and disclosures. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (or “ASU 2020-04”), which provides temporary, optional guidance to ease the potential burden in accounting for, or recognizing the effects of, the transition away from the London Interbank Offered Rate (or “LIBOR”) or other interbank offered rate (reference rates) on financial reporting. On March 5, 2021, the U.K. Financial Conduct Authority, the regulatory supervisor for ICE Benchmark Administration, the administrator of LIBOR, announced that the overnight and one, three, six and twelve month USD LIBOR will be discontinued on June 30, 2023. It was originally expected that LIBOR would be discontinued by the end of 2021. To help with the transition to new reference rates, the ASU provides optional expedients and exceptions for applying GAAP to affected contract modifications and hedge accounting relationships. The guidance is applicable only to contracts or hedge accounting relationships that reference LIBOR or another reference rate expected to be discontinued. The expedients and exceptions in this update are available to all entities starting March 12, 2020 through December 31, 2022. In January 2020, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848), which clarifies the scope of Topic 848 to include derivative instruments impacted by discounting transition. The Company has created a subcommittee of the Asset Liability Management Committee to address the LIBOR transition and phase-out issues. The Company has identified its LIBOR-based contracts that will be impacted by the transition away from of LIBOR, and is incorporating fallback language in negotiated contracts and incorporating non-LIBOR reference rate and/or fallback language in new contracts to prepare for these changes. The Company is evaluating the impact that ASU 2020-04 will have on those financial assets where LIBOR is used as an index rate. In March 2022, the SEC released Staff Accounting Bulletin No. 121 (“SAB 121”), which provided interpretive guidance regarding accounting for obligations to safeguard crypto-assets an entity holds for platform users. The interpretive guidance requires an entity to recognize a liability on its balance sheet to reflect the obligation to safeguard the crypto-assets held for its platform users, along with a corresponding asset, both of which are measured at fair value. SAB 121 also requires disclosure of the nature and amount of crypto assets being safeguarded, how the fair value is determined, an entity’s accounting policy for safeguarding liabilities and corresponding assets and may require other information about risks and uncertainties arising from the entity’s safeguarding activities. SAB 121 is effective no later than the first interim or annual period ending after June 15, 2022, with retrospective application as of the beginning of the fiscal year. The Company is evaluating the impact that SAB 121 will have on its financial statements and disclosures.

Securities

Securities	3 Months Ended
	Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Securities	Securities The following tables summarize the amortized cost, fair value of securities and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income and gross unrecognized gains and losses of available-for-sale and securities held-to-maturity at the dates indicated are as follows: March 31, 2022 Amortized Gross Gross Fair (Dollars in thousands) Available-for-sale securities U.S. Treasuries $ 34,889 $ — $ (165) $ 34,724 U.S. agency securities - excluding mortgage-backed securities 1,548,367 7,627 (7,333) 1,548,661 Residential mortgage-backed securities: Government agency mortgage-backed securities 1,781,961 62 (30,103) 1,751,920 Government agency collateralized mortgage obligation 1,385,198 1 (27,850) 1,357,349 Private-label collateralized mortgage obligation 1,342 12 (14) 1,340 Commercial mortgage-backed securities: Government agency mortgage-backed securities 1,338,333 2,360 (9,283) 1,331,410 Government agency collateralized mortgage obligation 70,839 — (60) 70,779 Private-label collateralized mortgage obligation 492,565 — (11,651) 480,914 Municipal bonds: Tax-exempt 2,900,600 65 (236,505) 2,664,160 Asset backed securities: Government sponsored student loan pools 226,738 — (4,501) 222,237 Total available-for-sale $ 9,780,832 $ 10,127 $ (327,465) $ 9,463,494 Amortized Gross Gross Fair (Dollars in thousands) Held-to-maturity securities U.S. Treasuries $ 1,245,293 $ — $ (42,488) $ 1,202,805 Residential mortgage-backed securities: Government agency mortgage-backed securities 547,423 — (34,896) 512,527 Government agency collateralized mortgage obligation 113,921 — (7,192) 106,729 Commercial mortgage-backed securities: Government agency collateralized mortgage obligation 53,408 — (5,179) 48,229 Municipal bonds: Tax-exempt 393,965 — (44,265) 349,700 Taxable 397,615 — (38,629) 358,986 Total held-to-maturity $ 2,751,625 $ — $ (172,649) $ 2,578,976 December 31, 2021 Amortized Gross Gross Fair (Dollars in thousands) Available-for-sale securities U.S. agency securities - excluding mortgage-backed securities $ 1,177,452 $ 7,320 $ (6,005) $ 1,178,767 Residential mortgage-backed securities: Government agency mortgage-backed securities 1,428,365 130 (14,378) 1,414,117 Government agency collateralized mortgage obligation 1,659,125 1,617 (15,739) 1,645,003 Private-label collateralized mortgage obligation 1,425 19 (11) 1,433 Commercial mortgage-backed securities: Government agency mortgage-backed securities 1,106,680 1,886 (4,962) 1,103,604 Government agency collateralized mortgage obligation 212,266 19 (1,370) 210,915 Private-label collateralized mortgage obligation 144,204 227 (797) 143,634 Municipal bonds: Tax-exempt 2,272,794 33,153 (8,210) 2,297,737 Taxable 403,279 341 (6,016) 397,604 Asset backed securities: Government sponsored student loan pools 233,374 97 (1,026) 232,445 Total available-for-sale $ 8,638,964 $ 44,809 $ (58,514) $ 8,625,259 During the three months ended March 31, 2022, the Company transferred, at fair value, $1.5 billion of residential mortgage-backed securities, commercial mortgage-backed securities, and municipal bonds from available-for-sale to held-to-maturity securities. The decision to re-designate the securities was based on the Company’s ability and intent to hold these securities to maturity. Factors used in assessing the ability to hold these securities to maturity were future liquidity needs and sources of funding. The related net unrealized after-tax loss of $14.1 million remained in accumulated other comprehensive income and will be amortized as a yield adjustment through earnings over the remaining life of the securities, offsetting the related net amortization of premium on the transferred securities. No gain or loss was recognized at the time of the transfer. Securities pledged for borrowings or for other purposes as required or permitted by law had a fair value of $1.2 billion as of March 31, 2022. There were no securities pledged as of December 31, 2021. At March 31, 2022, the total fair value of securities issued by one individual issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of shareholders’ equity was $275.3 million. Securities with unrealized and unrecognized losses as of the dates indicated, aggregated by investment category and length of time that individual securities have been in a continuous unrealized or unrecognized loss position, are as follows: March 31, 2022 Less than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (Dollars in thousands) Available-for-sale securities U.S. Treasuries $ 34,724 $ (165) $ — $ — $ 34,724 $ (165) U.S. agency securities - excluding mortgage-backed securities 781,759 (7,101) 12,977 (232) 794,736 (7,333) Residential mortgage-backed securities: Government agency mortgage-backed securities 1,725,830 (30,102) 68 (1) 1,725,898 (30,103) Government agency collateralized mortgage obligation 1,155,505 (24,377) 199,890 (3,473) 1,355,395 (27,850) Private-label collateralized mortgage obligation 199 (3) 421 (11) 620 (14) Commercial mortgage-backed securities: Government agency mortgage-backed securities 871,284 (9,283) — — 871,284 (9,283) Government agency collateralized mortgage obligation 62,991 (60) — — 62,991 (60) Private-label collateralized mortgage obligation 474,175 (11,513) 6,739 (138) 480,914 (11,651) Municipal bonds: Tax-exempt 2,627,812 (236,505) — — 2,627,812 (236,505) Asset backed securities: Government sponsored student loan pools 186,833 (4,054) 35,405 (447) 222,238 (4,501) $ 7,921,112 $ (323,163) $ 255,500 $ (4,302) $ 8,176,612 $ (327,465) Less than 12 Months 12 Months or More Total Fair Value Unrecognized Fair Value Unrecognized Fair Value Unrecognized (Dollars in thousands) Held-to-maturity securities U.S. Treasuries $ 1,202,805 $ (42,488) $ — $ — $ 1,202,805 $ (42,488) Residential mortgage-backed securities: Government agency mortgage-backed securities 512,527 (40,537) — — 512,527 (40,537) Government agency collateralized mortgage obligation 106,646 (10,393) — — 106,646 (10,393) Commercial mortgage-backed securities: Government agency collateralized mortgage obligation 48,229 (6,241) — — 48,229 (6,241) Municipal bonds: Tax-exempt 349,700 (48,038) — — 349,700 (48,038) Taxable 358,986 (44,164) — — 358,986 (44,164) $ 2,578,893 $ (191,861) $ — $ — $ 2,578,893 $ (191,861) December 31, 2021 Less than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (Dollars in thousands) Available-for-sale securities U.S. agency securities - excluding mortgage-backed securities $ 761,711 $ (6,005) $ — $ — $ 761,711 $ (6,005) Residential mortgage-backed securities: Government agency mortgage-backed securities 1,357,080 (14,378) 70 — 1,357,150 (14,378) Government agency collateralized mortgage obligation 1,513,388 (15,732) 650 (7) 1,514,038 (15,739) Private-label collateralized mortgage obligation — — 433 (11) 433 (11) Commercial mortgage-backed securities: Government agency mortgage-backed securities 435,055 (4,962) — — 435,055 (4,962) Government agency collateralized mortgage obligation 189,397 (1,370) — — 189,397 (1,370) Private-label collateralized mortgage obligation 98,173 (656) 6,791 (141) 104,964 (797) Municipal bonds: Tax-exempt 1,025,689 (8,210) — — 1,025,689 (8,210) Taxable 339,041 (6,016) — — 339,041 (6,016) Asset backed securities: Government sponsored student loan pools 168,204 (803) 32,783 (223) 200,987 (1,026) $ 5,887,738 $ (58,132) $ 40,727 $ (382) $ 5,928,465 $ (58,514) As indicated in the tables above, as of March 31, 2022, the Company’s investment securities had gross unrealized losses totaling approximately $519.3 million, compared to approximately $58.5 million at December 31, 2021. The Company analyzes all of its securities with an unrealized loss position. For each security, the Company analyzed the credit quality and performed a projected cash flow analysis. In analyzing the credit quality, management may consider whether the securities are issued by the federal government, its agencies or its sponsored entities, or non-governmental entities, whether downgrades by bond rating agencies have occurred, and if credit quality has deteriorated. When performing a cash flow analysis, the Company uses models that project prepayments, default rates, and loss severities on the collateral supporting the security, based on underlying loan level borrower and loan characteristics and interest rate assumptions. Based on these analyses and reviews conducted by the Company, and assisted by independent third parties, the Company determined that none of its securities required an other-than-temporary impairment charge at March 31, 2022. Management continues to expect to recover the adjusted amortized cost basis of these securities. As of March 31, 2022, the Company had 622 securities whose estimated fair value declined 4.61% from the Company’s amortized cost; at December 31, 2021, the Company had 323 securities whose estimated fair value declined 0.98% from the Company’s amortized cost. These unrealized losses on securities are primarily due to changes in market interest rates or widening of credit spreads since their purchase dates. Current unrealized losses are expected to recover as the securities approach their respective maturity dates. Management believes it will more than likely not be required to sell before recovery of the amortized cost basis. For the three months ended March 31, 2022, the Company received $432.1 million in proceeds and recognized $3.8 million of gains and $4.4 million losses on sales of available-for-sale securities. There were no sales or calls of securities for the three months ended March 31, 2021. There were no credit losses associated with our securities portfolio recognized in earnings for the three months ended March 31, 2022 and 2021. The amortized cost and estimated fair value of investment securities as of the periods presented by contractual maturity are shown below. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties. For purposes of the following table, the entire outstanding balance of residential and commercial mortgage-backed securities is categorized based on the final maturity date. March 31, December 31, Amortized Fair Amortized Fair (Dollars in thousands) Available-for-sale securities Within one year $ 34,889 $ 34,724 $ — $ — After one year through five years 1,611 1,531 2,243 2,170 After five years through ten years 1,503,068 1,502,618 1,406,395 1,401,733 After ten years 8,241,264 7,924,621 7,230,326 7,221,356 Total $ 9,780,832 $ 9,463,494 $ 8,638,964 $ 8,625,259 Held-to-maturity securities Within one year $ — $ — $ — $ — After one year through five years 1,245,293 1,202,805 — — After five years through ten years 275,375 249,523 — — After ten years 1,230,957 1,126,648 — — Total $ 2,751,625 $ 2,578,976 $ — $ —

Loans

Loans	3 Months Ended
	Mar. 31, 2022
Receivables [Abstract]
Loans	Loans The following disclosure reports the Company’s loan portfolio segments and classes. Segments are groupings of similar loans at a level in which the Company has adopted systematic methods of documentation for determining its allowance for loan and credit losses. Classes are a disaggregation of the portfolio segments. The Company’s loan portfolio segments are: Real estate. Real estate loans include loans for which the Company holds one-to-four family, multi-family, commercial and construction real property as collateral. One-to-four family real estate loans primarily consist of non-qualified single-family residential mortgage loans and purchases of loan pools. Multi-family real estate loans have been offered for the purchase or refinancing of apartment properties located primarily in the Southern California market area. Commercial real estate lending activity has historically been primarily focused on investor properties that are owned by customers with a current banking relationship. The primary risks of real estate mortgage loans include the borrower’s inability to pay, material decreases in the value of the real estate that is being held as collateral and significant increases in interest rates, which may make the real estate mortgage loan unprofitable. Real estate loans also may be adversely affected by conditions in the real estate markets or in the general economy. Commercial and industrial . Commercial and industrial loans consist of U.S. dollar denominated loans to businesses that are collateralized almost exclusively by bitcoin or U.S. dollars, also known as our core lending product, SEN Leverage. Commercial and industrial loans may also consist of loans and lines of credit to businesses that are generally collateralized by accounts receivable, inventory, equipment, loan and lease receivables and other commercial assets, and may be supported by other credit enhancements such as personal guarantees. Risks may arise from differences between expected and actual cash flows and/or liquidity levels of the borrowers, as well as the type of collateral securing these loans and the reliability of the conversion thereof to cash. Borrowers accessing SEN Leverage provide bitcoin or U.S. dollars as collateral in an amount greater than the line of credit eligible to be advanced. The Bank works with regulated digital currency exchanges and other indirect lenders, as the case may be, to both act as its collateral custodian for such loans, and to liquidate the collateral in the event of a decline in collateral coverage below levels required in the borrower’s loan agreement. At no time does the Bank directly hold the pledged bitcoin digital currency. The Bank sets collateral coverage ratios at levels intended to yield collateral liquidation proceeds in excess of the borrower’s loan amount, but the borrower remains obligated for the payment of any deficiency notwithstanding any change in the condition of the exchange, financial or otherwise. The outstanding balance of gross SEN Leverage loans was $435.0 million and $335.9 million at March 31, 2022 and December 31, 2021, respectively. Unfunded commitments on SEN Leverage loans were $635.1 million and $234.6 million at March 31, 2022 and December 31, 2021, respectively. Reverse mortgage and other. From 2012 to 2014, the Company purchased home equity conversion mortgage (“HECM”) loans (also known as reverse mortgage loans) which are a special type of home loan, for homeowners aged 62 years or older, that requires no monthly mortgage payments and allows the borrower to receive payments from the lender. Reverse mortgage loan insurance is provided by the U.S. Federal Housing Administration through the HECM program which protects lenders from losses due to non-repayment of the loans when the outstanding loan balance exceeds collateral value at the time the loan is required to be repaid. Other loans consist of consumer loans and loans secured by personal property. Mortgage warehouse. The Company’s mortgage warehouse lending division provides short-term interim funding primarily for single-family residential mortgage loans originated by mortgage bankers or other lenders. The Company holds legal title to such loans from the date they are funded by the Company until the loans are sold to secondary market investors pursuant to pre-existing take out commitments, generally within a few weeks of origination, with loan sale proceeds applied to pay down Company funding. The Company’s mortgage warehouse loans may either be held-for-investment or held-for-sale depending on the underlying contract. At March 31, 2022 and December 31, 2021, gross mortgage warehouse loans were approximately $1.0 billion and $1.1 billion, respectively. A summary of loans as of the periods presented are as follows: March 31, December 31, (Dollars in thousands) Real estate loans: One-to-four family $ 94,161 $ 105,098 Multi-family 9,368 56,751 Commercial 80,279 210,136 Construction — 7,573 Commercial and industrial 434,960 335,862 Reverse mortgage and other 1,137 1,410 Mortgage warehouse 125,435 177,115 Total gross loans held-for-investment 745,340 893,945 Deferred fees, net (1,884) 275 Total loans held-for-investment 743,456 894,220 Allowance for loan losses (4,442) (6,916) Total loans held-for-investment, net $ 739,014 $ 887,304 Total loans held-for-sale (1) $ 937,140 $ 893,194 ________________________ (1) Loans held-for-sale includes $914.2 million and $893.2 million of mortgage warehouse loans as of March 31, 2022 and December 31, 2021, respectively. At March 31, 2022 and December 31, 2021, approximately $184.9 million and $381.0 million, respectively, of the Company’s gross loans held-for-investment were collateralized by various forms of real estate, primarily located in California. Real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy. At March 31, 2022 and December 31, 2021, approximately $435.0 million and $335.9 million, respectively, of the Company’s gross loans held-for-investment was collateralized primarily by bitcoin and U.S. dollars. The loan to value ratio of these loans fluctuates in relation to value of bitcoin held as collateral, which may be volatile and there is no assurance that customers will be able to timely provide additional collateral under these loans in a scenario where the value of the bitcoin drops precipitously. The Company monitors and manages concentrations of credit risk by making loans that are diversified by collateral type, placing limits on the amounts of various categories of loans relative to total Company capital, and conducting quarterly reviews of its portfolio by collateral type, geography, and other characteristics. Recorded investment in loans excludes accrued interest receivable due to immateriality. Accrued interest on loans held-for-investment totaled approximately $2.5 million and $3.3 million at March 31, 2022 and December 31, 2021, respectively. Allowance for Loan Losses The following tables present the allocation of the allowance for loan losses, as well as the activity in the allowance by loan class, and recorded investment in loans held-for-investment as of and for the periods presented: Three Months Ended March 31, 2022 One-to Multi- Commercial Construction Commercial Reverse Mortgage Total (Dollars in thousands) Balance, December 31, 2021 $ 1,023 $ 682 $ 2,017 $ 776 $ 1,566 $ 12 $ 840 $ 6,916 Charge-offs — — — — — — — — Recoveries — — — — — — — — Provision for loan losses (223) (582) (1,542) (776) 933 (1) (283) (2,474) Balance, March 31, 2022 $ 800 $ 100 $ 475 $ — $ 2,499 $ 11 $ 557 $ 4,442 Three Months Ended March 31, 2021 One-to Multi- Commercial Construction Commercial and Reverse Mortgage Total (Dollars in thousands) Balance, December 31, 2020 $ 1,245 $ 878 $ 1,810 $ 590 $ 1,931 $ 39 $ 423 $ 6,916 Charge-offs — — — — — — — — Recoveries — — — — — — — — Provision for loan losses 389 (50) 1,441 (97) (1,571) (21) (91) — Balance, March 31, 2021 $ 1,634 $ 828 $ 3,251 $ 493 $ 360 $ 18 $ 332 $ 6,916 March 31, 2022 One-to Multi- Commercial Construction Commercial Reverse Mortgage Total (Dollars in thousands) Amount of allowance attributed to: Specifically evaluated impaired loans $ 28 $ — $ — $ — $ — $ — $ — $ 28 General portfolio allocation 772 100 475 — 2,499 11 557 4,414 Total allowance for loan losses $ 800 $ 100 $ 475 $ — $ 2,499 $ 11 $ 557 $ 4,442 Loans evaluated for impairment: Specifically evaluated $ 4,126 $ — $ 1,236 $ — $ — $ 646 $ — $ 6,008 Collectively evaluated 90,575 9,367 79,037 — 432,533 501 125,435 737,448 Total loans held-for-investment $ 94,701 $ 9,367 $ 80,273 $ — $ 432,533 $ 1,147 $ 125,435 $ 743,456 December 31, 2021 One-to Multi- Commercial Construction Commercial Reverse Mortgage Total (Dollars in thousands) Amount of allowance attributed to: Specifically evaluated impaired loans $ 29 $ — $ — $ — $ — $ — $ — $ 29 General portfolio allocation 994 682 2,017 776 1,566 12 840 6,887 Total allowance for loan losses $ 1,023 $ 682 $ 2,017 $ 776 $ 1,566 $ 12 $ 840 $ 6,916 Loans evaluated for impairment: Specifically evaluated $ 4,229 $ — $ 1,956 $ — $ — $ 923 $ — $ 7,108 Collectively evaluated 101,609 56,855 208,170 7,502 335,362 499 177,115 887,112 Total loans held-for-investment $ 105,838 $ 56,855 $ 210,126 $ 7,502 $ 335,362 $ 1,422 $ 177,115 $ 894,220 Impaired Loans The following tables provide a summary of the Company’s investment in impaired loans as of and for the periods presented: March 31, 2022 Unpaid Recorded Related (Dollars in thousands) With no related allowance recorded: Real estate loans: One-to-four family $ 3,866 $ 3,827 $ — Commercial 1,237 1,236 — Reverse mortgage and other 646 646 — 5,749 5,709 — With an allowance recorded: Real estate loans: One-to-four family 296 299 28 296 299 28 Total impaired loans $ 6,045 $ 6,008 $ 28 December 31, 2021 Unpaid Recorded Related (Dollars in thousands) With no related allowance recorded: Real estate loans: One-to-four family $ 4,616 $ 3,927 $ — Commercial 1,955 1,956 — Reverse mortgage and other 914 923 — 7,485 6,806 — With an allowance recorded: Real estate loans: One-to-four family 323 302 29 323 302 29 Total impaired loans $ 7,808 $ 7,108 $ 29 Three Months Ended March 31, 2022 2021 Average Interest Average Interest (Dollars in thousands) With no related allowance recorded: Real estate loans: One-to-four family $ 3,856 $ 17 $ 4,979 $ 77 Commercial 2,526 20 9,795 128 Commercial and industrial — — 249 5 Reverse mortgage and other 829 — 616 — 7,211 37 15,639 210 With an allowance recorded: Real estate loans: One-to-four family 300 1 64 1 Reverse mortgage and other — — 258 — 300 1 322 1 Total impaired loans $ 7,511 $ 38 $ 15,961 $ 211 For purposes of this disclosure, the unpaid principal balance is not reduced for partial charge-offs. Cash basis interest income is not materially different than interest income recognized. Nonaccrual and Past Due Loans Nonperforming loans include individually evaluated impaired loans, loans for which the accrual of interest has been discontinued and loans 90 days or more past due and still accruing interest. The following tables present by loan class the aging analysis based on contractual terms, nonaccrual loans, and the Company’s recorded investment in loans held-for-investment as of the periods presented: March 31, 2022 30-59 60-89 Greater Total Current Total Nonaccruing Loans (Dollars in thousands) Real estate loans: One-to-four family $ 210 $ 189 $ 2,776 $ 3,175 $ 91,526 $ 94,701 $ 2,986 $ — Multi-family — — — — 9,367 9,367 — — Commercial — — — — 80,273 80,273 — — Construction — — — — — — — — Commercial and industrial — — — — 432,533 432,533 — — Reverse mortgage and other — — — — 1,147 1,147 646 — Mortgage warehouse — — — — 125,435 125,435 — — Total loans held-for-investment $ 210 $ 189 $ 2,776 $ 3,175 $ 740,281 $ 743,456 $ 3,632 $ — December 31, 2021 30-59 60-89 Greater Total Current Total Nonaccruing Loans (Dollars in thousands) Real estate loans: One-to-four family $ 1,176 $ — $ 2,985 $ 4,161 $ 101,677 $ 105,838 $ 3,080 $ — Multi-family — — — — 56,855 56,855 — — Commercial — — — — 210,126 210,126 — — Construction — — — — 7,502 7,502 — — Commercial and industrial — — — — 335,362 335,362 — — Reverse mortgage and other — — — — 1,422 1,422 923 — Mortgage warehouse — — — — 177,115 177,115 — — Total loans held-for-investment $ 1,176 $ — $ 2,985 $ 4,161 $ 890,059 $ 894,220 $ 4,003 $ — Troubled Debt Restructurings A loan is identified as a troubled debt restructuring (“TDR”) when a borrower is experiencing financial difficulties and, for economic or legal reasons related to these difficulties, the Company grants a concession to the borrower in the restructuring that it would not otherwise consider. In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification. The Company has granted a concession when, as a result of the restructuring, it does not expect to collect all amounts due or within the time periods originally due under the original contract, including one or a combination of the following: a reduction of the stated interest rate of the loan; an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk; or a temporary forbearance with regard to the payment of principal or interest. All troubled debt restructurings are reviewed for potential impairment. Generally, a nonaccrual loan that is restructured remains on nonaccrual status for a minimum period of six months to demonstrate that the borrower can perform under the restructured terms. If the borrower’s performance under the new terms is not reasonably assured, the loan remains classified as a nonaccrual loan. Loans classified as TDRs are reported as impaired loans. As of March 31, 2022 and December 31, 2021, the Company had a recorded investment in TDRs of $1.7 million. The Company has allocated $28,000 of specific allowance for those loans at March 31, 2022 and $29,000 at December 31, 2021. The Company has not committed to advance additional amounts on these TDRs. No loans were modified as TDRs during the three months ended March 31, 2022 or 2021. A loan is considered to be in payment default once it is 30 days contractually past due under the modified terms. There were no loans modified as TDRs for which there was a payment default within twelve months during the three months ended March 31, 2022 or 2021. There was no provision for loan loss or charge-offs for TDR’s that subsequently defaulted during the three months ended March 31, 2022 or 2021. Credit Quality Indicators The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, collateral adequacy, credit documentation, and current economic trends, among other factors. This analysis typically includes larger, nonhomogeneous loans such as commercial real estate and commercial and industrial loans. This analysis is performed on an ongoing basis as new information is obtained. The Company uses the following definitions for risk ratings: Pass : Loans in all classes that are not adversely rated, are contractually current as to principal and interest, and are otherwise in compliance with the contractual terms of the loan agreement. Management believes that there is a low likelihood of loss related to those loans that are considered pass. Special mention : Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. Substandard : Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Doubtful : Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Loss : Credits rated as loss are charged-off. Management has no expectation of the recovery of any payments in respect of credits rated as loss. The following tables present by portfolio class the Company’s internal risk grading system as well as certain other information concerning the credit quality of the Company’s recorded investment in loans held-for-investment as of the periods presented. No assets were classified as loss or doubtful during the periods presented. Credit Risk Grades Pass Special Mention Substandard Doubtful Total (Dollars in thousands) March 31, 2022 Real estate loans: One-to-four family $ 91,166 $ 549 $ 2,986 $ — $ 94,701 Multi-family 9,367 — — — 9,367 Commercial 65,305 13,732 1,236 — 80,273 Construction — — — — — Commercial and industrial 432,533 — — — 432,533 Reverse mortgage and other 501 — 646 — 1,147 Mortgage warehouse 125,435 — — — 125,435 Total loans held-for-investment $ 724,307 $ 14,281 $ 4,868 $ — $ 743,456 Credit Risk Grades Pass Special Mention Substandard Doubtful Total (Dollars in thousands) December 31, 2021 Real estate loans: One-to-four family $ 102,307 $ 451 $ 3,080 $ — $ 105,838 Multi-family 56,855 — — — 56,855 Commercial 199,598 10,528 — — 210,126 Construction 7,502 — — — 7,502 Commercial and industrial 335,362 — — — 335,362 Reverse mortgage and other 499 — 923 — 1,422 Mortgage warehouse 177,115 — — — 177,115 Total loans held-for-investment $ 879,238 $ 10,979 $ 4,003 $ — $ 894,220 Purchases and Sales The following table presents loans held-for-investment purchased and/or sold during the year by portfolio segment: Three Months Ended March 31, 2022 2021 Purchases Sales (1) Purchases Sales (Dollars in thousands) Real estate loans: Multi-family $ — $ 54,227 $ — $ — Commercial — 155,011 — — Construction — 6,823 — — $ — $ 216,061 $ — $ — ________________________ (1) In conjunction with the loan sale during the three months ended March 31, 2022, the Company purchased a participating interest of $67.6 million of the loans sold to the buyer. Related Party Loans The Company had no outstanding balance of related party loans at March 31, 2022 and $7.7 million outstanding as of December 31, 2021. During the three months ended March 31, 2022, the Company received $7.7 million in proceeds from loan sales and principal payments.

FHLB Advances and Other Borrowi

FHLB Advances and Other Borrowings	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
FHLB Advances and Other Borrowings	FHLB Advances and Other Borrowings Federal Home Loan Bank (“FHLB”) Advances The following table sets forth certain information on our FHLB advances during the period presented: Three Months Ended Year Ended (Dollars in thousands) Amount outstanding at period-end $ 800,000 $ — Weighted average interest rate at period-end 0.43 % — FHLB advances or borrowing capacity can be secured with eligible collateral consisting of qualifying real estate loans or certain securities. Advances from the FHLB are subject to the FHLB’s collateral and underwriting requirements and as of March 31, 2022 and December 31, 2021, were limited in the aggregate to 35% of the Bank’s total assets. Loans and securities of approximately $2.4 billion and $1.4 billion were pledged to the FHLB as of March 31, 2022 and December 31, 2021, respectively. Unused borrowing capacity based on the lesser of the percentage of total assets and pledged collateral was approximately $1.2 billion and $1.0 billion as of March 31, 2022 and December 31, 2021, respectively. FRB Advances The Bank is also approved to borrow through the Discount Window of the Federal Reserve Bank of San Francisco on a collateralized basis without any fixed dollar limit. Loans with a carrying value of approximately $5.2 million and $6.0 million were pledged to the FRB at March 31, 2022 and December 31, 2021, respectively. The Bank’s borrowing capacity under the Federal Reserve’s discount window program was approximately $2.9 million and $5.2 million as of March 31, 2022 and December 31, 2021, respectively. At March 31, 2022 and December 31, 2021, there were no FRB advances outstanding. Federal Funds Purchased The Bank may borrow up to an aggregate $108.0 million, overnight on an unsecured basis, from two of its correspondent banks. Access to these funds is subject to liquidity availability, market conditions and any negative material change in the Bank’s credit profile. As of March 31, 2022 and December 31, 2021, the Company had no outstanding balance of federal funds purchased.

Intangible Assets

Intangible Assets	3 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets On January 31, 2022 the Company entered into an Asset Purchase Agreement (the “Purchase Agreement”) under which it acquired from the Libra Association, Diem Networks US HoldCo, Inc., Diem Networks US, Inc., Diem Networks II LLC, Diem LLC, and Diem Networks LLC, (collectively, the “Sellers”) certain intellectual property and other technology assets related to running a blockchain-based payment network. The assets acquired by the Company included development, deployment and operations infrastructure and tools for running a blockchain-based payment network designed to facilitate payments for commerce and cross-border remittances as well as proprietary software elements that are critical to running a regulatory-compliant stablecoin network. The technology is currently in a pre-launch phase, and no related amortization expense has been recorded for the acquired asset. The amortization period will begin when the developed technology is available for intended use. Under the terms of the Purchase Agreement, the aggregate purchase price for the acquired assets consisted of (i) $50.0 million in cash consideration and (ii) 1,221,217 shares of the Company’s Class A common stock. The value of the total transaction consideration was $181.6 million. The Company accounted for the purchase as an asset acquisition and capitalized direct transaction costs related to the purchase of $8.4 million, bringing the total intangible asset to $190.0 million at March 31, 2022.

Subordinated Debentures, Net

Subordinated Debentures, Net	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Subordinated Debentures, Net	Subordinated Debentures, NetA trust formed by the Company issued $12.5 million of floating rate trust preferred securities in July 2001 as part of a pooled offering of such securities. The Company issued subordinated debentures to the trust in exchange for its proceeds from the offering. The debentures and related accrued interest represent substantially all of the assets of the trust. The subordinated debentures bear interest at six-month LIBOR plus 375 basis points, which adjusts every six months in January and July of each year. Interest is payable semiannually. At March 31, 2022, the interest rate for the Company’s next scheduled payment was 4.19%, based on six-month LIBOR of 0.44%. On any January 25 or July 25 the Company may redeem the 2001 subordinated debentures at 100% of principal amount plus accrued interest. The 2001 subordinated debentures mature on July 25, 2031. A second trust formed by the Company issued $3.0 million of trust preferred securities in January 2005 as part of a pooled offering of such securities. The Company issued subordinated debentures to the trust in exchange for its proceeds from the offering. The debentures and related accrued interest represent substantially all of the assets of the trust. The subordinated debentures bear interest at three-month LIBOR plus 185 basis points, which adjusts every three months. Interest is payable quarterly. At March 31, 2022, the interest rate for the Company’s next scheduled payment was 2.68%, based on three-month LIBOR of 0.83%. On the 15th day of any March, June, September, or December, the Company may redeem the 2005 subordinated debentures at 100% of principal amount plus accrued interest. The 2005 subordinated debentures mature on March 15, 2035. The Company also retained a 3% minority interest in each of these trusts which is included in subordinated debentures. The balance of the equity in the trusts is comprised of mandatorily redeemable preferred securities. The subordinated debentures may be included in Tier I capital (with certain limitations applicable) under current regulatory guidelines and interpretations. The Company has the right to defer interest payments on the subordinated debentures from time to time for a period not to exceed five years. The outstanding balance of the subordinated debentures was $15.8 million, net of $0.1 million unamortized debt issuance costs as of March 31, 2022 and December 31, 2021.

Derivative and Hedging Activiti

Derivative and Hedging Activities	3 Months Ended
	Mar. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative and Hedging Activities	Derivative and Hedging Activities The Company is exposed to certain risks relating to its ongoing business operations. The Company utilizes interest rate derivatives as part of its asset liability management strategy to help manage its interest rate risk position. The notional amount of the derivative does not represent amounts exchanged by the parties. The amount exchanged is determined by reference to the notional amount and the other terms of the individual derivative agreements. In accordance with accounting guidance, changes in the fair value of derivatives designated and that qualify as cash flow hedges are initially recorded in accumulated other comprehensive income (“AOCI”), reclassified into earnings in the same period or periods during which the hedged transaction affects earnings and is presented in the same income statement line item as the earnings effect of the hedged item. The Company assesses the effectiveness of each hedging relationship by comparing the changes in cash flows of the derivative hedging instrument with the changes in cash flows of the designated hedged transactions. For cash flow and fair value hedges, the initial fair value of hedge components excluded from the assessment of effectiveness is recognized in earnings under a systematic and rational method over the life of the hedging instrument and is presented in the same income statement line item as the earnings effect of the hedged item. Any difference between the change in the fair value of the hedge components excluded from the assessment of effectiveness and the amounts recognized in earnings is recorded as a component of other comprehensive income. For a fair value hedge, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item, are recognized in current earnings as fair values change. The change in fair value of the hedged item is recorded as a basis adjustment to the hedged assets or liabilities. The amount included as a basis adjustment would be reclassified to current earnings on a straight-line basis over the original life of the hedged item should the hedges no longer be considered effective. Interest rate swaps. In 2020, the Company entered into two pay-fixed/receive floating rate interest rate swaps (the “Swap Agreements”) for a notional amount of $14.3 million that were designated as fair value hedges of certain available-for-sale securities. The Swap Agreements were determined to be fully effective during the periods presented and therefore no amount of ineffectiveness has been included in net income. In October 2021, the Company sold the swaps and related securities, which resulted in a gain of $0.9 million related to the swaps to be recognized immediately. The gain was recorded in other noninterest income on the statement of operations. The Swap Agreements were based on three-month LIBOR and had original expiration dates in 2030 and 2031. Interest rate floors. In 2019, the Company entered into 20 interest rate floor agreements (the “Floor Agreements”) for a total notional amount of $400.0 million to hedge cash flow receipts on cash and securities or loans, if needed. The original Floor Agreements expire on various dates in April 2024 and July 2029. The Company utilizes one-month LIBOR and three-month LIBOR interest rate floors as hedges against adverse changes in cash flows on the designated cash, securities or loans attributable to fluctuations in the federal funds rate or three-month LIBOR below 2.50% or 2.25%, as applicable. The Floor Agreements were determined to be fully effective during all periods presented and, as such, no amount of ineffectiveness has been included in net income. The upfront fee paid to the counterparty in entering into these Floor Agreements was approximately $20.8 million. During the three months ended March 31, 2020, the Company sold $200.0 million of its total $400.0 million notional amount of interest rate floors for $13.0 million, which resulted in a net gain of $8.4 million, to be recognized over the weighted average remaining term of 4.1 years. The remaining agreements are one-month LIBOR floors with a strike price of 2.25% and expire in July 2029. Interest rate caps. In 2021, the Company entered into 26 interest rate cap agreements with a total notional amount of $552.8 million (“Federal Funds Rate Cap Agreements”). The Federal Funds Rate Cap Agreements are designated as fair value hedges against changes in the fair value of certain fixed rate tax-exempt municipal bonds. The Company utilizes the interest rate caps as hedges against adverse changes in interest rates on the designated securities attributable to fluctuations in the federal funds rate above 2.00%, as applicable. An increase in the benchmark interest rate hedged reduces the fair value of these assets. The Federal Funds Rate Cap Agreements expire on various dates from 2027 to 2032. The upfront fee paid to the counterparties was approximately $24.7 million. The Company expects the Federal Funds Rate Cap Agreements to remain effective during the remaining term of the respective agreements. During the three months ended March 31, 2022, the Company sold certain tax-exempt municipal bonds and $16.5 million notional amount of the related interest rate caps for $1.1 million in proceeds for the interest rate caps and recognized a gain of $0.4 million which was recognized immediately in other noninterest income on the statement of operations. In 2012, the Company entered into a $12.5 million and a $3.0 million notional forward interest rate cap agreement (the “LIBOR Cap Agreements”) to hedge its variable rate subordinated debentures. The $3.0 million LIBOR Cap Agreement matured during the three months ended March 31, 2022. The remaining $12.5 million LIBOR Cap Agreement expires July 25, 2022. The Company utilized these LIBOR Cap Agreements as hedges against adverse changes in cash flows attributable to fluctuations in three-month LIBOR beyond 0.50% for the $3.0 million subordinated debentures and six-month LIBOR beyond 0.75% for the $12.5 million subordinated debentures. The Cap Agreements were determined to be fully effective during all periods presented and, as such, no amount of ineffectiveness has been included in net income. The upfront fee paid to the counterparty in entering into these LIBOR Cap Agreements was approximately $2.5 million. The table below presents the fair value of the Company’s derivative financial instruments as well as the classification within the consolidated statements of financial condition. March 31, December 31, Balance Sheet Fair Value Balance Sheet Fair Value (Dollars in thousands) Derivatives designated as hedging instruments: Cash flow hedge interest rate floor Derivative assets $ 13,671 Derivative assets $ 18,992 Cash flow hedge interest rate cap Derivative assets — Derivative assets — Fair value hedge interest rate cap Derivative assets 32,744 Derivative assets 15,064 The following table presents the cumulative basis adjustments on hedged items designated as fair value hedges and the related amortized cost of those items as of the periods presented. Carrying Amount Cumulative Amount of Fair March 31, December 31, March 31, December 31, (Dollars in thousands) Line Item in the Statement of Financial Condition of Hedged Item: Securities available-for-sale $ 742,461 $ 697,437 $ (3,347) $ — The following table summarizes the effects of derivatives in cash flow and fair value hedging relationships designated as hedging instruments on the Company’s AOCI and consolidated statements of operations for the periods presented. Amount of Gain (Loss) Location of Gain (Loss) Amount of Gain (Loss) Three Months Ended Three Months Ended 2022 2021 2022 2021 (Dollars in thousands) Derivatives designated as hedging instruments: Cash flow hedge interest rate floor $ (857) $ (1,450) Interest income - Other interest earning assets $ 131 $ 136 Cash flow hedge interest rate floor (3,426) (5,800) Interest income - Taxable securities 1,032 1,052 Cash flow hedge interest rate cap — — Interest expense - Subordinated debentures (96) (99) Fair value hedge interest rate cap (1) 19,448 375 ________________________ (1) Represents amounts excluded from the assessment of effectiveness for which the difference between changes in fair value and periodic amortization is recorded in other comprehensive income. The Company estimates that approximately $1.6 million of net derivative gain for cash flow hedges included in AOCI will be reclassified into earnings within the next 12 months. No gain or loss was reclassified from AOCI into earnings as a result of forecasted transactions that failed to occur during the periods presented. The following table presents the effect of fair value hedge accounting on the Company’s consolidated statements of operations for the periods presented. Location and Amount of Gain or (Loss) Three Months Ended March 31, 2022 2021 Interest income - Taxable securities Interest income - Tax-exempt securities Interest income - Taxable securities Interest income - Tax-exempt securities (Dollars in thousands) Total interest income presented in the statement of operations in which the effects of fair value hedges are recorded $ 17,779 $ 13,184 $ 3,592 $ 1,695 Effects of fair value hedging relationships Interest rate contracts: Hedged items $ — $ (3,701) $ (1,072) $ (743) Derivatives designated as hedging instruments — 3,701 1,053 743 Amount excluded from effectiveness testing recognized in earnings based on amortization approach — (610) — (25)

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Comparison of the federal statutory income tax rates to the Company’s effective income tax rates for the periods presented are as follows: Three Months Ended March 31, 2022 2021 Amount Rate Amount Rate (Dollars in thousands) Statutory federal tax $ 7,222 21.0 % $ 2,415 21.0 % State tax, net of federal benefit 2,840 8.3 % (451) (3.9) % Tax credits (38) (0.1) % (41) (0.4) % Tax-exempt income, net (2,994) (8.7) % (347) (3.0) % Excess tax benefit from stock-based compensation (29) (0.1) % (3,003) (26.1) % Other items, net 14 0.0 % 216 1.9 % Actual tax expense (benefit) $ 7,015 20.4 % $ (1,211) (10.5) % Income tax expense was $7.0 million for the three months ended March 31, 2022 compared to a benefit of $1.2 million for the three months ended March 31, 2021. The effective tax rates for the three months ended March 31, 2022 and 2021 were 20.4% and (10.5)%, respectively. The tax expense and effective tax rate for the three months ended March 31, 2022 were reduced by a significant increase in tax-exempt income earned on certain municipal bonds compared to the three months ended March 31, 2021. The lower effective tax rate for the three months ended March 31, 2021 was due to higher excess tax benefits recognized on the exercise of stock options. The deferred tax asset balance as of March 31, 2022 was $97.1 million compared to $6.5 million as of December 31, 2021. The increase in the deferred tax asset is attributable to the unrealized losses on the available-for-sale securities portfolio.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Off-Balance Sheet Items In the normal course of business, the Company enters into various transactions, which, in accordance with GAAP, are not included in the consolidated statements of financial condition. The Company enters into these transactions to meet the financing needs of its customers. These transactions include commitments to extend credit and issue letters of credit, which involve, to varying degrees, elements of credit risk and interest rate risk exceeding the amounts recognized on the consolidated statements of financial condition. The Company’s exposure to credit loss is represented by the contractual amounts of these commitments. The same credit policies and procedures are used in making these commitments as for on-balance sheet instruments. The Company is not aware of any accounting loss to be incurred by funding these commitments, however, an allowance for off-balance sheet credit risk is recorded in other liabilities on the statements of financial condition. The allowance for these commitments amounted to approximately $1.6 million and $0.6 million at March 31, 2022 and December 31, 2021, respectively. The Company’s commitments associated with outstanding letters of credit and commitments to extend credit expiring by period as of the date indicated are summarized below. Since commitments associated with letters of credit and commitments to extend credit may expire unused, the amounts shown do not necessarily reflect the actual future cash funding requirements. March 31, December 31, (Dollars in thousands) Unfunded lines of credit $ 643,609 $ 248,092 Letters of credit 821 484 Total credit extension commitments $ 644,430 $ 248,576 Unfunded lines of credit represent unused credit facilities to the Company’s current borrowers that represent no change in credit risk that exist in the Company’s portfolio. Lines of credit generally have variable interest rates. Letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. In the event of nonperformance by the customer in accordance with the terms of the agreement with the third party, the Company would be required to fund the commitment. The maximum potential amount of future payments the Company could be required to make is represented by the contractual amount of the commitment. If the commitment is funded, the Company would be entitled to seek recovery from the client from the underlying collateral, which can include commercial real estate, physical plant and property, inventory, receivables, bitcoin, cash and/or marketable securities. The Company’s policies generally require that letter of credit arrangements contain security and debt covenants like those contained in loan agreements and our credit risk associated with issuing letters of credit is essentially the same as the risk involved in extending loan facilities to customers. The Company minimizes its exposure to loss under letters of credit and credit commitments by subjecting them to the same credit approval and monitoring procedures used for on-balance sheet instruments. The effect on the Company’s revenue, expenses, cash flows and liquidity of the unused portions of these letters of credit commitments cannot be precisely predicted because there is no guarantee that the lines of credit will be used. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract, for a specific purpose. Commitments generally have variable interest rates, fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts disclosed above do not necessarily represent future cash requirements. The Company evaluates each customer’s credit worthiness on a case-by-case basis. The amount of collateral obtained if deemed necessary by the Company is based on management’s credit evaluation of the customer. Litigation The Company is involved in various matters of litigation which have arisen in the ordinary course of its business. In the opinion of management, the disposition of such pending litigation will not have a material adverse effect on the Company’s financial statements.

Stock-based Compensation

Stock-based Compensation	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Stock-based Compensation	Stock-based Compensation In June 2018, the Company adopted the 2018 Equity Compensation Plan, or 2018 Plan, that permits the Compensation Committee, in its sole discretion, to grant various forms of incentive awards. Under the 2018 Plan, the Compensation Committee has the power to grant stock options, stock appreciation rights, or SARs, restricted stock and restricted stock units. The number of shares that may be issued pursuant to awards under the 2018 Plan is 1,596,753. In accordance with authoritative guidance for stock-based compensation, compensation expense is recognized only for those shares expected to vest, based on the Company’s historical experience and future expectations. The Company has elected a policy of estimating expected forfeitures. Total stock-based compensation expense was $0.7 million and $0.3 million for the three months ended March 31, 2022 and 2021, respectively. Stock Options A summary of stock option activity as of March 31, 2022 and changes during the three months ended March 31, 2022 is presented below: Number of Weighted Weighted Average Remaining Contractual Life (in years) Aggregate Intrinsic Value (in thousands) Outstanding at January 1, 2022 191,191 $ 24.97 Granted 29,117 110.84 Exercised (1,840) 16.09 Forfeited or expired (1,511) 16.09 Outstanding at March 31, 2022 216,957 $ 36.63 7.3 years $ 24,720 Exercisable at March 31, 2022 99,654 $ 19.28 6.0 years $ 13,083 Vested or Expected to Vest at March 31, 2022 209,715 $ 36.34 7.2 years $ 23,956 As of March 31, 2022, there was $2.2 million of total unrecognized compensation cost related to nonvested stock options which is expected to be recognized over a weighted-average period of 2.4 years. Restricted Stock Units A summary of the status of the Company’s nonvested restricted stock unit awards as of March 31, 2022, and changes during the three months ended March 31, 2022, is presented below: Number of Shares Weighted-Average Nonvested at January 1, 2022 56,871 $ 72.53 Granted 43,165 $ 110.84 Vested (7,128) $ 122.91 Forfeited (1,029) $ 71.99 Nonvested at March 31, 2022 91,879 $ 86.63 At March 31, 2022, there was approximately $6.1 million of total unrecognized compensation expense related to nonvested restricted stock unit awards, which is expected to be recognized over a weighted-average period of 2.6 years.

Regulatory Capital

Regulatory Capital	3 Months Ended
	Mar. 31, 2022
Regulated Operations [Abstract]
Regulatory Capital	Regulatory Capital Banks and bank holding companies are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action. The final rules implementing Basel Committee on Banking Supervision’s capital guidelines for U.S. banks (Basel III rules) became effective for the Company on January 1, 2015 with full compliance with all of the requirements being phased in over a multi-year schedule, and fully phased in by January 1, 2019. Under the Basel III rules, the Company must hold a capital conservation buffer above the adequately capitalized risk-based capital ratios. As of January 1, 2019, the capital conservation buffer had fully phased in to 2.50%. Inclusive of the fully phased-in capital conservation buffer, the common equity tier 1 capital ratio, tier 1 risk-based capital ratio and total risk-based capital ratio minimums are 7.00%, 8.50% and 10.50%, respectively. The Company and the Bank’s regulatory capital reflects the one-time AOCI opt-out election made in the first reporting period after it was subject to capital requirements and therefore the net unrealized gain or loss on available for sale securities and derivatives are not included in computing regulatory capital. Management believes, as of March 31, 2022, the Company and the Bank met all capital adequacy requirements to which they were subject. Prompt corrective action regulations provide five classifications: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized, although these terms are not used to represent overall financial condition. If adequately capitalized, regulatory approval is required to accept brokered deposits. If undercapitalized, capital distributions are limited, as is asset growth and expansion, and capital restoration plans are required. For the periods presented, the most recent regulatory notifications categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. There are no conditions or events since that notification that management believes have changed the institution’s category. Actual capital amounts and ratios for the Company and the Bank as of March 31, 2022 and December 31, 2021, are presented in the following tables: Actual Minimum capital adequacy (1) To be well Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) March 31, 2022 The Company Tier 1 leverage ratio $ 1,597,946 9.68 % $ 660,633 4.00 % N/A N/A Common equity tier 1 capital ratio 1,388,825 38.97 % 160,360 4.50 % N/A N/A Tier 1 risk-based capital ratio 1,597,946 44.84 % 213,813 6.00 % N/A N/A Total risk-based capital ratio 1,603,983 45.01 % 285,084 8.00 % N/A N/A The Bank Tier 1 leverage ratio 1,577,199 9.51 % 663,196 4.00 % $ 828,995 5.00 % Common equity tier 1 capital ratio 1,577,199 44.28 % 160,273 4.50 % 231,505 6.50 % Tier 1 risk-based capital ratio 1,577,199 44.28 % 213,697 6.00 % 284,929 8.00 % Total risk-based capital ratio 1,583,236 44.45 % 284,929 8.00 % 356,161 10.00 % Actual Minimum capital adequacy (1) To be well Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) December 31, 2021 The Company Tier 1 leverage ratio $ 1,631,257 11.07 % $ 589,614 4.00 % N/A N/A Common equity tier 1 capital ratio 1,422,136 49.53 % 129,198 4.50 % N/A N/A Tier 1 risk-based capital ratio 1,631,257 56.82 % 172,264 6.00 % N/A N/A Total risk-based capital ratio 1,638,794 57.08 % 229,686 8.00 % N/A N/A The Bank Tier 1 leverage ratio 1,546,693 10.49 % 589,595 4.00 % $ 736,994 5.00 % Common equity tier 1 capital ratio 1,546,693 53.89 % 129,162 4.50 % 186,567 6.50 % Tier 1 risk-based capital ratio 1,546,693 53.89 % 172,216 6.00 % 229,622 8.00 % Total risk-based capital ratio 1,554,230 54.15 % 229,622 8.00 % 287,027 10.00 % ________________________ (1) Minimum capital adequacy for common equity tier 1 capital ratio, tier 1 risk-based capital ratio and total risk-based capital ratio excludes the capital conservation buffer. The Bank is restricted as to the amount of dividends that it can pay to the Company. Dividends declared in excess of the lesser of the Bank’s undivided profits or the Bank’s net income for its last three fiscal years less the amount of any distribution made to the Bank’s shareholder during the same period must be approved by the California DFPI. Also, the Bank may not pay dividends that would result in capital levels being reduced below the minimum requirements shown above.

Fair Value

Fair Value	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. This standard’s fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value: Level 1— Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. Level 2— Significant observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3— Significant unobservable inputs that reflect a Company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability. Financial Instruments Required To Be Carried At Fair Value The following is a description of valuation methodologies used for assets and liabilities recorded at fair value: Securities . The fair values of securities available-for-sale and trading securities are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1). For securities where quoted prices are not available, fair values are calculated based on market prices of similar securities (Level 2), using matrix pricing. Matrix pricing is a mathematical technique commonly used to price debt securities that are not actively traded, which values debt securities without relying exclusively on quoted prices for specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs). Derivatives . The Company’s derivative assets and liabilities are carried at fair value as required by GAAP. The estimated fair values of the derivative assets and liabilities are based on current market prices for similar instruments. Given the meaningful level of secondary market activity for derivative contracts, active pricing is available for similar assets and accordingly, the Company classifies its derivative assets and liabilities as Level 2. Impaired loans (collateral-dependent) . The Company does not record impaired loans at fair value on a recurring basis. However, from time to time, fair value adjustments are recorded on these loans to reflect (1) partial write-downs, through charge-offs or specific allowances, that are based on the current appraised or market-quoted value of the underlying collateral or (2) the full charge-off of the loan carrying value. In some cases, the properties for which market quotes or appraised values have been obtained are located in areas where comparable sales data is limited, outdated, or unavailable. Fair value estimates for collateral-dependent impaired loans are obtained from real estate brokers or other third-party consultants. These appraisals may utilize a single valuation approach or a combination of approaches, which generally include various Level 3 inputs. Adjustments are routinely made in the appraisal process by the appraisers to adjust for differences between the comparable sales and income data available and such adjustments are typically significant. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary. Impaired loans presented in the table below as of the periods presented include impaired loans with specific allowances as well as impaired loans that have been partially charged-off. The following tables provide the hierarchy and fair value for each class of assets and liabilities measured at fair value for the periods presented. As of March 31, 2022 and December 31, 2021, assets and liabilities measured at fair value on a recurring basis are as follows: Fair Value Measurements Using Quoted Prices Significant Other Significant Level 1 Level 2 Level 3 Total (Dollars in thousands) March 31, 2022 Assets Securities available-for-sale $ 176,343 $ 9,287,151 $ — $ 9,463,494 Derivative assets — 46,415 — 46,415 $ 176,343 $ 9,333,566 $ — $ 9,509,909 Fair Value Measurements Using Quoted Prices Significant Other Significant Level 1 Level 2 Level 3 Total (Dollars in thousands) December 31, 2021 Assets Securities available-for-sale $ — $ 8,625,259 $ — $ 8,625,259 Derivative assets — 34,056 — 34,056 $ — $ 8,659,315 $ — $ 8,659,315 There were no assets measured at fair value on a nonrecurring basis as of March 31, 2022 and December 31, 2021. Financial Instruments Not Required To Be Carried At Fair Value FASB ASC Topic 825, Financial Instruments , requires the disclosure of the estimated fair value of financial instruments. The Company’s estimated fair value amounts have been determined by the Company using available market information and appropriate valuation methodologies. However, considerable judgment is required to develop the estimates of fair value. Accordingly, the estimates are not necessarily indicative of the amounts the Company could have realized in a current market exchange. The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts. The following tables present information about the Company’s assets and liabilities that are not measured at fair value in the consolidated statements of financial condition as of the dates presented: Carrying Fair Value Measurements Using Level 1 Level 2 Level 3 Total (Dollars in thousands) March 31, 2022 Financial assets: Cash and due from banks $ 207,304 $ 207,304 $ — $ — $ 207,304 Interest earning deposits 1,178,205 1,178,205 — — 1,178,205 Securities held-to-maturity 2,751,625 1,202,805 1,376,171 — 2,578,976 Loans held-for-sale 937,140 — 937,140 — 937,140 Loans held-for-investment, net 739,014 — — 742,784 742,784 Accrued interest receivable 62,573 158 17,070 45,345 62,573 Financial liabilities: Deposits $ 13,396,162 $ — $ 12,839,700 $ — $ 12,839,700 FHLB advances 800,000 — 800,000 — 800,000 Subordinated debentures, net 15,848 — 15,745 — 15,745 Accrued interest payable 111 — 111 — 111 Carrying Fair Value Measurements Using Level 1 Level 2 Level 3 Total (Dollars in thousands) December 31, 2021 Financial assets: Cash and due from banks $ 208,193 $ 208,193 $ — $ — $ 208,193 Interest earning deposits 5,179,753 5,179,753 — — 5,179,753 Loans held-for-sale 893,194 — 893,194 — 893,194 Loans held-for-investment, net 887,304 — — 891,166 891,166 Accrued interest receivable 40,370 41 8,980 31,349 40,370 Financial liabilities: Deposits $ 14,290,628 $ — $ 14,167,200 $ — $ 14,167,200 Subordinated debentures, net 15,845 — 15,646 — 15,646 Accrued interest payable 223 — 223 — 223

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The computation of basic and diluted earnings per share is shown below. Three Months Ended 2022 2021 (In thousands, except per share data) Basic Net income $ 27,386 $ 12,710 Less: Dividends paid to preferred shareholders 2,688 — Net income available to common shareholders $ 24,698 $ 12,710 Weighted average common shares outstanding 31,219 22,504 Basic earnings per common share $ 0.79 $ 0.56 Diluted Net income available to common shareholders $ 24,698 $ 12,710 Weighted average common shares outstanding for basic earnings per common share 31,219 22,504 Add: Dilutive effects of stock-based awards 182 506 Average shares and dilutive potential common shares 31,401 23,010 Dilutive earnings per common share $ 0.79 $ 0.55 Stock-based awards for 48,000 and 44,000 shares of common stock for the three months ended March 31, 2022 and 2021, respectively, were excluded from the computation of diluted earnings per share, because they were anti-dilutive.

Shareholders' Equity

Shareholders' Equity	3 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Shareholders' Equity	Shareholders’ Equity The Company’s Articles of Incorporation, as amended, or Articles, authorize the Company to issue up to (i) 125,000,000 shares of Class A Common Stock, par value $0.01 per share (“Class A Common Stock”), (ii) 25,000,000 shares of Class B Non-Voting Common Stock, par value $0.01 per share (“Class B Non-Voting Common Stock”), and (iii) 10,000,000 shares of Preferred Stock, par value $0.01 per share. Preferred Stock The Company, upon authorization of the board of directors, may issue shares of one or more series of preferred stock from time to time. The board of directors may, without any action by holders of Class A and Class B Common Stock or, except as may be otherwise provided in the terms of any series of preferred stock of which there are shares outstanding, holders of preferred stock adopt resolutions to designate and establish a new series of preferred stock. Upon establishing such a series of preferred stock, the board will determine the number of shares of preferred stock of that series that may be issued and the rights and preferences of that series of preferred stock. The rights of any series of preferred stock may include, among others, general or special voting rights; preferential liquidation or preemptive rights; preferential cumulative or noncumulative dividend rights; redemption or put rights; and conversion or exchange rights. On August 4, 2021, the Company issued and sold 8,000,000 depositary shares (the “Depositary Shares”), each representing a 1/40th interest in a share of 5.375% Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A, par value $0.01 per share (the “Series A Preferred Stock”), with a liquidation preference of $1,000 per share of Series A Preferred Stock, equivalent to $25 per Depositary Share. The aggregate gross proceeds of the offering were $200.0 million and net proceeds to the Company were approximately $193.6 million after deducting underwriting discounts and offering expenses. When, as and if declared by the board of directors of the Company, or a duly authorized board committee, dividends will be payable from the date of issuance, quarterly in arrears, beginning on November 15, 2021. The Company may redeem the Series A Preferred Stock at its option, subject to regulatory approval, on or after August 15, 2026. Preferred Stock Dividend On October 14, 2021, the Company’s Board of Directors declared the first quarterly dividend payment of $15.08 per share, equivalent to $0.377 per depositary share, on its Series A Preferred Stock, for the period covering August 4, 2021 through November 14, 2021 for a total dividend of $3.0 million. The depositary shares representing the Series A Preferred Stock are traded on the New York Stock Exchange under the symbol “SI PRA.” The dividend was paid on November 15, 2021 to shareholders of record of the preferred stock as of October 29, 2021. On January 14, 2022, the Company’s Board of Directors declared a quarterly dividend payment of $13.44 per share, equivalent to $0.336 per depositary share, on its Series A Preferred Stock, for the period covering November 15, 2021 through February 14, 2022 for a total dividend of $2.7 million. The depositary shares representing the Series A Preferred Stock are traded on the New York Stock Exchange under the symbol “SI PRA.” The dividend was paid on February 15, 2022 to shareholders of record of the preferred stock as of January 31, 2022. Common Stock Class A Voting Common Stock . Each holder of Class A Common Stock is entitled to one vote for each share on all matters submitted to a vote of shareholders, except as otherwise required by law and subject to the rights and preferences of the holders of any outstanding shares of our preferred stock. The members of the Company’s board of directors are elected by a plurality of the votes cast. The Company’s Articles expressly prohibit cumulative voting. Class B Non-Voting Common Stock. Class B Non-Voting Common Stock is non-voting while held by the initial holder with certain limited exceptions. Each share of Class B Non-Voting Common Stock will automatically convert into a share of Class A Common Stock upon certain sales or transfers by the initial holder of such shares including to an unaffiliated third-party and in a widely dispersed public offering. If Class B Non-Voting Common Stock is sold or transferred to an affiliate of the initial holder, the Class B Non-Voting Common Stock would not convert into Class A Common Stock. On January 26, 2021, the Company completed its underwritten public offering of 4,563,493 shares of Class A common stock at a price of $63.00 per share, including 595,238 shares of Class A common stock upon the exercise in full by the underwriters of their option to purchase additional shares. The aggregate gross proceeds of the offering were $287.5 million and net proceeds to the Company were $272.4 million after deducting underwriting discounts and offering expenses. On March 9, 2021, the Company entered into an equity distribution agreement pursuant to which the Company could issue and sell, from time to time, up to an aggregate gross sales price of $300.0 million of the Company’s shares of Class A common stock through an “at-the-market” equity offering program, or ATM Offering. As of June 30, 2021, the Company had completed the ATM Offering with a total of 2,793,826 shares of Class A common stock sold at an average price of $107.38. The transactions resulted in net proceeds to the Company of $295.1 million after deducting commissions and expenses. On December 9, 2021, the Company completed its underwritten public offering of 3,806,895 shares of Class A common stock at a price of $145.00 per share, including 496,551 shares of Class A common stock upon the exercise in full by the underwriters of their option to purchase additional shares. The aggregate gross proceeds of the offering were $552.0 million and net proceeds to the Company were $530.3 million after deducting underwriting discounts and offering expenses. On January 31, 2022 the Company issued 1,221,217 shares of the Company’s Class A common stock to the Sellers for the purchase of certain technology assets, at a price of $107.74 per share for a total value of $131.6 million.

Subsequent Event

Subsequent Event	3 Months Ended
	Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event Preferred Stock Dividend On April 11, 2022, the Company’s Board of Directors declared a quarterly dividend payment of $13.44 per share, equivalent to $0.336 per depositary share, on its Series A Preferred Stock, for the period covering February 15, 2022 through May 14, 2022, for a total dividend of $2.7 million. The depositary shares representing the Series A Preferred Stock are traded on the New York Stock Exchange under the symbol “SI PRA.” The dividend will be payable on May 16, 2022 to shareholders of record of the Series A Preferred Stock as of April 29, 2022.

Nature of Business and Summar_2

Nature of Business and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Financial Statement Preparation and Presentation	Financial Statement Preparation and Presentation The accompanying interim consolidated financial statements have been prepared by the Company, without an audit, in accordance with the instructions to the Quarterly Report on Form 10-Q, and Rule 10-01 of Regulation S-X promulgated by the United States Securities and Exchange Commission (the “SEC”) and, therefore, do not include all information and footnotes necessary for a fair presentation of its consolidated financial statements in accordance with accounting principles generally accepted in the United States (“GAAP”). In the opinion of management, the unaudited financial information for the interim periods presented reflects all adjustments, consisting of only normal and recurring adjustments, necessary for a fair statement of the Company’s consolidated financial statements. These consolidated statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2021, included in the Company’s Annual Report on Form 10-K dated February 28, 2022. Operating results for interim periods are not necessarily indicative of operating results for an entire fiscal year.
Consolidation	The consolidated financial statements include the accounts of the Company and all other entities in which it has a controlling financial interest. All significant intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, all references to the Company include its wholly owned subsidiaries. The accounting and reporting policies of the Company conform with GAAP and conform to predominant practices within the financial services industry.
Use of Estimates	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts and the disclosure of contingent amounts in the Company’s financial statements and the accompanying notes. Actual results could materially differ from those estimates.
Recently Issued Accounting Pronouncements Not Yet Effective	Recently Issued Accounting Pronouncements Not Yet Effective In June 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (or “ASU”) 2016-13, Financial Instruments-Credit Losses (Topic 326) to replace the incurred loss model with an expected loss model, which is referred to as the current expected credit loss (or “CECL”) model. The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables, held to maturity debt securities, and reinsurance receivables. It also applies to off-balance sheet credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments) and net investments in leases recognized by a lessor. These amendments were initially effective for fiscal years beginning after December 15, 2019 for SEC registrants and after December 15, 2020, for Public Business Entities, or PBEs. In November 2019, the FASB issued ASU 2019-10, Financial Instruments—Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates, which finalized the delay of the effective date for smaller reporting companies, as of the ASU 2019-10 effective date, such as the Company to apply the standards related to CECL, until fiscal years beginning after December 15, 2022. For debt securities with other than temporary impairment (OTTI), the guidance will be applied prospectively. The new methodology replaces the other-than-temporary impairment model and requires the recognition of an allowance for reductions in a security’s fair value attributable to declines in credit quality, instead of a direct write-down of the security when a valuation decline is determined to be other-than-temporary. Existing purchased credit impaired (PCI) assets will be grandfathered and classified as purchased credit deteriorated (PCD) assets at the date of adoption. The asset will be grossed up for the allowance for expected credit losses for all PCD assets at the date of adoption and will continue to recognize the noncredit discount in interest income based on the yield such assets as of the adoption date. Subsequent changes in expected credit losses will be recorded through the allowance. For all other assets with the scope of CECL, the cumulative effect adjustment will be recognized in retained earnings as of the beginning of the first reporting period in which the guidance is effective. In November 2018, the FASB issued ASU 2018-19, Codification Improvements to Topic 326, Financial Instruments—Credit Losses, which clarify that receivables arising from operating leases are not within the scope of Subtopic 326-20. Instead, impairment of receivables arising from operating leases should be accounted for in accordance with Topic 842, Leases. In March 2022, the FASB issued ASU 2022-02, Financial Instruments—Credit Losses (Topic 326), Troubled Debt Restructurings and Vintage Disclosures. The amendment eliminates the accounting guidance for troubled debt restructurings by creditors in Subtopic 310-40, while enhancing disclosure requirements for certain loan refinancings and restructuring by creditors when a borrow is experiencing financial difficulty. In addition, the update requires public business entities to disclose current-period gross write-offs for financing receivables and net investment in leases by year of origination. In relation to the loan portfolio, the Company formed a CECL implementation committee in 2018 which prepared a project plan to migrate towards the adoption date. As part of the project plan, the Company contracted a third-party vendor to assist in the application and analysis of ASU 2016-13 as well as a third party vendor to perform an independent model validation. As part of this process, the Company has determined preliminary loan pool segmentation under CECL, as well as evaluated the key economic loss drivers for each segment. The Company operationalized an initial CECL model during the second quarter of 2019 and is running this preliminary CECL model alongside the existing incurred loss methodology. The Company intends to continue to refine and run the model until the expected adoption date on January 1, 2023. The Company continues to evaluate the effects of ASU 2016-13 on its financial statements and disclosures. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (or “ASU 2020-04”), which provides temporary, optional guidance to ease the potential burden in accounting for, or recognizing the effects of, the transition away from the London Interbank Offered Rate (or “LIBOR”) or other interbank offered rate (reference rates) on financial reporting. On March 5, 2021, the U.K. Financial Conduct Authority, the regulatory supervisor for ICE Benchmark Administration, the administrator of LIBOR, announced that the overnight and one, three, six and twelve month USD LIBOR will be discontinued on June 30, 2023. It was originally expected that LIBOR would be discontinued by the end of 2021. To help with the transition to new reference rates, the ASU provides optional expedients and exceptions for applying GAAP to affected contract modifications and hedge accounting relationships. The guidance is applicable only to contracts or hedge accounting relationships that reference LIBOR or another reference rate expected to be discontinued. The expedients and exceptions in this update are available to all entities starting March 12, 2020 through December 31, 2022. In January 2020, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848), which clarifies the scope of Topic 848 to include derivative instruments impacted by discounting transition. The Company has created a subcommittee of the Asset Liability Management Committee to address the LIBOR transition and phase-out issues. The Company has identified its LIBOR-based contracts that will be impacted by the transition away from of LIBOR, and is incorporating fallback language in negotiated contracts and incorporating non-LIBOR reference rate and/or fallback language in new contracts to prepare for these changes. The Company is evaluating the impact that ASU 2020-04 will have on those financial assets where LIBOR is used as an index rate. In March 2022, the SEC released Staff Accounting Bulletin No. 121 (“SAB 121”), which provided interpretive guidance regarding accounting for obligations to safeguard crypto-assets an entity holds for platform users. The interpretive guidance requires an entity to recognize a liability on its balance sheet to reflect the obligation to safeguard the crypto-assets held for its platform users, along with a corresponding asset, both of which are measured at fair value. SAB 121 also requires disclosure of the nature and amount of crypto assets being safeguarded, how the fair value is determined, an entity’s accounting policy for safeguarding liabilities and corresponding assets and may require other information about risks and uncertainties arising from the entity’s safeguarding activities. SAB 121 is effective no later than the first interim or annual period ending after June 15, 2022, with retrospective application as of the beginning of the fiscal year. The Company is evaluating the impact that SAB 121 will have on its financial statements and disclosures.
Financial Instruments Required To Be Carried At Fair Value	Financial Instruments Required To Be Carried At Fair Value The following is a description of valuation methodologies used for assets and liabilities recorded at fair value: Securities . The fair values of securities available-for-sale and trading securities are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1). For securities where quoted prices are not available, fair values are calculated based on market prices of similar securities (Level 2), using matrix pricing. Matrix pricing is a mathematical technique commonly used to price debt securities that are not actively traded, which values debt securities without relying exclusively on quoted prices for specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs). Derivatives . The Company’s derivative assets and liabilities are carried at fair value as required by GAAP. The estimated fair values of the derivative assets and liabilities are based on current market prices for similar instruments. Given the meaningful level of secondary market activity for derivative contracts, active pricing is available for similar assets and accordingly, the Company classifies its derivative assets and liabilities as Level 2. Impaired loans (collateral-dependent) .

Securities (Tables)

Securities (Tables)	3 Months Ended
	Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Schedule of Securities and Gross Unrealized Gains and Losses	The following tables summarize the amortized cost, fair value of securities and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income and gross unrecognized gains and losses of available-for-sale and securities held-to-maturity at the dates indicated are as follows: March 31, 2022 Amortized Gross Gross Fair (Dollars in thousands) Available-for-sale securities U.S. Treasuries $ 34,889 $ — $ (165) $ 34,724 U.S. agency securities - excluding mortgage-backed securities 1,548,367 7,627 (7,333) 1,548,661 Residential mortgage-backed securities: Government agency mortgage-backed securities 1,781,961 62 (30,103) 1,751,920 Government agency collateralized mortgage obligation 1,385,198 1 (27,850) 1,357,349 Private-label collateralized mortgage obligation 1,342 12 (14) 1,340 Commercial mortgage-backed securities: Government agency mortgage-backed securities 1,338,333 2,360 (9,283) 1,331,410 Government agency collateralized mortgage obligation 70,839 — (60) 70,779 Private-label collateralized mortgage obligation 492,565 — (11,651) 480,914 Municipal bonds: Tax-exempt 2,900,600 65 (236,505) 2,664,160 Asset backed securities: Government sponsored student loan pools 226,738 — (4,501) 222,237 Total available-for-sale $ 9,780,832 $ 10,127 $ (327,465) $ 9,463,494 Amortized Gross Gross Fair (Dollars in thousands) Held-to-maturity securities U.S. Treasuries $ 1,245,293 $ — $ (42,488) $ 1,202,805 Residential mortgage-backed securities: Government agency mortgage-backed securities 547,423 — (34,896) 512,527 Government agency collateralized mortgage obligation 113,921 — (7,192) 106,729 Commercial mortgage-backed securities: Government agency collateralized mortgage obligation 53,408 — (5,179) 48,229 Municipal bonds: Tax-exempt 393,965 — (44,265) 349,700 Taxable 397,615 — (38,629) 358,986 Total held-to-maturity $ 2,751,625 $ — $ (172,649) $ 2,578,976 December 31, 2021 Amortized Gross Gross Fair (Dollars in thousands) Available-for-sale securities U.S. agency securities - excluding mortgage-backed securities $ 1,177,452 $ 7,320 $ (6,005) $ 1,178,767 Residential mortgage-backed securities: Government agency mortgage-backed securities 1,428,365 130 (14,378) 1,414,117 Government agency collateralized mortgage obligation 1,659,125 1,617 (15,739) 1,645,003 Private-label collateralized mortgage obligation 1,425 19 (11) 1,433 Commercial mortgage-backed securities: Government agency mortgage-backed securities 1,106,680 1,886 (4,962) 1,103,604 Government agency collateralized mortgage obligation 212,266 19 (1,370) 210,915 Private-label collateralized mortgage obligation 144,204 227 (797) 143,634 Municipal bonds: Tax-exempt 2,272,794 33,153 (8,210) 2,297,737 Taxable 403,279 341 (6,016) 397,604 Asset backed securities: Government sponsored student loan pools 233,374 97 (1,026) 232,445 Total available-for-sale $ 8,638,964 $ 44,809 $ (58,514) $ 8,625,259
Schedule of Securities with Unrealized Losses	Securities with unrealized and unrecognized losses as of the dates indicated, aggregated by investment category and length of time that individual securities have been in a continuous unrealized or unrecognized loss position, are as follows: March 31, 2022 Less than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (Dollars in thousands) Available-for-sale securities U.S. Treasuries $ 34,724 $ (165) $ — $ — $ 34,724 $ (165) U.S. agency securities - excluding mortgage-backed securities 781,759 (7,101) 12,977 (232) 794,736 (7,333) Residential mortgage-backed securities: Government agency mortgage-backed securities 1,725,830 (30,102) 68 (1) 1,725,898 (30,103) Government agency collateralized mortgage obligation 1,155,505 (24,377) 199,890 (3,473) 1,355,395 (27,850) Private-label collateralized mortgage obligation 199 (3) 421 (11) 620 (14) Commercial mortgage-backed securities: Government agency mortgage-backed securities 871,284 (9,283) — — 871,284 (9,283) Government agency collateralized mortgage obligation 62,991 (60) — — 62,991 (60) Private-label collateralized mortgage obligation 474,175 (11,513) 6,739 (138) 480,914 (11,651) Municipal bonds: Tax-exempt 2,627,812 (236,505) — — 2,627,812 (236,505) Asset backed securities: Government sponsored student loan pools 186,833 (4,054) 35,405 (447) 222,238 (4,501) $ 7,921,112 $ (323,163) $ 255,500 $ (4,302) $ 8,176,612 $ (327,465) Less than 12 Months 12 Months or More Total Fair Value Unrecognized Fair Value Unrecognized Fair Value Unrecognized (Dollars in thousands) Held-to-maturity securities U.S. Treasuries $ 1,202,805 $ (42,488) $ — $ — $ 1,202,805 $ (42,488) Residential mortgage-backed securities: Government agency mortgage-backed securities 512,527 (40,537) — — 512,527 (40,537) Government agency collateralized mortgage obligation 106,646 (10,393) — — 106,646 (10,393) Commercial mortgage-backed securities: Government agency collateralized mortgage obligation 48,229 (6,241) — — 48,229 (6,241) Municipal bonds: Tax-exempt 349,700 (48,038) — — 349,700 (48,038) Taxable 358,986 (44,164) — — 358,986 (44,164) $ 2,578,893 $ (191,861) $ — $ — $ 2,578,893 $ (191,861) December 31, 2021 Less than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (Dollars in thousands) Available-for-sale securities U.S. agency securities - excluding mortgage-backed securities $ 761,711 $ (6,005) $ — $ — $ 761,711 $ (6,005) Residential mortgage-backed securities: Government agency mortgage-backed securities 1,357,080 (14,378) 70 — 1,357,150 (14,378) Government agency collateralized mortgage obligation 1,513,388 (15,732) 650 (7) 1,514,038 (15,739) Private-label collateralized mortgage obligation — — 433 (11) 433 (11) Commercial mortgage-backed securities: Government agency mortgage-backed securities 435,055 (4,962) — — 435,055 (4,962) Government agency collateralized mortgage obligation 189,397 (1,370) — — 189,397 (1,370) Private-label collateralized mortgage obligation 98,173 (656) 6,791 (141) 104,964 (797) Municipal bonds: Tax-exempt 1,025,689 (8,210) — — 1,025,689 (8,210) Taxable 339,041 (6,016) — — 339,041 (6,016) Asset backed securities: Government sponsored student loan pools 168,204 (803) 32,783 (223) 200,987 (1,026) $ 5,887,738 $ (58,132) $ 40,727 $ (382) $ 5,928,465 $ (58,514)
Schedule of Amortized Cost and Estimated Fair Value of Investment Securities by Contractual Maturity	The amortized cost and estimated fair value of investment securities as of the periods presented by contractual maturity are shown below. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties. For purposes of the following table, the entire outstanding balance of residential and commercial mortgage-backed securities is categorized based on the final maturity date. March 31, December 31, Amortized Fair Amortized Fair (Dollars in thousands) Available-for-sale securities Within one year $ 34,889 $ 34,724 $ — $ — After one year through five years 1,611 1,531 2,243 2,170 After five years through ten years 1,503,068 1,502,618 1,406,395 1,401,733 After ten years 8,241,264 7,924,621 7,230,326 7,221,356 Total $ 9,780,832 $ 9,463,494 $ 8,638,964 $ 8,625,259 Held-to-maturity securities Within one year $ — $ — $ — $ — After one year through five years 1,245,293 1,202,805 — — After five years through ten years 275,375 249,523 — — After ten years 1,230,957 1,126,648 — — Total $ 2,751,625 $ 2,578,976 $ — $ —

Loans (Tables)

Loans (Tables)	3 Months Ended
	Mar. 31, 2022
Receivables [Abstract]
Schedule of Loans	A summary of loans as of the periods presented are as follows: March 31, December 31, (Dollars in thousands) Real estate loans: One-to-four family $ 94,161 $ 105,098 Multi-family 9,368 56,751 Commercial 80,279 210,136 Construction — 7,573 Commercial and industrial 434,960 335,862 Reverse mortgage and other 1,137 1,410 Mortgage warehouse 125,435 177,115 Total gross loans held-for-investment 745,340 893,945 Deferred fees, net (1,884) 275 Total loans held-for-investment 743,456 894,220 Allowance for loan losses (4,442) (6,916) Total loans held-for-investment, net $ 739,014 $ 887,304 Total loans held-for-sale (1) $ 937,140 $ 893,194 ________________________ (1) Loans held-for-sale includes $914.2 million and $893.2 million of mortgage warehouse loans as of March 31, 2022 and December 31, 2021, respectively.
Schedule of Allowance for Loan Losses	The following tables present the allocation of the allowance for loan losses, as well as the activity in the allowance by loan class, and recorded investment in loans held-for-investment as of and for the periods presented: Three Months Ended March 31, 2022 One-to Multi- Commercial Construction Commercial Reverse Mortgage Total (Dollars in thousands) Balance, December 31, 2021 $ 1,023 $ 682 $ 2,017 $ 776 $ 1,566 $ 12 $ 840 $ 6,916 Charge-offs — — — — — — — — Recoveries — — — — — — — — Provision for loan losses (223) (582) (1,542) (776) 933 (1) (283) (2,474) Balance, March 31, 2022 $ 800 $ 100 $ 475 $ — $ 2,499 $ 11 $ 557 $ 4,442 Three Months Ended March 31, 2021 One-to Multi- Commercial Construction Commercial and Reverse Mortgage Total (Dollars in thousands) Balance, December 31, 2020 $ 1,245 $ 878 $ 1,810 $ 590 $ 1,931 $ 39 $ 423 $ 6,916 Charge-offs — — — — — — — — Recoveries — — — — — — — — Provision for loan losses 389 (50) 1,441 (97) (1,571) (21) (91) — Balance, March 31, 2021 $ 1,634 $ 828 $ 3,251 $ 493 $ 360 $ 18 $ 332 $ 6,916 March 31, 2022 One-to Multi- Commercial Construction Commercial Reverse Mortgage Total (Dollars in thousands) Amount of allowance attributed to: Specifically evaluated impaired loans $ 28 $ — $ — $ — $ — $ — $ — $ 28 General portfolio allocation 772 100 475 — 2,499 11 557 4,414 Total allowance for loan losses $ 800 $ 100 $ 475 $ — $ 2,499 $ 11 $ 557 $ 4,442 Loans evaluated for impairment: Specifically evaluated $ 4,126 $ — $ 1,236 $ — $ — $ 646 $ — $ 6,008 Collectively evaluated 90,575 9,367 79,037 — 432,533 501 125,435 737,448 Total loans held-for-investment $ 94,701 $ 9,367 $ 80,273 $ — $ 432,533 $ 1,147 $ 125,435 $ 743,456 December 31, 2021 One-to Multi- Commercial Construction Commercial Reverse Mortgage Total (Dollars in thousands) Amount of allowance attributed to: Specifically evaluated impaired loans $ 29 $ — $ — $ — $ — $ — $ — $ 29 General portfolio allocation 994 682 2,017 776 1,566 12 840 6,887 Total allowance for loan losses $ 1,023 $ 682 $ 2,017 $ 776 $ 1,566 $ 12 $ 840 $ 6,916 Loans evaluated for impairment: Specifically evaluated $ 4,229 $ — $ 1,956 $ — $ — $ 923 $ — $ 7,108 Collectively evaluated 101,609 56,855 208,170 7,502 335,362 499 177,115 887,112 Total loans held-for-investment $ 105,838 $ 56,855 $ 210,126 $ 7,502 $ 335,362 $ 1,422 $ 177,115 $ 894,220
Schedule of Investments in Impaired Loans	The following tables provide a summary of the Company’s investment in impaired loans as of and for the periods presented: March 31, 2022 Unpaid Recorded Related (Dollars in thousands) With no related allowance recorded: Real estate loans: One-to-four family $ 3,866 $ 3,827 $ — Commercial 1,237 1,236 — Reverse mortgage and other 646 646 — 5,749 5,709 — With an allowance recorded: Real estate loans: One-to-four family 296 299 28 296 299 28 Total impaired loans $ 6,045 $ 6,008 $ 28 December 31, 2021 Unpaid Recorded Related (Dollars in thousands) With no related allowance recorded: Real estate loans: One-to-four family $ 4,616 $ 3,927 $ — Commercial 1,955 1,956 — Reverse mortgage and other 914 923 — 7,485 6,806 — With an allowance recorded: Real estate loans: One-to-four family 323 302 29 323 302 29 Total impaired loans $ 7,808 $ 7,108 $ 29 Three Months Ended March 31, 2022 2021 Average Interest Average Interest (Dollars in thousands) With no related allowance recorded: Real estate loans: One-to-four family $ 3,856 $ 17 $ 4,979 $ 77 Commercial 2,526 20 9,795 128 Commercial and industrial — — 249 5 Reverse mortgage and other 829 — 616 — 7,211 37 15,639 210 With an allowance recorded: Real estate loans: One-to-four family 300 1 64 1 Reverse mortgage and other — — 258 — 300 1 322 1 Total impaired loans $ 7,511 $ 38 $ 15,961 $ 211
Schedule of Aging Analysis by Loan Class	The following tables present by loan class the aging analysis based on contractual terms, nonaccrual loans, and the Company’s recorded investment in loans held-for-investment as of the periods presented: March 31, 2022 30-59 60-89 Greater Total Current Total Nonaccruing Loans (Dollars in thousands) Real estate loans: One-to-four family $ 210 $ 189 $ 2,776 $ 3,175 $ 91,526 $ 94,701 $ 2,986 $ — Multi-family — — — — 9,367 9,367 — — Commercial — — — — 80,273 80,273 — — Construction — — — — — — — — Commercial and industrial — — — — 432,533 432,533 — — Reverse mortgage and other — — — — 1,147 1,147 646 — Mortgage warehouse — — — — 125,435 125,435 — — Total loans held-for-investment $ 210 $ 189 $ 2,776 $ 3,175 $ 740,281 $ 743,456 $ 3,632 $ — December 31, 2021 30-59 60-89 Greater Total Current Total Nonaccruing Loans (Dollars in thousands) Real estate loans: One-to-four family $ 1,176 $ — $ 2,985 $ 4,161 $ 101,677 $ 105,838 $ 3,080 $ — Multi-family — — — — 56,855 56,855 — — Commercial — — — — 210,126 210,126 — — Construction — — — — 7,502 7,502 — — Commercial and industrial — — — — 335,362 335,362 — — Reverse mortgage and other — — — — 1,422 1,422 923 — Mortgage warehouse — — — — 177,115 177,115 — — Total loans held-for-investment $ 1,176 $ — $ 2,985 $ 4,161 $ 890,059 $ 894,220 $ 4,003 $ —
Schedule of Financing Receivable Credit Quality Indicators Description	The Company uses the following definitions for risk ratings: Pass : Loans in all classes that are not adversely rated, are contractually current as to principal and interest, and are otherwise in compliance with the contractual terms of the loan agreement. Management believes that there is a low likelihood of loss related to those loans that are considered pass. Special mention : Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. Substandard : Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Doubtful : Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Loss : Credits rated as loss are charged-off. Management has no expectation of the recovery of any payments in respect of credits rated as loss.
Schedule of Financing Receivable Credit Quality Indicators	The following tables present by portfolio class the Company’s internal risk grading system as well as certain other information concerning the credit quality of the Company’s recorded investment in loans held-for-investment as of the periods presented. No assets were classified as loss or doubtful during the periods presented. Credit Risk Grades Pass Special Mention Substandard Doubtful Total (Dollars in thousands) March 31, 2022 Real estate loans: One-to-four family $ 91,166 $ 549 $ 2,986 $ — $ 94,701 Multi-family 9,367 — — — 9,367 Commercial 65,305 13,732 1,236 — 80,273 Construction — — — — — Commercial and industrial 432,533 — — — 432,533 Reverse mortgage and other 501 — 646 — 1,147 Mortgage warehouse 125,435 — — — 125,435 Total loans held-for-investment $ 724,307 $ 14,281 $ 4,868 $ — $ 743,456 Credit Risk Grades Pass Special Mention Substandard Doubtful Total (Dollars in thousands) December 31, 2021 Real estate loans: One-to-four family $ 102,307 $ 451 $ 3,080 $ — $ 105,838 Multi-family 56,855 — — — 56,855 Commercial 199,598 10,528 — — 210,126 Construction 7,502 — — — 7,502 Commercial and industrial 335,362 — — — 335,362 Reverse mortgage and other 499 — 923 — 1,422 Mortgage warehouse 177,115 — — — 177,115 Total loans held-for-investment $ 879,238 $ 10,979 $ 4,003 $ — $ 894,220
Schedule of Loans Held-for-Investment Purchased and/or Sold, by Portfolio Segment	Purchases and Sales The following table presents loans held-for-investment purchased and/or sold during the year by portfolio segment: Three Months Ended March 31, 2022 2021 Purchases Sales (1) Purchases Sales (Dollars in thousands) Real estate loans: Multi-family $ — $ 54,227 $ — $ — Commercial — 155,011 — — Construction — 6,823 — — $ — $ 216,061 $ — $ — ________________________ (1) In conjunction with the loan sale during the three months ended March 31, 2022, the Company purchased a participating interest of $67.6 million of the loans sold to the buyer.

FHLB Advances and Other Borro_2

FHLB Advances and Other Borrowings (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Schedule of FHLB Advances	The following table sets forth certain information on our FHLB advances during the period presented: Three Months Ended Year Ended (Dollars in thousands) Amount outstanding at period-end $ 800,000 $ — Weighted average interest rate at period-end 0.43 % —

Derivative and Hedging Activi_2

Derivative and Hedging Activities (Tables)	3 Months Ended
	Mar. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Value of Derivative Financial Instruments and Classification within Statement of Financial Condition	The table below presents the fair value of the Company’s derivative financial instruments as well as the classification within the consolidated statements of financial condition. March 31, December 31, Balance Sheet Fair Value Balance Sheet Fair Value (Dollars in thousands) Derivatives designated as hedging instruments: Cash flow hedge interest rate floor Derivative assets $ 13,671 Derivative assets $ 18,992 Cash flow hedge interest rate cap Derivative assets — Derivative assets — Fair value hedge interest rate cap Derivative assets 32,744 Derivative assets 15,064
Schedule of Cumulative Basis Adjustments, Related Amortized Cost, and Effect of Fair Value Hedge Accounting	The following table presents the cumulative basis adjustments on hedged items designated as fair value hedges and the related amortized cost of those items as of the periods presented. Carrying Amount Cumulative Amount of Fair March 31, December 31, March 31, December 31, (Dollars in thousands) Line Item in the Statement of Financial Condition of Hedged Item: Securities available-for-sale $ 742,461 $ 697,437 $ (3,347) $ — The following table presents the effect of fair value hedge accounting on the Company’s consolidated statements of operations for the periods presented. Location and Amount of Gain or (Loss) Three Months Ended March 31, 2022 2021 Interest income - Taxable securities Interest income - Tax-exempt securities Interest income - Taxable securities Interest income - Tax-exempt securities (Dollars in thousands) Total interest income presented in the statement of operations in which the effects of fair value hedges are recorded $ 17,779 $ 13,184 $ 3,592 $ 1,695 Effects of fair value hedging relationships Interest rate contracts: Hedged items $ — $ (3,701) $ (1,072) $ (743) Derivatives designated as hedging instruments — 3,701 1,053 743 Amount excluded from effectiveness testing recognized in earnings based on amortization approach — (610) — (25)
Schedule of Effects of Derivatives in Cash Flow and Fair Value Hedging Relationships on Accumulated Other Comprehensive Income (Loss)	The following table summarizes the effects of derivatives in cash flow and fair value hedging relationships designated as hedging instruments on the Company’s AOCI and consolidated statements of operations for the periods presented. Amount of Gain (Loss) Location of Gain (Loss) Amount of Gain (Loss) Three Months Ended Three Months Ended 2022 2021 2022 2021 (Dollars in thousands) Derivatives designated as hedging instruments: Cash flow hedge interest rate floor $ (857) $ (1,450) Interest income - Other interest earning assets $ 131 $ 136 Cash flow hedge interest rate floor (3,426) (5,800) Interest income - Taxable securities 1,032 1,052 Cash flow hedge interest rate cap — — Interest expense - Subordinated debentures (96) (99) Fair value hedge interest rate cap (1) 19,448 375 ________________________ (1) Represents amounts excluded from the assessment of effectiveness for which the difference between changes in fair value and periodic amortization is recorded in other comprehensive income.

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Schedule of Effective Income Tax Rate Reconciliation	Comparison of the federal statutory income tax rates to the Company’s effective income tax rates for the periods presented are as follows: Three Months Ended March 31, 2022 2021 Amount Rate Amount Rate (Dollars in thousands) Statutory federal tax $ 7,222 21.0 % $ 2,415 21.0 % State tax, net of federal benefit 2,840 8.3 % (451) (3.9) % Tax credits (38) (0.1) % (41) (0.4) % Tax-exempt income, net (2,994) (8.7) % (347) (3.0) % Excess tax benefit from stock-based compensation (29) (0.1) % (3,003) (26.1) % Other items, net 14 0.0 % 216 1.9 % Actual tax expense (benefit) $ 7,015 20.4 % $ (1,211) (10.5) %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Schedule of Off-Balance Sheet Items	The Company’s commitments associated with outstanding letters of credit and commitments to extend credit expiring by period as of the date indicated are summarized below. Since commitments associated with letters of credit and commitments to extend credit may expire unused, the amounts shown do not necessarily reflect the actual future cash funding requirements. March 31, December 31, (Dollars in thousands) Unfunded lines of credit $ 643,609 $ 248,092 Letters of credit 821 484 Total credit extension commitments $ 644,430 $ 248,576

Stock-based Compensation (Table

Stock-based Compensation (Tables)	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Schedule of Stock Option Activity	A summary of stock option activity as of March 31, 2022 and changes during the three months ended March 31, 2022 is presented below: Number of Weighted Weighted Average Remaining Contractual Life (in years) Aggregate Intrinsic Value (in thousands) Outstanding at January 1, 2022 191,191 $ 24.97 Granted 29,117 110.84 Exercised (1,840) 16.09 Forfeited or expired (1,511) 16.09 Outstanding at March 31, 2022 216,957 $ 36.63 7.3 years $ 24,720 Exercisable at March 31, 2022 99,654 $ 19.28 6.0 years $ 13,083 Vested or Expected to Vest at March 31, 2022 209,715 $ 36.34 7.2 years $ 23,956
Schedule of Status of Nonvested Restricted Stock Unit Awards and Changes	A summary of the status of the Company’s nonvested restricted stock unit awards as of March 31, 2022, and changes during the three months ended March 31, 2022, is presented below: Number of Shares Weighted-Average Nonvested at January 1, 2022 56,871 $ 72.53 Granted 43,165 $ 110.84 Vested (7,128) $ 122.91 Forfeited (1,029) $ 71.99 Nonvested at March 31, 2022 91,879 $ 86.63

Regulatory Capital (Tables)

Regulatory Capital (Tables)	3 Months Ended
	Mar. 31, 2022
Regulated Operations [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	Actual capital amounts and ratios for the Company and the Bank as of March 31, 2022 and December 31, 2021, are presented in the following tables: Actual Minimum capital adequacy (1) To be well Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) March 31, 2022 The Company Tier 1 leverage ratio $ 1,597,946 9.68 % $ 660,633 4.00 % N/A N/A Common equity tier 1 capital ratio 1,388,825 38.97 % 160,360 4.50 % N/A N/A Tier 1 risk-based capital ratio 1,597,946 44.84 % 213,813 6.00 % N/A N/A Total risk-based capital ratio 1,603,983 45.01 % 285,084 8.00 % N/A N/A The Bank Tier 1 leverage ratio 1,577,199 9.51 % 663,196 4.00 % $ 828,995 5.00 % Common equity tier 1 capital ratio 1,577,199 44.28 % 160,273 4.50 % 231,505 6.50 % Tier 1 risk-based capital ratio 1,577,199 44.28 % 213,697 6.00 % 284,929 8.00 % Total risk-based capital ratio 1,583,236 44.45 % 284,929 8.00 % 356,161 10.00 % Actual Minimum capital adequacy (1) To be well Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) December 31, 2021 The Company Tier 1 leverage ratio $ 1,631,257 11.07 % $ 589,614 4.00 % N/A N/A Common equity tier 1 capital ratio 1,422,136 49.53 % 129,198 4.50 % N/A N/A Tier 1 risk-based capital ratio 1,631,257 56.82 % 172,264 6.00 % N/A N/A Total risk-based capital ratio 1,638,794 57.08 % 229,686 8.00 % N/A N/A The Bank Tier 1 leverage ratio 1,546,693 10.49 % 589,595 4.00 % $ 736,994 5.00 % Common equity tier 1 capital ratio 1,546,693 53.89 % 129,162 4.50 % 186,567 6.50 % Tier 1 risk-based capital ratio 1,546,693 53.89 % 172,216 6.00 % 229,622 8.00 % Total risk-based capital ratio 1,554,230 54.15 % 229,622 8.00 % 287,027 10.00 % ________________________ (1) Minimum capital adequacy for common equity tier 1 capital ratio, tier 1 risk-based capital ratio and total risk-based capital ratio excludes the capital conservation buffer.

Fair Value (Tables)

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis	As of March 31, 2022 and December 31, 2021, assets and liabilities measured at fair value on a recurring basis are as follows: Fair Value Measurements Using Quoted Prices Significant Other Significant Level 1 Level 2 Level 3 Total (Dollars in thousands) March 31, 2022 Assets Securities available-for-sale $ 176,343 $ 9,287,151 $ — $ 9,463,494 Derivative assets — 46,415 — 46,415 $ 176,343 $ 9,333,566 $ — $ 9,509,909 Fair Value Measurements Using Quoted Prices Significant Other Significant Level 1 Level 2 Level 3 Total (Dollars in thousands) December 31, 2021 Assets Securities available-for-sale $ — $ 8,625,259 $ — $ 8,625,259 Derivative assets — 34,056 — 34,056 $ — $ 8,659,315 $ — $ 8,659,315
Schedule of Fair Value by Balance Sheet Grouping	The following tables present information about the Company’s assets and liabilities that are not measured at fair value in the consolidated statements of financial condition as of the dates presented: Carrying Fair Value Measurements Using Level 1 Level 2 Level 3 Total (Dollars in thousands) March 31, 2022 Financial assets: Cash and due from banks $ 207,304 $ 207,304 $ — $ — $ 207,304 Interest earning deposits 1,178,205 1,178,205 — — 1,178,205 Securities held-to-maturity 2,751,625 1,202,805 1,376,171 — 2,578,976 Loans held-for-sale 937,140 — 937,140 — 937,140 Loans held-for-investment, net 739,014 — — 742,784 742,784 Accrued interest receivable 62,573 158 17,070 45,345 62,573 Financial liabilities: Deposits $ 13,396,162 $ — $ 12,839,700 $ — $ 12,839,700 FHLB advances 800,000 — 800,000 — 800,000 Subordinated debentures, net 15,848 — 15,745 — 15,745 Accrued interest payable 111 — 111 — 111 Carrying Fair Value Measurements Using Level 1 Level 2 Level 3 Total (Dollars in thousands) December 31, 2021 Financial assets: Cash and due from banks $ 208,193 $ 208,193 $ — $ — $ 208,193 Interest earning deposits 5,179,753 5,179,753 — — 5,179,753 Loans held-for-sale 893,194 — 893,194 — 893,194 Loans held-for-investment, net 887,304 — — 891,166 891,166 Accrued interest receivable 40,370 41 8,980 31,349 40,370 Financial liabilities: Deposits $ 14,290,628 $ — $ 14,167,200 $ — $ 14,167,200 Subordinated debentures, net 15,845 — 15,646 — 15,646 Accrued interest payable 223 — 223 — 223

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Earnings Per Share	The computation of basic and diluted earnings per share is shown below. Three Months Ended 2022 2021 (In thousands, except per share data) Basic Net income $ 27,386 $ 12,710 Less: Dividends paid to preferred shareholders 2,688 — Net income available to common shareholders $ 24,698 $ 12,710 Weighted average common shares outstanding 31,219 22,504 Basic earnings per common share $ 0.79 $ 0.56 Diluted Net income available to common shareholders $ 24,698 $ 12,710 Weighted average common shares outstanding for basic earnings per common share 31,219 22,504 Add: Dilutive effects of stock-based awards 182 506 Average shares and dilutive potential common shares 31,401 23,010 Dilutive earnings per common share $ 0.79 $ 0.55

Securities - Reconciliation fro

Securities - Reconciliation from Amortized Cost to Estimated Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Available-for-sale securities
Amortized Cost	$ 9,780,832	$ 8,638,964
Gross Unrealized Gains	10,127	44,809
Gross Unrealized Losses	(327,465)	(58,514)
Fair Value	9,463,494	8,625,259
Held-to-maturity securities
Amortized Cost	2,751,625	0
Gross Unrecognized Gains	0
Gross Unrecognized Losses	(172,649)
Fair Value	2,578,976
U.S. Treasuries
Available-for-sale securities
Amortized Cost	34,889
Gross Unrealized Gains	0
Gross Unrealized Losses	(165)
Fair Value	34,724
Held-to-maturity securities
Amortized Cost	1,245,293
Gross Unrecognized Gains	0
Gross Unrecognized Losses	(42,488)
Fair Value	1,202,805
U.S. agency securities - excluding mortgage-backed securities
Available-for-sale securities
Amortized Cost	1,548,367	1,177,452
Gross Unrealized Gains	7,627	7,320
Gross Unrealized Losses	(7,333)	(6,005)
Fair Value	1,548,661	1,178,767
Government agency mortgage-backed securities
Available-for-sale securities
Amortized Cost	1,781,961	1,428,365
Gross Unrealized Gains	62	130
Gross Unrealized Losses	(30,103)	(14,378)
Fair Value	1,751,920	1,414,117
Held-to-maturity securities
Amortized Cost	547,423
Gross Unrecognized Gains	0
Gross Unrecognized Losses	(34,896)
Fair Value	512,527
Government agency collateralized mortgage obligation
Available-for-sale securities
Amortized Cost	1,385,198	1,659,125
Gross Unrealized Gains	1	1,617
Gross Unrealized Losses	(27,850)	(15,739)
Fair Value	1,357,349	1,645,003
Held-to-maturity securities
Amortized Cost	113,921
Gross Unrecognized Gains	0
Gross Unrecognized Losses	(7,192)
Fair Value	106,729
Private-label collateralized mortgage obligation
Available-for-sale securities
Amortized Cost	1,342	1,425
Gross Unrealized Gains	12	19
Gross Unrealized Losses	(14)	(11)
Fair Value	1,340	1,433
Government agency mortgage-backed securities
Available-for-sale securities
Amortized Cost	1,338,333	1,106,680
Gross Unrealized Gains	2,360	1,886
Gross Unrealized Losses	(9,283)	(4,962)
Fair Value	1,331,410	1,103,604
Government agency collateralized mortgage obligation
Available-for-sale securities
Amortized Cost	70,839	212,266
Gross Unrealized Gains	0	19
Gross Unrealized Losses	(60)	(1,370)
Fair Value	70,779	210,915
Held-to-maturity securities
Amortized Cost	53,408
Gross Unrecognized Gains	0
Gross Unrecognized Losses	(5,179)
Fair Value	48,229
Private-label collateralized mortgage obligation
Available-for-sale securities
Amortized Cost	492,565	144,204
Gross Unrealized Gains	0	227
Gross Unrealized Losses	(11,651)	(797)
Fair Value	480,914	143,634
Tax-exempt
Available-for-sale securities
Amortized Cost	2,900,600	2,272,794
Gross Unrealized Gains	65	33,153
Gross Unrealized Losses	(236,505)	(8,210)
Fair Value	2,664,160	2,297,737
Held-to-maturity securities
Amortized Cost	393,965
Gross Unrecognized Gains	0
Gross Unrecognized Losses	(44,265)
Fair Value	349,700
Taxable
Available-for-sale securities
Amortized Cost		403,279
Gross Unrealized Gains		341
Gross Unrealized Losses		(6,016)
Fair Value		397,604
Held-to-maturity securities
Amortized Cost	397,615
Gross Unrecognized Gains	0
Gross Unrecognized Losses	(38,629)
Fair Value	358,986
Government sponsored student loan pools
Available-for-sale securities
Amortized Cost	226,738	233,374
Gross Unrealized Gains	0	97
Gross Unrealized Losses	(4,501)	(1,026)
Fair Value	$ 222,237	$ 232,445

Securities - Narrative (Details

Securities - Narrative (Details)	3 Months Ended
	Mar. 31, 2022USD ($)issuersecurity	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)security
Investments, Debt and Equity Securities [Abstract]
Fair value of available-for-sale securities, transferred to held-to-maturity	$ 1,500,000,000
Available-for-sale securities, transferred to held-to-maturity, cumulative unrecognized loss, after tax	14,100,000
Investment securities pledged for borrowings	$ 1,200,000,000		$ 0
Fair value of securities issued in an amount greater than 10% of shareholders' equity, number of individual issuers | issuer	1
Fair value of securities issued in an amount greater than 10% of shareholders' equity	$ 275,300,000
Gross unrealized losses on available-for-sale and held-to-maturity securities in a continuous unrealized loss position	519,300,000
Gross unrealized losses on available-for-sale securities in a continuous unrealized loss position	$ 327,465,000		$ 58,514,000
Number of securities whose estimated fair value declined | security	622		323
Decline in fair value from amortized cost (as a percent)	4.61%		0.98%
Proceeds from sale of securities available-for-sale	$ 432,059,000	$ 0
Realized gain on available-for-sale securities	3,800,000
Realized loss on available-for-sale securities	4,400,000
Credit losses recognized in earnings	$ 0	$ 0

Securities - Securities in Unre

Securities - Securities in Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value
Less than 12 Months	$ 7,921,112	$ 5,887,738
12 Months or More	255,500	40,727
Total	8,176,612	5,928,465
Unrealized Losses
Less than 12 Months	(323,163)	(58,132)
12 Months or More	(4,302)	(382)
Total	(327,465)	(58,514)
Fair Value
Less than 12 Months	2,578,893
12 Months or More	0
Total	2,578,893
Unrealized Losses
Less than 12 Months	(191,861)
12 Months or More	0
Total	(191,861)
U.S. Treasuries
Fair Value
Less than 12 Months	34,724
12 Months or More	0
Total	34,724
Unrealized Losses
Less than 12 Months	(165)
12 Months or More	0
Total	(165)
Fair Value
Less than 12 Months	1,202,805
12 Months or More	0
Total	1,202,805
Unrealized Losses
Less than 12 Months	(42,488)
12 Months or More	0
Total	(42,488)
U.S. agency securities - excluding mortgage-backed securities
Fair Value
Less than 12 Months	781,759	761,711
12 Months or More	12,977	0
Total	794,736	761,711
Unrealized Losses
Less than 12 Months	(7,101)	(6,005)
12 Months or More	(232)	0
Total	(7,333)	(6,005)
Government agency mortgage-backed securities
Fair Value
Less than 12 Months	1,725,830	1,357,080
12 Months or More	68	70
Total	1,725,898	1,357,150
Unrealized Losses
Less than 12 Months	(30,102)	(14,378)
12 Months or More	(1)	0
Total	(30,103)	(14,378)
Fair Value
Less than 12 Months	512,527
12 Months or More	0
Total	512,527
Unrealized Losses
Less than 12 Months	(40,537)
12 Months or More	0
Total	(40,537)
Government agency collateralized mortgage obligation
Fair Value
Less than 12 Months	1,155,505	1,513,388
12 Months or More	199,890	650
Total	1,355,395	1,514,038
Unrealized Losses
Less than 12 Months	(24,377)	(15,732)
12 Months or More	(3,473)	(7)
Total	(27,850)	(15,739)
Fair Value
Less than 12 Months	106,646
12 Months or More	0
Total	106,646
Unrealized Losses
Less than 12 Months	(10,393)
12 Months or More	0
Total	(10,393)
Private-label collateralized mortgage obligation
Fair Value
Less than 12 Months	199	0
12 Months or More	421	433
Total	620	433
Unrealized Losses
Less than 12 Months	(3)	0
12 Months or More	(11)	(11)
Total	(14)	(11)
Government agency mortgage-backed securities
Fair Value
Less than 12 Months	871,284	435,055
12 Months or More	0	0
Total	871,284	435,055
Unrealized Losses
Less than 12 Months	(9,283)	(4,962)
12 Months or More	0	0
Total	(9,283)	(4,962)
Government agency collateralized mortgage obligation
Fair Value
Less than 12 Months	62,991	189,397
12 Months or More	0	0
Total	62,991	189,397
Unrealized Losses
Less than 12 Months	(60)	(1,370)
12 Months or More	0	0
Total	(60)	(1,370)
Fair Value
Less than 12 Months	48,229
12 Months or More	0
Total	48,229
Unrealized Losses
Less than 12 Months	(6,241)
12 Months or More	0
Total	(6,241)
Private-label collateralized mortgage obligation
Fair Value
Less than 12 Months	474,175	98,173
12 Months or More	6,739	6,791
Total	480,914	104,964
Unrealized Losses
Less than 12 Months	(11,513)	(656)
12 Months or More	(138)	(141)
Total	(11,651)	(797)
Tax-exempt
Fair Value
Less than 12 Months	2,627,812	1,025,689
12 Months or More	0	0
Total	2,627,812	1,025,689
Unrealized Losses
Less than 12 Months	(236,505)	(8,210)
12 Months or More	0	0
Total	(236,505)	(8,210)
Fair Value
Less than 12 Months	349,700
12 Months or More	0
Total	349,700
Unrealized Losses
Less than 12 Months	(48,038)
12 Months or More	0
Total	(48,038)
Taxable
Fair Value
Less than 12 Months		339,041
12 Months or More		0
Total		339,041
Unrealized Losses
Less than 12 Months		(6,016)
12 Months or More		0
Total		(6,016)
Fair Value
Less than 12 Months	358,986
12 Months or More	0
Total	358,986
Unrealized Losses
Less than 12 Months	(44,164)
12 Months or More	0
Total	(44,164)
Government sponsored student loan pools
Fair Value
Less than 12 Months	186,833	168,204
12 Months or More	35,405	32,783
Total	222,238	200,987
Unrealized Losses
Less than 12 Months	(4,054)	(803)
12 Months or More	(447)	(223)
Total	$ (4,501)	$ (1,026)

Securities - Amortized Cost and

Securities - Amortized Cost and Estimated Fair Value of Investment Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Amortized Cost
Within one year	$ 34,889	$ 0
After one year through five years	1,611	2,243
After five years through ten years	1,503,068	1,406,395
After ten years	8,241,264	7,230,326
Total	9,780,832	8,638,964
Fair Value
Within one year	34,724	0
After one year through five years	1,531	2,170
After five years through ten years	1,502,618	1,401,733
After ten years	7,924,621	7,221,356
Total	9,463,494	8,625,259
Amortized Cost
Within one year	0	0
After one year through five years	1,245,293	0
After five years through ten years	275,375	0
After ten years	1,230,957	0
Total	2,751,625	0
Fair Value
Within one year	0	0
After one year through five years	1,202,805	0
After five years through ten years	249,523	0
After ten years	1,126,648	0
Total	$ 2,578,976	$ 0

Loans - Narrative (Details)

Loans - Narrative (Details)	3 Months Ended
	Mar. 31, 2022USD ($)contract	Mar. 31, 2021USD ($)contract	Dec. 31, 2021USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	$ 745,340,000		$ 893,945,000
Accrued interest on loans held-for-investment	2,500,000		3,300,000
Investment in TDRs	1,700,000		1,700,000
Allowance allocated to investment in TDRs	$ 28,000		29,000
Loans modified as TDRs | contract	0	0
Loans modified as TDRs, subsequent default | contract	0	0
Provision for loan loss for TDRs that subsequently defaulted	$ 0	$ 0
Related party loans	0		7,700,000
Decrease in balance of related party loans due to principal payments received	7,700,000
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	184,900,000		381,000,000
SEN Leverage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	435,000,000		335,900,000
SEN Leverage, Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	635,100,000		234,600,000
Mortgage warehouse | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	125,435,000		177,115,000
Gross mortgage warehouse loans	$ 1,000,000,000		$ 1,100,000,000

Loans - Summary of Loans (Detai

Loans - Summary of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	$ 745,340	$ 893,945
Deferred fees, net	(1,884)	275
Total loans held-for-investment	743,456	894,220
Allowance for loan losses	(4,442)	(6,916)	$ (6,916)	$ (6,916)
Total loans held-for-investment, net	739,014	887,304
Total loans held-for-sale	937,140	893,194
Residential | Mortgage warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	125,435	177,115
Total loans held-for-investment	125,435	177,115
Allowance for loan losses	(557)	(840)	(332)	(423)
Total loans held-for-sale	914,200	893,200
Reverse mortgage and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	1,137	1,410
Total loans held-for-investment	1,147	1,422
Allowance for loan losses	(11)	(12)	(18)	(39)
Real estate loans | Residential | One-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	94,161	105,098
Total loans held-for-investment	94,701	105,838
Allowance for loan losses	(800)	(1,023)	(1,634)	(1,245)
Real estate loans | Residential | Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	9,368	56,751
Total loans held-for-investment	9,367	56,855
Allowance for loan losses	(100)	(682)	(828)	(878)
Real estate loans | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	80,279	210,136
Total loans held-for-investment	80,273	210,126
Allowance for loan losses	(475)	(2,017)	(3,251)	(1,810)
Real estate loans | Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	0	7,573
Total loans held-for-investment	0	7,502
Allowance for loan losses	0	(776)	(493)	(590)
Commercial and industrial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans held-for-investment	434,960	335,862
Total loans held-for-investment	432,533	335,362
Allowance for loan losses	$ (2,499)	$ (1,566)	$ (360)	$ (1,931)

Loans - Allowance (Details)

Loans - Allowance (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 6,916	$ 6,916
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	(2,474)	0
Ending balance	4,442	6,916
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Specifically evaluated impaired loans	28		$ 29
General portfolio allocation	4,414		6,887
Total allowance for loan losses	4,442	6,916	6,916
Loans evaluated for impairment:
Specifically evaluated	6,008		7,108
Collectively evaluated	737,448		887,112
Total loans held-for-investment	743,456		894,220
Residential | One-to-four family | Real estate loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,023	1,245
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	(223)	389
Ending balance	800	1,634
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Specifically evaluated impaired loans	28		29
General portfolio allocation	772		994
Total allowance for loan losses	800	1,634	1,023
Loans evaluated for impairment:
Specifically evaluated	4,126		4,229
Collectively evaluated	90,575		101,609
Total loans held-for-investment	94,701		105,838
Residential | Multi- Family | Real estate loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	682	878
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	(582)	(50)
Ending balance	100	828
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Specifically evaluated impaired loans	0		0
General portfolio allocation	100		682
Total allowance for loan losses	100	828	682
Loans evaluated for impairment:
Specifically evaluated	0		0
Collectively evaluated	9,367		56,855
Total loans held-for-investment	9,367		56,855
Residential | Mortgage Warehouse
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	840	423
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	(283)	(91)
Ending balance	557	332
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Specifically evaluated impaired loans	0		0
General portfolio allocation	557		840
Total allowance for loan losses	557	332	840
Loans evaluated for impairment:
Specifically evaluated	0		0
Collectively evaluated	125,435		177,115
Total loans held-for-investment	125,435		177,115
Commercial | Real estate loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,017	1,810
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	(1,542)	1,441
Ending balance	475	3,251
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Specifically evaluated impaired loans	0		0
General portfolio allocation	475		2,017
Total allowance for loan losses	475	3,251	2,017
Loans evaluated for impairment:
Specifically evaluated	1,236		1,956
Collectively evaluated	79,037		208,170
Total loans held-for-investment	80,273		210,126
Commercial | Construction | Real estate loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	776	590
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	(776)	(97)
Ending balance	0	493
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Specifically evaluated impaired loans	0		0
General portfolio allocation	0		776
Total allowance for loan losses	0	493	776
Loans evaluated for impairment:
Specifically evaluated	0		0
Collectively evaluated	0		7,502
Total loans held-for-investment	0		7,502
Commercial and  Industrial | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,566	1,931
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	933	(1,571)
Ending balance	2,499	360
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Specifically evaluated impaired loans	0		0
General portfolio allocation	2,499		1,566
Total allowance for loan losses	2,499	360	1,566
Loans evaluated for impairment:
Specifically evaluated	0		0
Collectively evaluated	432,533		335,362
Total loans held-for-investment	432,533		335,362
Reverse Mortgage and Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	12	39
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	(1)	(21)
Ending balance	11	18
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Specifically evaluated impaired loans	0		0
General portfolio allocation	11		12
Total allowance for loan losses	11	$ 18	12
Loans evaluated for impairment:
Specifically evaluated	646		923
Collectively evaluated	501		499
Total loans held-for-investment	$ 1,147		$ 1,422

Loans - Impaired Loans (Details

Loans - Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Unpaid Principal Balance	$ 5,749		$ 7,485
Impaired loans with no related allowance - Recorded Investment	5,709		6,806
Impaired loans with related allowance - Unpaid Principal Balance	296		323
Impaired loans with related allowance - Recorded Investment	299		302
Impaired loans - Unpaid Principal Balance	6,045		7,808
Impaired loans - Recorded Investment	6,008		7,108
Impaired loans - Related Allowance	28		29
Impaired loans with no related allowance - Average Recorded Investment	7,211	$ 15,639
Impaired loans with no related allowance - Interest Income Recognized	37	210
Impaired loans with related allowance - Average Recorded Investment	300	322
Impaired loans with related allowance - Interest Income Recognized	1	1
Impaired loans - Average Recorded Investment	7,511	15,961
Impaired loans - Interest Income Recognized	38	211
Reverse mortgage and other
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Unpaid Principal Balance	646		914
Impaired loans with no related allowance - Recorded Investment	646		923
Impaired loans with no related allowance - Average Recorded Investment	829	616
Impaired loans with no related allowance - Interest Income Recognized	0	0
Impaired loans with related allowance - Average Recorded Investment	0	258
Impaired loans with related allowance - Interest Income Recognized	0	0
Real estate loans | Residential | One-to-four family
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Unpaid Principal Balance	3,866		4,616
Impaired loans with no related allowance - Recorded Investment	3,827		3,927
Impaired loans with related allowance - Unpaid Principal Balance	296		323
Impaired loans with related allowance - Recorded Investment	299		302
Impaired loans - Related Allowance	28		29
Impaired loans with no related allowance - Average Recorded Investment	3,856	4,979
Impaired loans with no related allowance - Interest Income Recognized	17	77
Impaired loans with related allowance - Average Recorded Investment	300	64
Impaired loans with related allowance - Interest Income Recognized	1	1
Real estate loans | Commercial
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Unpaid Principal Balance	1,237		1,955
Impaired loans with no related allowance - Recorded Investment	1,236		$ 1,956
Impaired loans with no related allowance - Average Recorded Investment	2,526	9,795
Impaired loans with no related allowance - Interest Income Recognized	20	128
Commercial and industrial | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average Recorded Investment	0	249
Impaired loans with no related allowance - Interest Income Recognized	$ 0	$ 5

Loans - Aging Analysis (Details

Loans - Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Total	$ 743,456	$ 894,220
Nonaccruing	3,632	4,003
Loans Receivable > 89 Days and Accruing	0	0
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	210	1,176
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	189	0
Greater than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	2,776	2,985
Total Past Due
Financing Receivable, Past Due [Line Items]
Total	3,175	4,161
Current
Financing Receivable, Past Due [Line Items]
Total	740,281	890,059
Residential | Mortgage warehouse
Financing Receivable, Past Due [Line Items]
Total	125,435	177,115
Nonaccruing	0	0
Loans Receivable > 89 Days and Accruing	0	0
Residential | Mortgage warehouse | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Residential | Mortgage warehouse | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Residential | Mortgage warehouse | Greater than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Residential | Mortgage warehouse | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Residential | Mortgage warehouse | Current
Financing Receivable, Past Due [Line Items]
Total	125,435	177,115
Reverse mortgage and other
Financing Receivable, Past Due [Line Items]
Total	1,147	1,422
Nonaccruing	646	923
Loans Receivable > 89 Days and Accruing	0	0
Reverse mortgage and other | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Reverse mortgage and other | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Reverse mortgage and other | Greater than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Reverse mortgage and other | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Reverse mortgage and other | Current
Financing Receivable, Past Due [Line Items]
Total	1,147	1,422
Real estate loans | Residential | One-to-four family
Financing Receivable, Past Due [Line Items]
Total	94,701	105,838
Nonaccruing	2,986	3,080
Loans Receivable > 89 Days and Accruing	0	0
Real estate loans | Residential | One-to-four family | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	210	1,176
Real estate loans | Residential | One-to-four family | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	189	0
Real estate loans | Residential | One-to-four family | Greater than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	2,776	2,985
Real estate loans | Residential | One-to-four family | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	3,175	4,161
Real estate loans | Residential | One-to-four family | Current
Financing Receivable, Past Due [Line Items]
Total	91,526	101,677
Real estate loans | Residential | Multi-family
Financing Receivable, Past Due [Line Items]
Total	9,367	56,855
Nonaccruing	0	0
Loans Receivable > 89 Days and Accruing	0	0
Real estate loans | Residential | Multi-family | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Residential | Multi-family | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Residential | Multi-family | Greater than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Residential | Multi-family | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Residential | Multi-family | Current
Financing Receivable, Past Due [Line Items]
Total	9,367	56,855
Real estate loans | Commercial
Financing Receivable, Past Due [Line Items]
Total	80,273	210,126
Nonaccruing	0	0
Loans Receivable > 89 Days and Accruing	0	0
Real estate loans | Commercial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Commercial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Commercial | Greater than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Commercial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Commercial | Current
Financing Receivable, Past Due [Line Items]
Total	80,273	210,126
Real estate loans | Commercial | Construction
Financing Receivable, Past Due [Line Items]
Total	0	7,502
Nonaccruing	0	0
Loans Receivable > 89 Days and Accruing	0	0
Real estate loans | Commercial | Construction | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Commercial | Construction | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Commercial | Construction | Greater than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Commercial | Construction | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real estate loans | Commercial | Construction | Current
Financing Receivable, Past Due [Line Items]
Total	0	7,502
Commercial and industrial | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total	432,533	335,362
Nonaccruing	0	0
Loans Receivable > 89 Days and Accruing	0	0
Commercial and industrial | Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Commercial and industrial | Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Commercial and industrial | Commercial and industrial | Greater than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Commercial and industrial | Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Commercial and industrial | Commercial and industrial | Current
Financing Receivable, Past Due [Line Items]
Total	$ 432,533	$ 335,362

Loans - Credit Quality Indicato

Loans - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 743,456	$ 894,220
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	724,307	879,238
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	14,281	10,979
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	4,868	4,003
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Residential | Mortgage warehouse
Financing Receivable, Credit Quality Indicator [Line Items]
Total	125,435	177,115
Residential | Mortgage warehouse | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	125,435	177,115
Residential | Mortgage warehouse | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Residential | Mortgage warehouse | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Residential | Mortgage warehouse | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Reverse mortgage and other
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,147	1,422
Reverse mortgage and other | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	501	499
Reverse mortgage and other | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Reverse mortgage and other | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	646	923
Reverse mortgage and other | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Real estate loans | Residential | One-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Total	94,701	105,838
Real estate loans | Residential | One-to-four family | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	91,166	102,307
Real estate loans | Residential | One-to-four family | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	549	451
Real estate loans | Residential | One-to-four family | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,986	3,080
Real estate loans | Residential | One-to-four family | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Real estate loans | Residential | Multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Total	9,367	56,855
Real estate loans | Residential | Multi-family | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	9,367	56,855
Real estate loans | Residential | Multi-family | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Real estate loans | Residential | Multi-family | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Real estate loans | Residential | Multi-family | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Real estate loans | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	80,273	210,126
Real estate loans | Commercial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	65,305	199,598
Real estate loans | Commercial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	13,732	10,528
Real estate loans | Commercial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,236	0
Real estate loans | Commercial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Real estate loans | Commercial | Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	7,502
Real estate loans | Commercial | Construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	7,502
Real estate loans | Commercial | Construction | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Real estate loans | Commercial | Construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Real estate loans | Commercial | Construction | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Commercial and industrial | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	432,533	335,362
Commercial and industrial | Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	432,533	335,362
Commercial and industrial | Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Commercial and industrial | Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Commercial and industrial | Commercial and industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 0	$ 0

Loans - Held-for-Investment Pur

Loans - Held-for-Investment Purchased and/or Sold (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	$ 0	$ 0
Sales	216,061	0
Loan sales, purchase participating interest	67,600
Real estate loans | Residential | Multi- Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	0	0
Sales	54,227	0
Real estate loans | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	0	0
Sales	155,011	0
Real estate loans | Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	0	0
Sales	$ 6,823	$ 0

FHLB Advances and Other Borro_3

FHLB Advances and Other Borrowings - FHLB Advances (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Disclosure [Abstract]
Amount outstanding at period-end	$ 800,000	$ 0
Weighted average interest rate at period-end	0.43%	0.00%

FHLB Advances and Other Borro_4

FHLB Advances and Other Borrowings - Narrative (Details)	Mar. 31, 2022USD ($)bank	Dec. 31, 2021USD ($)
Short-term Debt [Line Items]
FHLB advances, maximum borrowing capacity in proportion to assets (as a percent)	35.00%	35.00%
FHLB advances, collateral pledged	$ 2,400,000,000	$ 1,400,000,000
FHLB advances, unused borrowing capacity	1,200,000,000	1,000,000,000
Federal funds purchased, maximum borrowing capacity	$ 108,000,000
Number of correspondent banks | bank	2
Federal funds purchased, amount outstanding	$ 0	0
Federal Reserve Bank Advances
Short-term Debt [Line Items]
FRB advances, collateral pledged	5,200,000	6,000,000
FRB advances, current borrowing capacity	2,900,000	5,200,000
FRB advances, amount outstanding	$ 0	$ 0

Intangible Assets - Narrative (

Intangible Assets - Narrative (Details) - Libra Association, Diem Networks US HoldCo, Inc., Diem Networks US, Inc., Diem Networks II LLC, Diem LLC, And Diem Networks LLC	Jan. 31, 2022USD ($)shares
Asset Acquisition [Line Items]
Asset acquisition, cash paid	$ 50,000,000
Asset acquisition, capitalized direct transaction costs	8,400,000
Asset acquisition, intangible assets	$ 190,000,000
Class A Common Stock
Asset Acquisition [Line Items]
Asset acquisition, number of shares issued (shares) | shares	1,221,217
Asset acquisition, total transaction consideration	$ 181,600,000

Subordinated Debentures, Net -

Subordinated Debentures, Net - Narrative (Details) - Subordinated Debentures - USD ($)	Jul. 31, 2021	Jan. 31, 2005	Mar. 31, 2022	Dec. 31, 2021	Jul. 31, 2001
Debt Instrument [Line Items]
Interest payments, deferment period			5 years
Outstanding principal balance			$ 15,800,000	$ 15,800,000
Unamortized debt issuance costs			$ 100,000	$ 100,000
Trust One
Debt Instrument [Line Items]
Minority interest (as a percent)			3.00%
Trust Two
Debt Instrument [Line Items]
Minority interest (as a percent)			3.00%
2001 Subordinated Debentures Maturing July 25, 2031 | Trust One
Debt Instrument [Line Items]
Principal amount					$ 12,500,000
Effective interest rate (as a percent)			4.19%
Redemption price (as a percent)			100.00%
2001 Subordinated Debentures Maturing July 25, 2031 | Trust One | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.75%
Interest rate (as a percent)			0.44%
2005 Subordinated Debentures Maturing March 15, 2035 | Trust Two
Debt Instrument [Line Items]
Principal amount		$ 3,000,000
Redemption price (as a percent)			100.00%
2005 Subordinated Debentures Maturing March 15, 2035 | Trust Two | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		1.85%
Interest rate (as a percent)			0.83%
Effective interest rate (as a percent)			2.68%

Derivative and Hedging Activi_3

Derivative and Hedging Activities - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended		12 Months Ended
	Oct. 31, 2021USD ($)	Mar. 31, 2022USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2021USD ($)instrument	Dec. 31, 2012USD ($)	Dec. 31, 2020USD ($)instrument	Dec. 31, 2019USD ($)instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated net derivative gain included in OCI to be reclassified into earnings		$ 1.6
Estimated time for net derivative gain included in OCI to be reclassified into earnings		12 months
Interest Rate Swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative instruments | instrument						2
Derivative, notional amount						$ 14.3
Gain on sale of derivatives	$ 0.9
Interest Rate Floor
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative instruments | instrument							20
Derivative, notional amount							$ 400
Gain on sale of derivatives			$ 8.4
Upfront fee paid to counterparty		$ 20.8
Derivative, notional amount sold			200
Proceeds from sale of derivative			$ 13
Recognition period for net gain on sale of derivative			4 years 1 month 6 days
Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative instruments | instrument				26
Derivative, notional amount				$ 552.8
Gain on sale of derivatives		0.4
Upfront fee paid to counterparty				$ 24.7	$ 2.5
Derivative, notional amount sold		16.5
Proceeds from sale of derivative		$ 1.1
Cap Agreement Expiring July 25, 2022 | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount					12.5
Cap Agreement Expiring March 15, 2022 | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount					$ 3
Fed Funds Rate | Interest Rate Floor
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Floor interest rate (as a percent)		2.50%
Fed Funds Rate | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Floor interest rate (as a percent)				2.00%
London Interbank Offered Rate (LIBOR) | Interest Rate Floor
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Floor interest rate (as a percent)		2.25%
London Interbank Offered Rate (LIBOR) | Cap Agreement Expiring July 25, 2022 | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cap interest rate (as a percent)					0.75%
London Interbank Offered Rate (LIBOR) | Cap Agreement Expiring March 15, 2022 | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cap interest rate (as a percent)					0.50%

Derivative and Hedging Activi_4

Derivative and Hedging Activities - Fair Value by Balance Sheet Location (Details) - Derivative assets - Derivatives designated as hedging instruments - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Interest Rate Floor | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative assets	$ 13,671	$ 18,992
Interest Rate Cap | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative assets	0	0
Interest Rate Cap | Fair Value Hedging
Derivatives, Fair Value [Line Items]
Derivative assets	$ 32,744	$ 15,064

Derivative and Hedging Activi_5

Derivative and Hedging Activities - Cumulative Amount of Fair Value Hedging Adjustments (Details) - Securities available-for-sale - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of the Hedged Asset (Liability)	$ 742,461	$ 697,437
Cumulative Amount of Fair Value Hedging Adjustments Included in the Carrying Amount of Hedged Assets/(Liabilities)	$ (3,347)	$ 0

Derivative and Hedging Activi_6

Derivative and Hedging Activities - Amount of Gain (Loss) Recognized in OCI and Reclassified into Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI	$ 14,603	$ (7,460)
Interest income - Other interest earning assets	1,385	1,279
Interest income - Taxable securities	17,779	3,592
Interest expense - Subordinated debentures	(252)	(245)
Derivatives designated as hedging instruments | Reclassification out of Accumulated Other Comprehensive Income | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest income - Other interest earning assets	131	136
Interest income - Taxable securities	1,032	1,052
Interest expense - Subordinated debentures	(96)	(99)
Derivatives designated as hedging instruments | Cash flow hedge interest rate floor | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI	(857)	(1,450)
Derivatives designated as hedging instruments | Cash flow hedge interest rate floor | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI	(3,426)	(5,800)
Derivatives designated as hedging instruments | Interest Rate Cap | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI	0	0
Derivatives designated as hedging instruments | Interest Rate Cap | Fair Value Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI	$ 19,448	$ 375

Derivative and Hedging Activi_7

Derivative and Hedging Activities - Effect of Fair Value Hedge Accounting (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest income - Taxable securities	$ 17,779	$ 3,592
Interest income - Tax-exempt securities	13,184	1,695
Interest Rate Cap | Fair Value Hedging
Interest rate contracts:
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	(610)	(25)
Interest Rate Cap | Fair Value Hedging | Interest income - Taxable securities
Interest rate contracts:
Hedged items	0	(1,072)
Interest Rate Cap | Fair Value Hedging | Interest income - Tax-exempt securities
Interest rate contracts:
Hedged items	(3,701)	(743)
Derivatives designated as hedging instruments | Interest Rate Cap | Fair Value Hedging | Interest income - Taxable securities
Interest rate contracts:
Derivatives designated as hedging instruments	0	1,053
Derivatives designated as hedging instruments | Interest Rate Cap | Fair Value Hedging | Interest income - Tax-exempt securities
Interest rate contracts:
Derivatives designated as hedging instruments	$ 3,701	$ 743

Income Taxes - Effective Income

Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Amount
Statutory federal tax	$ 7,222	$ 2,415
State tax, net of federal benefit	2,840	(451)
Tax credits	(38)	(41)
Tax-exempt income, net	(2,994)	(347)
Excess tax benefit from stock-based compensation	(29)	(3,003)
Other items, net	14	216
Actual tax expense (benefit)	$ 7,015	$ (1,211)
Rate
Statutory federal tax	21.00%	21.00%
State tax, net of federal benefit	8.30%	(3.90%)
Tax credits	(0.10%)	(0.40%)
Tax-exempt income, net	(8.70%)	(3.00%)
Excess tax benefit from stock-based compensation	(0.10%)	(26.10%)
Other items, net	0.00%	1.90%
Actual tax expense (benefit)	20.40%	(10.50%)

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 7,015	$ (1,211)
Effective tax rate (as a percent)	20.40%	(10.50%)
Deferred tax asset	$ 97,100		$ 6,500

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Allowance for commitments	$ 1.6	$ 0.6

Commitments and Contingencies_2

Commitments and Contingencies - Off-Balance Sheet Items (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total credit extension commitments	$ 644,430	$ 248,576
Unfunded lines of credit
Debt Instrument [Line Items]
Total credit extension commitments	643,609	248,092
Letters of credit
Debt Instrument [Line Items]
Total credit extension commitments	$ 821	$ 484

Stock-based Compensation - Narr

Stock-based Compensation - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 0.7	$ 0.3
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense related to stock options	$ 2.2
Period unrecognized expenses is expected to be recognized	2 years 4 months 24 days
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period unrecognized expenses is expected to be recognized	2 years 7 months 6 days
Unrecognized stock-based compensation expense	$ 6.1
2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (shares)			1,596,753

Stock-based Compensation - Stoc

Stock-based Compensation - Stock Compensation Plans (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)$ / sharesshares
Number of Options
Outstanding at beginning of period (shares) | shares	191,191
Granted (shares) | shares	29,117
Exercised (shares) | shares	(1,840)
Forfeited or expired (shares) | shares	(1,511)
Outstanding at end of period (shares) | shares	216,957
Exercisable at end of period (shares) | shares	99,654
Vested or Expected to Vest at end of period (shares) | shares	209,715
Weighted Average Exercise Price
Outstanding at beginning of period (USD per share) | $ / shares	$ 24.97
Granted (USD per share) | $ / shares	110.84
Exercised (USD per share) | $ / shares	16.09
Forfeited or expired (USD per share) | $ / shares	16.09
Outstanding at end of period (USD per share) | $ / shares	36.63
Exercisable at end of period (USD per share) | $ / shares	19.28
Vested or Expected to Vest at end of period (USD per share) | $ / shares	$ 36.34
Weighted Average Remaining Contractual Life (in years)
Outstanding at end of period	7 years 3 months 18 days
Exercisable at end of period	6 years
Vested or Expected to Vest at end of period	7 years 2 months 12 days
Aggregate Intrinsic Value (in thousands)
Outstanding at end of period | $	$ 24,720
Exercisable at end of period | $	13,083
Vested or Expected to Vest at end of period | $	$ 23,956

Stock-based Compensation - Rest

Stock-based Compensation - Restricted Stock Units Activity (Details) - Restricted Stock Units	3 Months Ended
	Mar. 31, 2022$ / sharesshares
Number of Shares
Beginning balance (shares) | shares	56,871
Granted (shares) | shares	43,165
Vested (shares) | shares	(7,128)
Forfeited (shares) | shares	(1,029)
Ending balance (shares) | shares	91,879
Weighted-Average Grant Date Fair Value Per Share
Beginning balance (USD per share) | $ / shares	$ 72.53
Granted (USD per share) | $ / shares	110.84
Vested (USD per share) | $ / shares	122.91
Forfeited (USD per share) | $ / shares	71.99
Ending balance (USD per share) | $ / shares	$ 86.63

Regulatory Capital - Summary (D

Regulatory Capital - Summary (Details) $ in Thousands	Mar. 31, 2022USD ($)	Dec. 31, 2021USD ($)
The Company
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage ratio, amount	$ 1,597,946	$ 1,631,257
Tier 1 leverage ratio (as a percent)	0.0968	0.1107
Tier 1 leverage ratio, minimum capital adequacy, amount	$ 660,633	$ 589,614
Tier 1 leverage ratio, minimum capital adequacy (as a percent)	0.0400	0.0400
Common equity tier 1 capital ratio, amount	$ 1,388,825	$ 1,422,136
Common equity tier 1 capital ratio (as a percent)	0.3897	0.4953
Common equity tier 1 capital ratio, minimum capital adequacy, amount	$ 160,360	$ 129,198
Common equity tier 1 capital ratio, minimum capital adequacy (as a percent)	0.0450	0.0450
Tier 1 risk-based capital ratio, amount	$ 1,597,946	$ 1,631,257
Tier 1 risk-based capital ratio (as a percent)	0.4484	0.5682
Tier 1 risk-based capital ratio, minimum capital adequacy, amount	$ 213,813	$ 172,264
Tier 1 risk-based capital ratio, minimum capital adequacy (as a percent)	0.0600	0.0600
Total risk-based capital ratio, amount	$ 1,603,983	$ 1,638,794
Total risk-based capital ratio (as a percent)	0.4501	0.5708
Total risk-based capital ratio, minimum capital adequacy, amount	$ 285,084	$ 229,686
Total risk-based capital ratio, minimum capital adequacy (as a percent)	0.0800	0.0800
The Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage ratio, amount	$ 1,577,199	$ 1,546,693
Tier 1 leverage ratio (as a percent)	0.0951	0.1049
Tier 1 leverage ratio, minimum capital adequacy, amount	$ 663,196	$ 589,595
Tier 1 leverage ratio, minimum capital adequacy (as a percent)	0.0400	0.0400
Tier 1 leverage ratio, to be well capitalized, amount	$ 828,995	$ 736,994
Tier 1 leverage ratio, to be well capitalized (as a percent)	0.0500	0.0500
Common equity tier 1 capital ratio, amount	$ 1,577,199	$ 1,546,693
Common equity tier 1 capital ratio (as a percent)	0.4428	0.5389
Common equity tier 1 capital ratio, minimum capital adequacy, amount	$ 160,273	$ 129,162
Common equity tier 1 capital ratio, minimum capital adequacy (as a percent)	0.0450	0.0450
Common equity tier 1 capital ratio, to be well capitalized, amount	$ 231,505	$ 186,567
Common equity tier 1 capital ratio, to be well capitalized (as a percent)	6.50%	6.50%
Tier 1 risk-based capital ratio, amount	$ 1,577,199	$ 1,546,693
Tier 1 risk-based capital ratio (as a percent)	0.4428	0.5389
Tier 1 risk-based capital ratio, minimum capital adequacy, amount	$ 213,697	$ 172,216
Tier 1 risk-based capital ratio, minimum capital adequacy (as a percent)	0.0600	0.0600
Tier 1 risk-based capital ratio, to be well capitalized, amount	$ 284,929	$ 229,622
Tier 1 risk-based capital ratio, to be well capitalized (as a percent)	0.0800	0.0800
Total risk-based capital ratio, amount	$ 1,583,236	$ 1,554,230
Total risk-based capital ratio (as a percent)	0.4445	0.5415
Total risk-based capital ratio, minimum capital adequacy, amount	$ 284,929	$ 229,622
Total risk-based capital ratio, minimum capital adequacy (as a percent)	0.0800	0.0800
Total risk-based capital ratio, to be well capitalized, amount	$ 356,161	$ 287,027
Total risk-based capital ratio, to be well capitalized (as a percent)	0.1000	0.1000

Fair Value - Recurring Basis (D

Fair Value - Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets
Securities available-for-sale	$ 9,463,494	$ 8,625,259
Derivative assets	46,415	34,056
Recurring Basis
Assets
Securities available-for-sale	9,463,494	8,625,259
Derivative assets	46,415	34,056
Total	9,509,909	8,659,315
Recurring Basis | Level 1
Assets
Securities available-for-sale	176,343	0
Derivative assets	0	0
Total	176,343	0
Recurring Basis | Level 2
Assets
Securities available-for-sale	9,287,151	8,625,259
Derivative assets	46,415	34,056
Total	9,333,566	8,659,315
Recurring Basis | Level 3
Assets
Securities available-for-sale	0	0
Derivative assets	0	0
Total	$ 0	$ 0

Fair Value - Narrative (Details

Fair Value - Narrative (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Assets
Assets measured at fair value	$ 742,784,000	$ 891,166,000
Non-recurring basis
Assets
Assets measured at fair value	$ 0	$ 0

Fair Value - Fair Value by Bala

Fair Value - Fair Value by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financial assets:
Cash and due from banks, Carrying Amount	$ 207,304	$ 208,193
Cash and due from banks, Fair Value	207,304	208,193
Interest earning deposits, Carrying Amount	1,178,205	5,179,753
Interest earning deposits, Fair Value	207,304	208,193
Securities held-to-maturity, Carrying Amount	2,751,625	0
Securities held-to-maturity, Fair Value	2,578,976
Loans held-for-sale, Carrying Amount	937,140	893,194
Loans held-for-sale, Fair Value	937,140	893,194
Loans held-for-investment, net, Carrying Amount	739,014	887,304
Loans held-for-investment, net, Fair Value	742,784	891,166
Accrued interest receivable, Carrying Amount	62,573	40,370
Accrued interest receivable, Fair Value	62,573	40,370
Financial liabilities:
Deposits, Carrying Amount	13,396,162	14,290,628
Deposits, Fair Value	12,839,700	14,167,200
FHLB advances, Carrying Amount	800,000	0
FHLB advances, Fair Value	800,000
Subordinated debentures, net, Carrying Amount	15,848	15,845
Subordinated debentures, net, Fair Value	15,745	15,646
Accrued interest payable, Carrying Amount	111	223
Accrued interest payable, Fair Value	111	223
Interest earning deposits
Financial assets:
Cash and due from banks, Fair Value	1,178,205	5,179,753
Interest earning deposits, Fair Value	1,178,205	5,179,753
Level 1
Financial assets:
Cash and due from banks, Fair Value	207,304	208,193
Interest earning deposits, Fair Value	207,304	208,193
Securities held-to-maturity, Fair Value	1,202,805
Loans held-for-sale, Fair Value	0	0
Loans held-for-investment, net, Fair Value	0	0
Accrued interest receivable, Fair Value	158	41
Financial liabilities:
Deposits, Fair Value	0	0
FHLB advances, Fair Value	0
Subordinated debentures, net, Fair Value	0	0
Accrued interest payable, Fair Value	0	0
Level 1 | Interest earning deposits
Financial assets:
Cash and due from banks, Fair Value	1,178,205	5,179,753
Interest earning deposits, Fair Value	1,178,205	5,179,753
Level 2
Financial assets:
Cash and due from banks, Fair Value	0	0
Interest earning deposits, Fair Value	0	0
Securities held-to-maturity, Fair Value	1,376,171
Loans held-for-sale, Fair Value	937,140	893,194
Loans held-for-investment, net, Fair Value	0	0
Accrued interest receivable, Fair Value	17,070	8,980
Financial liabilities:
Deposits, Fair Value	12,839,700	14,167,200
FHLB advances, Fair Value	800,000
Subordinated debentures, net, Fair Value	15,745	15,646
Accrued interest payable, Fair Value	111	223
Level 2 | Interest earning deposits
Financial assets:
Cash and due from banks, Fair Value	0	0
Interest earning deposits, Fair Value	0	0
Level 3
Financial assets:
Cash and due from banks, Fair Value	0	0
Interest earning deposits, Fair Value	0	0
Securities held-to-maturity, Fair Value	0
Loans held-for-sale, Fair Value	0	0
Loans held-for-investment, net, Fair Value	742,784	891,166
Accrued interest receivable, Fair Value	45,345	31,349
Financial liabilities:
Deposits, Fair Value	0	0
FHLB advances, Fair Value	0
Subordinated debentures, net, Fair Value	0	0
Accrued interest payable, Fair Value	0	0
Level 3 | Interest earning deposits
Financial assets:
Cash and due from banks, Fair Value	0	0
Interest earning deposits, Fair Value	$ 0	$ 0

Earnings Per Share - Summary (D

Earnings Per Share - Summary (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Basic
Net income	$ 27,386	$ 12,710
Less: Dividends paid to preferred shareholders	2,688	0
Net income available to common shareholders. basic	$ 24,698	$ 12,710
Weighted average common shares outstanding (shares)	31,219	22,504
Basic earnings per common share (USD per share)	$ 0.79	$ 0.56
Diluted
Net income available to common shareholders	$ 24,698	$ 12,710
Weighted average common shares outstanding for basic earnings per common share (shares)	31,219	22,504
Add: Dilutive effects of stock-based awards (shares)	182	506
Average shares and dilutive potential common shares (shares)	31,401	23,010
Dilutive earnings per common share (USD per share)	$ 0.79	$ 0.55

Earnings Per Share - Narrative

Earnings Per Share - Narrative (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Stock awards excluded from computation of diluted earnings per share (shares)	48	44

Shareholders' Equity - Narrativ

Shareholders' Equity - Narrative (Details) - USD ($)	Jan. 31, 2022	Jan. 14, 2022	Dec. 09, 2021	Oct. 14, 2021	Aug. 04, 2021	Mar. 09, 2021	Jan. 26, 2021	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021	Dec. 31, 2021
Class of Stock [Line Items]
Preferred stock authorized (shares)								10,000,000			10,000,000
Preferred stock, par value (USD per share)								$ 0.01			$ 0.01
Liquidation preference (USD per share)								$ 1,000			$ 1,000
Aggregate gross proceeds of stock offering								$ 131,517,000	$ 423,540,000
Preferred stock, dividend declared (USD per share)		$ 13.44		$ 15.08
Preferred stock, total dividend		$ 2,700,000		$ 3,000,000				2,688,000
Proceeds from common stock issuance, net								$ (57,000)	$ 423,540,000
Class A Common Stock
Class of Stock [Line Items]
Common stock authorized (shares)								125,000,000			125,000,000
Common stock, par value (USD per share)								$ 0.01			$ 0.01
Class A Common Stock | Libra Association, Diem Networks US HoldCo, Inc., Diem Networks US, Inc., Diem Networks II LLC, Diem LLC, And Diem Networks LLC
Class of Stock [Line Items]
Asset acquisition, number of shares issued (shares)	1,221,217
Asset acquisition, price per share (USD per share)	$ 107.74
Asset acquisition, total value	$ 131,600,000
Class A Common Stock | Follow-on Offering, including Over-Allotment Option
Class of Stock [Line Items]
Stock sold during period (shares)			3,806,895				4,563,493
Aggregate gross proceeds of stock offering							$ 287,500,000
Offering price per share (USD per share)			$ 145				$ 63
Proceeds from common stock issuance, net			$ 530,300,000				$ 272,400,000
Aggregate gross proceeds of stock offering			$ 552,000,000
Class A Common Stock | Over-Allotment Option
Class of Stock [Line Items]
Stock sold during period (shares)			496,551				595,238
Class A Common Stock | ATM Program
Class of Stock [Line Items]
Stock sold during period (shares)										2,793,826
Offering price per share (USD per share)										$ 107.38
Proceeds from common stock issuance, net										$ 295,100,000
Aggregate gross sales price						$ 300,000,000
Class B Common Stock
Class of Stock [Line Items]
Common stock authorized (shares)								25,000,000			25,000,000
Common stock, par value (USD per share)								$ 0.01			$ 0.01
Series A Non-Cumulative Perpetual Preferred Stock, Depositary Share
Class of Stock [Line Items]
Stock sold during period (shares)					8,000,000
Liquidation preference (USD per share)					$ 25
Aggregate gross proceeds of stock offering					$ 200,000,000
Proceeds from preferred stock issuance, net					$ 193,600,000
Preferred stock, dividend declared (USD per share)		$ 0.336		$ 0.377
Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A
Class of Stock [Line Items]
Preferred stock, par value (USD per share)					$ 0.01
Ownership interest per depositary share					2.50%
Preferred stock, fixed rate					5.375%
Liquidation preference (USD per share)					$ 1,000

Subsequent Event - Narrative (D

Subsequent Event - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Apr. 11, 2022	Jan. 14, 2022	Oct. 14, 2021	Mar. 31, 2022
Subsequent Event [Line Items]
Preferred stock, dividend declared (USD per share)		$ 13.44	$ 15.08
Preferred stock, total dividend		$ 2,700	$ 3,000	$ 2,688
Series A Non-Cumulative Perpetual Preferred Stock, Depositary Share
Subsequent Event [Line Items]
Preferred stock, dividend declared (USD per share)		$ 0.336	$ 0.377
Subsequent Event
Subsequent Event [Line Items]
Preferred stock, dividend declared (USD per share)	$ 13.44
Preferred stock, total dividend	$ 2,700
Subsequent Event | Series A Non-Cumulative Perpetual Preferred Stock, Depositary Share
Subsequent Event [Line Items]
Preferred stock, dividend declared (USD per share)	$ 0.336