Live Oak Bancshares (LOB) 10-Q 5 May 21 2021 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2021	May 04, 2021
Document Information [Line Items]
Entity Registrant Name	LIVE OAK BANCSHARES, INC.
Entity Central Index Key	0001462120
Trading Symbol	LOB
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	001-37497
Entity Tax Identification Number	26-4596286
Entity Address, Address Line One	1741 Tiburon Drive
Entity Address, City or Town	Wilmington
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	28403
City Area Code	910
Local Phone Number	790-5867
Entity Interactive Data Current	Yes
Document Quarterly Report	true
Document Transition Report	false
Title of 12(b) Security	Voting Common Stock, no par value per share
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	NC
Entity Voting Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		42,594,817
Entity Nonvoting Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		510,327

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and due from banks	$ 630,081	$ 297,167
Federal funds sold	5,461	21,153
Certificates of deposit with other banks	6,500	6,500
Investment securities available-for-sale	775,177	750,098
Loans held for sale (includes $35,936 and $36,111 measured at fair value, respectively)	1,076,741	1,175,470
Loans and leases held for investment (includes $790,797 and $815,374 measured at fair value, respectively)	5,456,754	5,144,930
Allowance for credit losses on loans and leases	(52,417)	(52,306)
Net loans and leases	5,404,337	5,092,624
Premises and equipment, net	253,774	259,267
Foreclosed assets	4,185	4,155
Servicing assets	37,744	33,918
Other assets	223,875	231,951
Total assets	8,417,875	7,872,303
Deposits:
Noninterest-bearing	75,794	75,287
Interest-bearing	6,240,210	5,637,541
Total deposits	6,316,004	5,712,828
Borrowings	1,465,961	1,542,093
Other liabilities	45,550	49,532
Total liabilities	7,827,515	7,304,453
Shareholders’ equity
Retained earnings	275,377	235,724
Accumulated other comprehensive income	9,128	21,507
Total shareholders’ equity	590,360	567,850
Total liabilities and shareholders’ equity	8,417,875	7,872,303
Preferred Stock Undefined
Shareholders’ equity
Preferred stock, no par value, 1,000,000 shares authorized, none issued or outstanding at March 31, 2021 and December 31, 2020
Class A Common Stock
Shareholders’ equity
Common stock	298,525	298,890
Class B Common Stock
Shareholders’ equity
Common stock	$ 7,330	$ 11,729

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Loans held-for-sale, fair value	$ 35,936	$ 36,111
Loans and leases held for Investment at fair value	$ 790,797	$ 815,374
Preferred Stock Undefined
Preferred stock, par value
Preferred stock authorized (in shares)	1,000,000	1,000,000
Preferred stock issued (in shares)	0	0
Preferred stock outstanding (in shares)	0	0
Class A Common Stock
Common stock, par value
Common stock authorized (in shares)	100,000,000	100,000,000
Common stock issued (in shares)	42,259,091	41,344,689
Common stock outstanding (in shares)	42,259,091	41,344,689
Class B Common Stock
Common stock, par value
Common stock authorized (in shares)	10,000,000	10,000,000
Common stock issued (in shares)	692,253	1,107,757
Common stock outstanding (in shares)	692,253	1,107,757

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest income
Loans and fees on loans	$ 84,993	$ 58,961
Investment securities, taxable	2,929	3,762
Other interest earning assets	303	750
Total interest income	88,225	63,473
Interest expense
Deposits	16,944	23,255
Borrowings	1,331	57
Total interest expense	18,275	23,312
Net interest income	69,950	40,161
(Recovery of) provision for loan and lease credit losses	(873)	11,792
Net interest income after (recovery of) provision for loan and lease credit losses	70,823	28,369
Noninterest income
Loan servicing revenue	6,434	6,422
Loan servicing asset revaluation	1,493	(4,692)
Net gains on sales of loans	11,929	11,112
Net gain (loss) on loans accounted for under the fair value option	4,218	(10,638)
Equity method investments income (loss)	(1,157)	(2,478)
Equity security investments gains (losses), net	105	(64)
Loss on sale of investment securities available-for-sale, net		(79)
Lease income	2,599	2,624
Management fee income	1,934	1,644
Other noninterest income	3,502	1,891
Total noninterest income	31,057	5,742
Noninterest expense
Salaries and employee benefits	31,366	28,063
Travel expense	659	1,781
Professional services expense	3,831	1,937
Advertising and marketing expense	652	1,361
Occupancy expense	2,112	2,421
Data processing expense	3,894	3,157
Equipment expense	4,354	4,635
Other loan origination and maintenance expense	3,327	2,456
Renewable energy tax credit investment impairment	3,127
FDIC insurance	1,765	1,510
Other expense	3,185	2,170
Total noninterest expense	58,272	49,491
Income (loss) before taxes	43,608	(15,380)
Income tax expense (benefit)	4,181	(7,778)
Net income (loss)	$ 39,427	$ (7,602)
Basic earnings (loss) per share	$ 0.92	$ (0.19)
Diluted earnings (loss) per share	$ 0.88	$ (0.19)

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 39,427	$ (7,602)
Other comprehensive (loss) income before tax:
Net unrealized (loss) gain on investment securities arising during the period	(16,288)	7,849
Reclassification adjustment for loss on sale of securities available-for-sale included in net income		(79)
Other comprehensive (loss) income before tax	(16,288)	7,928
Income tax benefit (expense)	3,909	(1,903)
Other comprehensive (loss) income, net of tax	(12,379)	6,025
Total comprehensive income (loss)	$ 27,048	$ (1,577)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect of Accounting Change	Common stock	Common stockClass A Common Stock	Common stockClass B Common Stock	Retained earnings	Retained earningsCumulative Effect of Accounting Change	Accumulated other comprehensive income (loss)
Beginning balance at Dec. 31, 2019	$ 532,386		$ 340,397			$ 180,265		$ 11,724
Beginning balance (Accounting Standards Update 2016-13) at Dec. 31, 2019		$ 822					$ 822
Beginning balance (in shares) at Dec. 31, 2019				37,401,443	2,915,531
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(7,602)					(7,602)
Other comprehensive income (loss)	6,025							6,025
Issuance of restricted stock (in shares)				7,424
Tax withholding related to vesting of restricted stock and other	(48)		(48)
Employee stock purchase program	232		232
Employee stock purchase program (Shares)				25,161
Stock option exercises	258		258
Stock option exercises (in shares)				30,642
Stock option based compensation expense	366		366
Restricted stock expense	2,542		2,542
Non-voting common stock converted to voting common stock in private sale (Shares)				200,000	(200,000)
Cash dividends	(1,209)					(1,209)
Ending balance at Mar. 31, 2020	533,772		343,747			172,276		17,749
Ending balance (in shares) at Mar. 31, 2020				37,664,670	2,715,531
Beginning balance at Dec. 31, 2020	567,850		310,619			235,724		21,507
Beginning balance (in shares) at Dec. 31, 2020				41,344,689	1,107,757
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	39,427					39,427
Other comprehensive income (loss)	(12,379)							(12,379)
Issuance of restricted stock (in shares)				292,216
Tax withholding related to vesting of restricted stock and other	(11,287)		(11,287)
Employee stock purchase program	296		296
Employee stock purchase program (Shares)				5,686
Stock option exercises	1,213		1,213
Stock option exercises (in shares)				200,996
Stock option based compensation expense	344		344
Restricted stock expense	4,670		4,670
Non-voting common stock converted to voting common stock in private sale (Shares)				415,504	(415,504)
Transfer from retained earnings to other assets for pro rata portion of equity method investee stock compensation expense	1,508					1,508
Cash dividends	(1,282)					(1,282)
Ending balance at Mar. 31, 2021	$ 590,360		$ 305,855			$ 275,377		$ 9,128
Ending balance (in shares) at Mar. 31, 2021				42,259,091	692,253

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Stockholders Equity [Abstract]
Cash dividends per share	$ 0.03	$ 0.03

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net income (loss)	$ 39,427	$ (7,602)
Adjustments to reconcile net income (loss) to net cash used by operating activities:
Depreciation and amortization	5,265	5,621
(Recovery of) provision for loan and lease credit losses	(873)	11,792
Amortization of premium on securities, net of accretion	1,817	269
Deferred tax (benefit) expense	(3,984)	1,264
Originations of loans held for sale	(253,588)	(274,678)
Proceeds from sales of loans held for sale	182,685	203,340
Net gains on sale of loans held for sale	(11,929)	(11,112)
Net loss on sale of foreclosed assets	24	49
Net (gain) loss on loans accounted for under fair value option	(4,218)	10,638
Net (increase) decrease in servicing assets	(3,826)	1,833
Loss on sale of investment securities available-for-sale, net		79
Net gain on disposal of long-lived asset	(114)
Net (gain) loss on disposal of property and equipment	(48)	38
Impairment on premises and equipment, net	904
Equity method investments (income) loss	1,157	2,478
Equity security investments (gains) losses, net	(105)	64
Renewable energy tax credit investment impairment	3,127
Stock option based compensation expense	344	366
Restricted stock expense	4,670	2,542
Stock based compensation excess tax benefit (shortfall)	5,152	(34)
Changes in assets and liabilities:
Lease right-of-use assets and liabilities, net	(1)	(12)
Other assets	855	(31,905)
Other liabilities	(5,406)	(6,493)
Net cash used by operating activities	(38,665)	(91,463)
Cash flows from investing activities
Purchases of securities available-for-sale	(108,223)	(52,757)
Proceeds from sales, maturities, calls, and principal paydown of securities available-for-sale	65,039	26,214
Proceeds from SBA reimbursement/sale of foreclosed assets	152	613
Loan and lease originations and principal collections, net	(119,970)	(152,616)
Proceeds from sale of long-lived asset	8,988
Proceeds from sale of premises and equipment	84
Purchases of premises and equipment, net	(674)	(737)
Net cash used by investing activities	(154,604)	(179,283)
Cash flows from financing activities
Net increase in deposits	603,176	412,421
Proceeds from borrowings	498,666	50,000
Repayment of borrowings	(580,291)	(2)
Stock option exercises	1,213	258
Employee stock purchase program	296	232
Withholding cash issued in lieu of restricted stock	(11,287)	(48)
Shareholder dividend distributions	(1,282)	(1,209)
Net cash provided by financing activities	510,491	461,652
Net increase in cash and cash equivalents	317,222	190,906
Cash and cash equivalents, beginning	318,320	221,397
Cash and cash equivalents, ending	635,542	412,303
Supplemental disclosures of cash flow information
Interest paid	18,469	23,858
Income tax paid, net	354	362
Supplemental disclosures of noncash operating, investing, and financing activities
Unrealized holding (losses) gains on available-for-sale securities, net of taxes	(12,379)	6,025
Transfers from loans and leases to foreclosed real estate and other repossessions	402	1,764
Net transfers between foreclosed real estate and SBA receivable	196	30
Transfer of loans held for sale to loans and leases held for investment	176,285	35,233
Transfer of loans and leases held for investment to loans held for sale	24,260	$ 2,949
Transfer from retained earnings to other assets for pro rata portion of equity method investee stock compensation expense	1,508
Recording of secured borrowing	5,493
Equity security investment commitments	$ 1,500

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	Note 1. Basis of Presentation Nature of Operations Live Oak Bancshares, Inc. (the “Company” or “LOB”) is a bank holding company headquartered in Wilmington, North Carolina incorporated under the laws of the state of North Carolina in December 2008. The Company conducts business operations primarily through its commercial bank subsidiary, Live Oak Banking Company (the “Bank”). The Bank was organized and incorporated under the laws of the State of North Carolina on February 25, 2008 and commenced operations on May 12, 2008. The Bank specializes in lending and deposit related services to small businesses nationwide. The Bank identifies and extends lending to credit-worthy borrowers both within specific industries, also called verticals, through expertise within those industries, and more broadly to select borrowers outside of those industries. A significant portion of the loans originated by the Bank are guaranteed by the Small Business Administration (“SBA”) under the 7(a) Loan Program and the U.S. Department of Agriculture’s ("USDA") Rural Energy for America Program ("REAP"), Water and Environmental Program (“WEP”) and Business & Industry ("B&I") loan programs. The Company’s wholly owned subsidiaries are the Bank, Government Loan Solutions (“GLS”), Live Oak Grove, LLC (“Grove”), Live Oak Ventures, Inc. (“Live Oak Ventures”), and Canapi Advisors, LLC (“Canapi”). The Bank’s wholly owned subsidiaries are Live Oak Number One, Inc., Live Oak Clean Energy Financing LLC (“LOCEF”), and Live Oak Private Wealth, LLC. Live Oak Number One, Inc. holds properties foreclosed on by the Bank. LOCEF provides financing to entities for renewable energy applications and became a wholly owned subsidiary of the Bank during the first quarter of 2019. Live Oak Private Wealth, LLC and its wholly owned subsidiary, Jolley Asset Management, LLC (“JAM”), provide high-net-worth individuals and families with strategic wealth and investment management services. GLS is a management and technology consulting firm that advises and offers solutions and services to participants in the government guaranteed lending sector. GLS primarily provides services in connection with the settlement, accounting, and securitization processes for government guaranteed loans, including loans originated under the SBA 7(a) loan programs and USDA guaranteed loans. The Grove provides Company employees and business visitors an on-site restaurant location. Live Oak Ventures’ purpose is investing in businesses that align with the Company's strategic initiative to be a leader in financial technology. Canapi provides investment advisory services to a series of funds focused on providing venture capital to new and emerging financial technology companies. The Company generates revenue primarily from net interest income and secondarily through the origination and sale of government guaranteed loans. Income from the retention of loans is comprised of interest income. The Company has historically elected to account for certain loans under the fair value option with interest reported in interest income and changes in fair value reported in the net gain (loss) on loans accounted for under the fair value option line item of the consolidated statements of income. During the first quarter of 2021, the Company chose not to elect fair value for all retained participating interests arising from new government guaranteed loan sales. Income from the sale of loans is comprised of loan servicing revenue and revaluation of related servicing assets along with net gains on sales of loans. Offsetting these revenues are the cost of funding sources, provision for loan and lease credit losses, any costs related to foreclosed assets and other operating costs such as salaries and employee benefits, travel, professional services, advertising and marketing and tax expense. The Company also has less routinely generated gains and losses arising from its financial technology investments in its fintech segment. General In the opinion of management, all adjustments necessary for a fair presentation of the financial position and results of operations for the periods presented have been included, and all intercompany transactions have been eliminated in consolidation. Results of operations for the three months ended March 31, 2021 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2021. The Unaudited Condensed Consolidated Balance Sheet as of December 31, 2020 has been derived from the audited consolidated financial statements contained in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, filed with the Securities Exchange Commission on February 25, 2021 (SEC File No. 001-37497) (the "2020 Annual Report"). A summary description of the significant accounting policies followed by the Company is set forth in Note 1 of the Notes to Consolidated Financial Statements in the Company’s 2020 Annual Report. These unaudited interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes in the Company's 2020 Annual Report. The preparation of financial statements in conformity with United States generally accepted accounting principles, or GAAP, requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and the reported amounts of revenues and expenses during the reporting period. Actual results could differ significantly from those estimates. Amounts in all tables in the Notes to Unaudited Condensed Consolidated Financial Statements have been presented in thousands, except percentage, time period, stock option, share and per share data or where otherwise indicated. Business Segments Operating segments are components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance. Management has determined that the Company has two significant operating segments: Banking and Fintech, as discussed more fully in Note 12. Segments. In determining the appropriateness of segment definition, the Company considers the criteria of ASC 280, Segment Reporting . Business Combination On April 1, 2020, the Company acquired 100% of the equity interests of JAM, a registered investment advisor based in Rocky Mount, North Carolina. Goodwill, intangible assets and contingent consideration of $1.8 million, $2.3 million and $2.1 million, respectively, have been recorded by the Company. Intangible assets are almost entirely comprised of customer relationships that are being amortized using the straight-line method over 15 years. As a result of this acquisition, the Bank's subsidiary Live Oak Private Wealth, LLC, expects to broaden service offerings to existing high-net-worth individuals and families, attract new clients from an expanded footprint and benefit from economies of scale. The acquisition did not materially impact the Company's financial position, results of operations or cash flows. Given the impact of the above acquisition was immaterial to the Company and its result of operations, pro forma information has not been included. Reclassifications Certain reclassifications have been made to the prior period’s condensed consolidated financial statements to place them on a comparable basis with the current year. Net income and shareholders’ equity previously reported were not affected by these reclassifications .

Recent Accounting Pronouncement

Recent Accounting Pronouncements	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Note 2. Recent Accounting Pronouncements In December 2019, the Financial Accounting Standards Board (“ In January 2020, the The Company adopted the standard on In March 2020, the FASB issued ASU No. 2020-04 “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting” (“ASU 2020-04”). ASU 2020-04 provides optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The amendments are effective for the Company as of March 12, 2020 through December 31, 2022. The Company does not believe this standard will have a material impact on its consolidated financial statements.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Note 3. Earnings Per Share Basic and diluted earnings per share are computed based on the weighted average number of shares outstanding during each period. Diluted earnings per share reflects the potential dilution that could occur upon the exercise of stock options or upon the vesting of restricted stock grants, any of which would result in the issuance of common stock that would then share in the net income of the Company. Three Months Ended March 31, 2021 2020 Basic earnings (loss) per share: Net income (loss) $ 39,427 $ (7,602 ) Weighted-average basic shares outstanding 42,673,615 40,334,179 Basic earnings (loss) per share $ 0.92 $ (0.19 ) Diluted earnings (loss) per share: Net income (loss), for diluted earnings (loss) per share $ 39,427 $ (7,602 ) Total weighted-average basic shares outstanding 42,673,615 40,334,179 Add effect of dilutive stock options and restricted stock grants 2,023,235 739,870 Total weighted-average diluted shares outstanding 44,696,850 41,074,049 Diluted earnings (loss) per share $ 0.88 $ (0.19 ) Anti-dilutive shares — 1,839,601 On April 6, 2021, 178 thousand restricted stock unit awards with market price conditions vested as the Company's share price satisfied applicable target price criteria. After net settlement for related tax withholding, the Company issued approximately 99 thousand shares.

Securities

Securities	3 Months Ended
	Mar. 31, 2021
Investments Debt And Equity Securities [Abstract]
Securities	Note 4. Securities Available-for-Sale The carrying amount of securities and their approximate fair values are reflected in the following table: March 31, 2021 Amortized Cost Unrealized Gains Unrealized Losses Fair Value US government agencies $ 15,442 $ 387 $ — $ 15,829 Mortgage-backed securities 744,462 20,208 8,895 755,775 Municipal bonds 3,262 315 4 3,573 Total $ 763,166 $ 20,910 $ 8,899 $ 775,177 December 31, 2020 US government agencies $ 15,440 $ 479 $ — $ 15,919 Mortgage-backed securities 703,092 28,302 940 730,454 Municipal bonds 3,267 462 4 3,725 Total $ 721,799 $ 29,243 $ 944 $ 750,098 During the three months ended March 31, 2021, two mortgage-backed securities totaling $6.5 million were paid off. During the three months ended March 31, 2020, two mortgage-backed securities totaling $4.5 million were sold resulting in a net loss of $79 thousand. Accrued interest receivable on available-for-sale securities totaled $1.9 million and $1.8 million at March 31, 2021 and December 31, 2020, respectively, and is included in other assets in the accompanying Unaudited Condensed Consolidated Balance Sheets. The following tables show debt securities available-for-sale in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position. Less Than 12 Months 12 Months or More Total March 31, 2021 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Mortgage-backed securities $ 357,905 $ 8,892 $ 650 $ 3 $ 358,555 $ 8,895 Municipal bonds — — 96 4 96 4 Total $ 357,905 $ 8,892 $ 746 $ 7 $ 358,651 $ 8,899 Less Than 12 Months 12 Months or More Total December 31, 2020 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Mortgage-backed securities $ 156,904 $ 917 $ 1,853 $ 23 $ 158,757 $ 940 Municipal bonds — — 96 4 96 4 Total $ 156,904 $ 917 $ 1,949 $ 27 $ 158,853 $ 944 Management evaluates available-for-sale debt securities to determine whether the unrealized loss is due to credit related factors or non-credit related factors. The evaluation considers the extent to which the security’s fair value is less than cost, the financial condition and near-term prospects of the issuer, and intent and ability of the Company to retain its investment in the security for a period of time sufficient to allow for any anticipated recovery in fair value. At March 31, 2021, there were two mortgage-backed securities and one municipal bond in unrealized loss positions for greater than 12 months and eighty-seven mortgage-backed securities in unrealized loss positions for less than 12 months. Unrealized losses at December 31, 2020 were comprised of three These unrealized losses are primarily the result of non-credit related volatility in the market and market interest rates. Since none of the unrealized losses relate to marketability of the securities or the issuer’s ability to honor redemption obligations and the Company has the intent and ability to hold the securities for a sufficient period of time to recover unrealized losses, none of the losses have been recognized in the Company’s Unaudited Condensed C onsolidated S tatements of I ncome. All mortgage-backed securities in the Company’s portfolio at March 31, 2021 and December 31, 2020 were backed by U.S. government sponsored enterprises (“GSEs”). The following is a summary of investment securities by maturity: March 31, 2021 Available-for-Sale Amortized cost Fair value US government agencies Within one year $ 5,000 $ 5,007 One to five years 7,513 7,737 Five to ten years 2,929 3,085 Total 15,442 15,829 Mortgage-backed securities One to five years 10,248 10,848 Five to ten years 227,756 237,693 After 10 years 506,458 507,234 Total 744,462 755,775 Municipal bonds After 10 years 3,262 3,573 Total 3,262 3,573 Total $ 763,166 $ 775,177 The table above reflects contractual maturities. Actual results will differ as the loans underlying the mortgage-backed securities may repay sooner than scheduled. There were no securities pledged at March 31, 2021 or December 31, 2020. Other Other investments, largely comprised of non-marketable equity investments, are generally accounted for under the equity method or equity security accounting. The below tables provide additional information related to investments accounted for under these two methods. Equity Method Accounting The carrying amount and ownership percentage of each equity investment over which the Company has significant influence at March 31, 2021 and December 31, 2020 is reflected in the following table: March 31, 2021 December 31, 2020 Amount Ownership % Amount Ownership % Apiture, Inc. $ 53,927 39.1 % $ 53,344 39.1 % Canapi Ventures SBIC Fund, LP (1) (3) 15,530 2.9 % 14,843 3.1 % Canapi Ventures Fund, LP (2) (3) 1,780 1.5 % 1,686 1.5 % Other fintech investments in private companies (4) 6,237 Various 1,634 Various Other (5) 3,273 Various 6,421 Various Total $ 80,747 $ 77,928 (1) Includes unfunded commitments of $9.4 million and $11.3 million as of March 31, 2021 and December 31, 2020, respectively. (2) Includes unfunded commitments of $1.0 million as of March 31, 2021 and December 31, 2020. (3) Investee is accounted for under equity method due to the Company's participation as an investment advisor. (4) Other fintech investments include Finxact, Inc., Payrailz, Inc. and Kwipped, Inc. (5) Includes unfunded commitments of $2.9 million at December 31, 2020. Equity Security Accounting The carrying amount of the Company’s investments in non-marketable equity securities with no readily determinable fair value and amounts recognized in earnings for the three months ended March 31, 2021, and on a cumulative basis is reflected in the following table: As of and for the three month period ended March 31, 2021 Amount Cumulative Adjustments Carrying value (1) $ 32,527 Carrying value adjustments: Impairment — $ — Upward changes for observable prices — 18,272 Downward changes for observable prices — (86 ) Net upward change $ — $ 18,186 (1) Includes $2.0 million in unfunded commitments.

Loans and Leases Held for Inves

Loans and Leases Held for Investment and Credit Quality	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Loans and Leases Held for Investment and Credit Quality	Note 5. Loans and Leases Held for Investment and Credit Quality The following tables present total loans and leases and an aging analysis for the Company’s portfolio segments. Loans and leases are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Current or Less than 30 Days Past Due 30-89 Days Past Due 90 Days or More Past Due Total Past Due Total Carried at Amortized Cost 1 Loans Accounted for Under the Fair Value Option 2 Total Loans and Leases March 31, 2021 Commercial & Industrial Small Business Banking $ 762,178 $ — $ 12,545 $ 12,545 $ 774,723 $ 299,291 $ 1,074,014 Specialty Lending 431,358 — — — 431,358 73,751 505,109 Paycheck Protection Program 1,478,995 — — — 1,478,995 — 1,478,995 Total 2,672,531 — 12,545 12,545 2,685,076 373,042 3,058,118 Construction & Development Small Business Banking 204,996 1,629 — 1,629 206,625 — 206,625 Specialty Lending 77,792 — 3,723 3,723 81,515 — 81,515 Total 282,788 1,629 3,723 5,352 288,140 — 288,140 Commercial Real Estate Small Business Banking 1,176,005 — 11,854 11,854 1,187,859 313,466 1,501,325 Specialty Lending 173,531 — 6,606 6,606 180,137 19,776 199,913 Total 1,349,536 — 18,460 18,460 1,367,996 333,242 1,701,238 Commercial Land Small Business Banking 346,206 2,325 2,055 4,380 350,586 84,513 435,099 Total 346,206 2,325 2,055 4,380 350,586 84,513 435,099 Total $ 4,651,061 $ 3,954 $ 36,783 $ 40,737 $ 4,691,798 $ 790,797 $ 5,482,595 Net deferred (fees) costs $ (25,841 ) Loan and Leases, Net of unearned $ 5,456,754 Current or Less than 30 Days Past Due 30-89 Days Past Due 90 Days or More Past Due Total Past Due Total Carried at Amortized Cost 1 Loans Accounted for Under the Fair Value Option 2 Total Loans and Leases December 31, 2020 Commercial & Industrial Small Business Banking $ 695,090 $ 10,341 $ 10,765 $ 21,106 $ 716,196 $ 308,341 $ 1,024,537 Specialty Lending 341,952 337 — 337 342,289 71,090 413,379 Paycheck Protection Program 1,528,180 — — — 1,528,180 — 1,528,180 Total 2,565,222 10,678 10,765 21,443 2,586,665 379,431 2,966,096 Construction & Development Small Business Banking 183,087 — — — 183,087 — 183,087 Specialty Lending 88,890 — 3,723 3,723 92,613 — 92,613 Total 271,977 — 3,723 3,723 275,700 — 275,700 Commercial Real Estate Small Business Banking 987,358 3,730 8,609 12,339 999,697 321,352 1,321,049 Specialty Lending 148,264 5,374 1,693 7,067 155,331 20,317 175,648 Total 1,135,622 9,104 10,302 19,406 1,155,028 341,669 1,496,697 Commercial Land Small Business Banking 329,638 — 2,243 2,243 331,881 94,274 426,155 Total 329,638 — 2,243 2,243 331,881 94,274 426,155 Total $ 4,302,459 $ 19,782 $ 27,033 $ 46,815 $ 4,349,274 $ 815,374 $ 5,164,648 Net deferred (fees) costs $ (19,718 ) Loan and Leases, Net of unearned $ 5,144,930 (1) Total loans and leases include $2.75 billion of U.S. government guaranteed loans as of March 31, 2021, of which $19.2 million is 90 days or more past due, $1.2 million is past due 30-89 days and $2.73 billion are current. Total loans and leases include $2.61 billion of U.S. government guaranteed loans as of December 31, 2020, of which $12.9 million is 90 days or more past due, $16.7 million is past due 30-89 days and $2.58 billion are current. (2) The Company measures the carrying value of the retained portion of loans sold at fair value under ASC Subtopic 825-10. See Note 9. Fair Value of Financial Instruments for additional information. Credit Quality Indicators The following tables presents asset quality indicators by portfolio class and origination year. See Note 5. Loans and Leases Held for Investment and Credit Quality in the Company’s 2020 Form 10-K for additional discussion around the asset quality indicators that the Company uses to manage and monitor credit risk. Term Loans and Leases Amortized Cost Basis by Origination Year 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total 1,2 March 31, 2021 Small Business Banking Risk Grades 1 - 4 $ 174,311 $ 799,012 $ 491,138 $ 277,191 $ 242,859 $ 198,955 $ 36,619 $ 1,794 $ 2,221,879 Risk Grade 5 — 19,387 76,377 70,633 42,121 14,779 1,682 434 225,413 Risk Grades 6 - 8 — 92 13,899 14,572 23,664 19,073 1,002 199 72,501 Total 174,311 818,491 581,414 362,396 308,644 232,807 39,303 2,427 2,519,793 Specialty Lending Risk Grades 1 - 4 118,627 295,067 95,893 44,784 41,547 — 52,833 929 649,680 Risk Grade 5 250 7,674 6,832 967 11,368 — 2,160 — 29,251 Risk Grades 6 - 8 — — — 8,636 — 5,307 136 — 14,079 Total 118,877 302,741 102,725 54,387 52,915 5,307 55,129 929 693,010 Paycheck Protection Program Risk Grades 1 - 4 507,428 971,567 — — — — — — 1,478,995 Risk Grade 5 — — — — — — — — — Risk Grades 6 - 8 — — — — — — — — — Total 507,428 971,567 — — — — — — 1,478,995 Total $ 800,616 $ 2,092,799 $ 684,139 $ 416,783 $ 361,559 $ 238,114 $ 94,432 $ 3,356 $ 4,691,798 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total 1,2 December 31, 2020 Small Business Banking Risk Grades 1 - 4 $ 724,506 $ 475,593 $ 287,712 $ 230,653 $ 159,877 $ 59,065 $ 32,373 $ 1,392 $ 1,971,171 Risk Grade 5 16,080 59,595 62,857 44,478 11,203 3,666 2,131 212 200,222 Risk Grades 6 - 8 81 8,976 14,639 15,090 11,424 8,418 631 209 59,468 Total 740,667 544,164 365,208 290,221 182,504 71,149 35,135 1,813 2,230,861 Specialty Lending Risk Grades 1 - 4 296,537 96,553 48,930 40,626 — — 55,229 632 538,507 Risk Grade 5 7,672 6,379 2,752 18,718 — — 1,711 — 37,232 Risk Grades 6 - 8 — — 8,635 — 5,782 — 77 — 14,494 Total 304,209 102,932 60,317 59,344 5,782 — 57,017 632 590,233 Paycheck Protection Program Risk Grades 1 - 4 1,528,180 — — — — — — — 1,528,180 Risk Grade 5 — — — — — — — — — Risk Grades 6 - 8 — — — — — — — — — Total 1,528,180 — — — — — — — 1,528,180 Total $ 2,573,056 $ 647,096 $ 425,525 $ 349,565 $ 188,286 $ 71,149 $ 92,152 $ 2,445 $ 4,349,274 (1) Total loans and leases include $2.75 billion of U.S. government guaranteed loans as of March 31, 2021, segregated by risk grade as follows: Risk Grades 1 – 4 = $2.57 billion, Risk Grade 5 = $141.1 million, Risk Grades 6 – 8 = $47.6 million. As of December 31, 2020, total loans and leases include $2.61 billion of U.S. government guaranteed loans, segregated by risk grade as follows: Risk Grades 1 – 4 = $2.44 billion, Risk Grade 5 = $128.0 million, Risk Grades 6 – 8 = $40.9 million. Total loans and leases exclude loans accounted for under the fair value option. (2) Excludes $790.8 million and $815.4 million of loans accounted for under the fair value option as of March 31, 2021 and December 31, 2020, respectively. Nonaccrual Loans and Leases As of March 31, 2021 and December 31, 2020 there were no loans greater than 90 days past due and still accruing. There was no interest income recognized on nonaccrual loans and leases during the three months ended March 31, 2021 and 2020. Nonaccrual loans and leases are generally included in the held for investment portfolio. Accrued interest receivable on loans totaled $38.1 million and $41.0 million at March 31, 2021 and December 31, 2020, respectively, and is included in other assets in the accompanying Unaudited Condensed Consolidated Balance Sheets. Nonaccrual loans and leases held for investment as of March 31, 2021 and December 31, 2020 are as follows: March 31, 2021 Loan and Lease Balance 1 Guaranteed Balance Unguaranteed Balance Unguaranteed Exposure with No ACL Commercial & Industrial Small Business Banking $ 23,249 $ 15,612 $ 7,637 $ 271 Total 23,249 15,612 7,637 271 Construction & Development Specialty Lending 3,723 — 3,723 3,723 Total 3,723 — 3,723 3,723 Commercial Real Estate Small Business Banking 21,738 10,409 11,329 6,054 Specialty Lending 6,606 5,071 1,535 1,228 Total 28,344 15,480 12,864 7,282 Commercial Land Small Business Banking 2,055 1,541 514 — Total 2,055 1,541 514 — Total $ 57,371 $ 32,633 $ 24,738 $ 11,276 December 31, 2020 Loan and Lease Balance 1 Guaranteed Balance Unguaranteed Balance Unguaranteed Exposure with No ACL Commercial & Industrial Small Business Banking $ 17,992 $ 12,046 $ 5,946 $ — Total 17,992 12,046 5,946 — Construction & Development Specialty Lending 3,723 — 3,723 3,723 Total 3,723 — 3,723 3,723 Commercial Real Estate Small Business Banking 15,085 6,725 8,360 5,327 Specialty Lending 7,068 5,533 1,535 — Total 22,153 12,258 9,895 5,327 Commercial Land Small Business Banking 2,242 1,728 514 — Total 2,242 1,728 514 — Total $ 46,110 $ 26,032 $ 20,078 $ 9,050 (1) Excludes nonaccrual loans accounted for under the fair value option. See Note 9. Fair Value of Financial Instruments for additional information. The following table presents the amortized cost basis of collateral-dependent loans and leases, which are individually evaluated to determine expected credit losses, as of March 31, 2021 and December 31, 2020: Total Collateral Dependent Loans Unguaranteed Portion March 31, 2021 Real Estate Business Assets Other Real Estate Business Assets Other Allowance for Credit Losses Commercial & Industrial Small Business Banking $ 2,779 $ 4,010 $ 1,615 $ 2,031 $ 120 $ 338 $ 495 Total 2,779 4,010 1,615 2,031 120 338 495 Construction & Development Specialty Lending 3,767 — — 3,767 — — — Total 3,767 — — 3,767 — — — Commercial Real Estate Small Business Banking 18,800 251 330 10,407 9 338 296 Specialty Lending 6,617 — — 1,546 — — 23 Total 25,417 251 330 11,953 9 338 319 Commercial Land Small Business Banking 2,075 — — 534 — — 309 Total 2,075 — — 534 — — 309 Total $ 34,038 $ 4,261 $ 1,945 $ 18,285 $ 129 $ 676 $ 1,123 Total Collateral Dependent Loans Unguaranteed Portion December 31, 2020 Real Estate Business Assets Other Real Estate Business Assets Other Allowance for Credit Losses Commercial & Industrial Small Business Banking $ 1,279 $ 9,440 $ 197 $ 531 $ 4,077 $ 66 $ 1,281 Total 1,279 9,440 197 531 4,077 66 1,281 Construction & Development Specialty Lending 3,767 — — 3,767 — — — Total 3,767 — — 3,767 — — — Commercial Real Estate Small Business Banking 11,568 258 332 6,873 9 335 175 Specialty Lending 13,196 — — 7,663 — — 23 Total 24,764 258 332 14,536 9 335 198 Commercial Land Small Business Banking 2,263 — — 534 — — 302 Total 2,263 — — 534 — — 302 Total $ 32,073 $ 9,698 $ 529 $ 19,368 $ 4,086 $ 401 $ 1,781 Allowance for Credit Losses - Loans and Leases The following table details activity in the ACL by portfolio segment allowance for the periods presented: Three Months Ended Commercial & Industrial Construction & Development Commercial Real Estate Commercial Land Total March 31, 2021 Beginning Balance $ 26,941 $ 5,663 $ 18,148 $ 1,554 $ 52,306 Charge offs (152 ) — (517 ) (12 ) (681 ) Recoveries 9 — 1,656 — 1,665 Provision (221 ) 224 (641 ) (235 ) (873 ) Ending Balance $ 26,577 $ 5,887 $ 18,646 $ 1,307 $ 52,417 March 31, 2020 Beginning Balance, prior to adoption of ASC 326 $ 15,757 $ 2,732 $ 8,427 $ 1,318 $ 28,234 Impact of adopting ASC 326 (4,561 ) 1,131 1,916 193 (1,321 ) Charge offs (2,345 ) — (109 ) (408 ) (2,862 ) Recoveries 35 — 28 — 63 Provision 7,451 960 2,848 533 11,792 Ending Balance $ 16,337 $ 4,823 $ 13,110 $ 1,636 $ 35,906 The following tables represent the types of TDRs that were made during the periods presented: Three Months Ended March 31, 2021 Interest Only Payment Deferral Extend Amortization Other (1) Total TDRs (2) Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Commercial & Industrial Small Business Banking — $ — 1 $ 3,269 — $ — — $ — 1 $ 3,269 Total — — 1 3,269 — — — — 1 3,269 Commercial Real Estate Small Business Banking — — 1 629 — — 1 3,141 2 3,770 Total — — 1 629 — — 1 3,141 2 3,770 Total — $ — 2 $ 3,898 — $ — 1 $ 3,141 3 $ 7,039 (1) Includes one small business banking with extend amortization and a rate concession TDR. (2) Excludes loans accounted for under the fair value option. See Note 9. Fair Value of Financial Instruments for additional information. Three Months Ended March 31, 2020 Interest Only Payment Deferral Extend Amortization Other Total TDRs (1) Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Commercial & Industrial Small Business Banking — $ — 2 $ 1,487 — $ — — $ — 2 $ 1,487 Specialty Lending — — — — 1 973 — — 1 973 Total — — 2 1,487 1 973 — — 3 2,460 Commercial Real Estate Small Business Banking — — 1 3,589 — — — — 1 3,589 Total — — 1 3,589 — — — — 1 3,589 Total — $ — 3 $ 5,076 1 $ 973 — $ — 4 $ 6,049 (1) Excludes loans accounted for under the fair value option. See Note 9. Fair Value of Financial Instruments for additional information. One TDR that was modified within the twelve months ended March 31, 2021 subsequently defaulted during the three months ended March 31, 2021. The TDR that defaulted was a Commercial Real Estate Small Business Banking loan that had previously been modified for a payment deferral and had a recorded investment of $629 thousand at March 31, 2021. No TDRs that were modified within the twelve months ended March 31, 2020 subsequently defaulted during the three months ended March 31, 2020.

Leases

Leases	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Leases	Note 6. Leases Lessor Equipment Leasing The Company purchases new equipment for the purpose of leasing such equipment to customers within its verticals. Equipment purchased to fulfill commitments to commercial renewable energy projects is rented out under operating leases while leases of equipment outside of the renewable energy vertical are generally direct financing leases. Accordingly, leased assets under operating leases are included in premises and equipment while leased assets under direct financing leases are included in loans and leases held for investment. Direct Financing Leases Interest income on direct financing leases is recognized when earned. Unearned interest is recognized over the lease term on a basis which results in a constant rate of return on the unrecovered lease investment. The term of each lease is generally 3-7 years which is consistent with the useful life of the equipment with no residual value. The gross lease payments receivable and the net investment included in accounts receivable for such leases are as follows: March 31, 2021 December 31, 2020 Gross direct finance lease payments receivable $ 9,741 $ 10,629 Less – unearned interest (1,492 ) (1,685 ) Net investment in direct financing leases $ 8,249 $ 8,944 Future minimum lease payments under finance leases are as follows: As of March 31, 2021 Amount 2021 $ 2,149 2022 2,620 2023 2,182 2024 1,570 2025 1,104 Thereafter 116 Total $ 9,741 Interest income of $186 thousand and $233 thousand was recognized in the three months ended March 31, 2021 and 2020, respectively. Operating Leases The term of each operating lease is generally 10 to 15 years. The Company retains ownership of the equipment and associated tax benefits such as investment tax credits and accelerated depreciation. At the end of the lease term, the lessee has the option to renew the lease for two additional terms or purchase the equipment at the then-current fair market value. Rental revenue from operating leases is recognized on a straight-line basis over the term of the lease. Rental equipment is recorded at cost and depreciated to an estimated residual value on a straight-line basis over the estimated useful life. The useful lives generally range from 20 to 25 years and residual values generally range from 20% to 50%, however, they are subject to periodic evaluation. Changes in useful lives or residual values will impact depreciation expense and any gain or loss from the sale of used equipment. The estimated useful lives and residual values of the Company's leasing equipment are based on industry disposal experience and the Company's expectations for future sale prices. If the Company decides to sell or otherwise dispose of rental equipment, it is carried at the lower of cost or fair value less costs to sell or dispose. Repair and maintenance costs that do not extend the lives of the rental equipment are charged to direct operating expenses at the time the costs are incurred. As of March 31, 2021 and December 31, 2020, the Company had a net investment of $131.2 million and $134.5 million, respectively, in assets included in premises and equipment that are subject to operating leases. Of the net investment, the gross balance of the assets was $163.4 million and $164.3 million as of March 31, 2021 and December 31, 2020 and accumulated depreciation was $32.2 million and $29.8 million as of March 31, 2021 and December 31, 2020, respectively. Depreciation expense recognized on these assets for the three months ended March 31, 2021 and 2020 was $2.4 million. Lease income of $2.4 million was recognized in the three months ended March 31, 2021 and 2020, respectively. A maturity analysis of future minimum lease payments under non-cancelable operating leases is as follows: As of March 31, 2021 Amount 2021 $ 7,083 2022 9,044 2023 9,075 2024 8,808 2025 8,935 Thereafter 31,175 Total $ 74,120

Servicing Assets

Servicing Assets	3 Months Ended
	Mar. 31, 2021
Transfers And Servicing [Abstract]
Servicing Assets	Note 7. Servicing Assets Loans serviced for others are not included in the accompanying Unaudited Condensed Consolidated Balance Sheets. The unpaid principal balances of loans serviced for others requiring recognition of a servicing asset were $2.24 billion and $2.21 billion at March 31, 2021 and December 31, 2020, respectively. The unpaid principal balance for all loans serviced for others was $3.22 billion and $3.21 billion at March 31, 2021 and December 31, 2020, respectively. The following summarizes the activity pertaining to servicing rights: Three Months Ended March 31, 2021 2020 Balance at beginning of period $ 33,918 $ 35,365 Additions, net 2,333 2,859 Fair value changes: Due to changes in valuation inputs or assumptions 2,946 (2,039 ) Decay due to increases in principal paydowns or runoff (1,453 ) (2,653 ) Balance at end of period $ 37,744 $ 33,532 The fair value of servicing rights was determined using a weighted average discount rate of 8.8% on March 31, 2021 and 13.0% on March 31, 2020. The fair value of servicing rights was determined using a weighted average prepayment speed of 18.6% on March 31, 2021 and 17.9% on March 31, 2020, with the actual rate depending on the stratification of the specific right. Changes to fair value are reported in loan servicing asset revaluation within the Unaudited Condensed Consolidated Statements of Income. The fair value of servicing rights is highly sensitive to changes in underlying assumptions. Changes in prepayment speed assumptions typically have the most significant impact on the fair value of servicing rights. Generally, as interest rates rise on variable rate loans, loan prepayments increase due to an increase in refinance activity, which results in a decrease in the fair value of servicing assets, however, weakening economic conditions or significant declines in interest rates can also increase loan prepayment activity. Measurement of fair value is limited to the conditions existing and the assumptions used as of a particular point in time, and those assumptions may not be appropriate if they are applied at a different time.

Borrowings

Borrowings	3 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Borrowings	Note 8. Borrowings Total outstanding borrowings consisted of the following: March 31, 2021 December 31, 2020 Borrowings In March 2021, the Company entered into a 60-month term loan agreement of $50.0 million with a third party correspondent bank. The loan accrues interest at a fixed rate of 2.95% with a monthly payment sufficient to fully amortize the loan, with all remaining unpaid principal and interest due at maturity on March 30, 2026. The Company paid the Lender a non-refundable $325 thousand loan origination fee upon signing of the Note that is presented as a direct deduction from the carrying amount of the loan and will be amortized into interest expense over the life of the loan. $ 49,675 $ — In September 2020, the Company renewed a $50.0 million revolving line of credit originally issued in 2017 with a third party correspondent bank. The line of credit was unsecured and accrued interest at 30-day LIBOR plus 1.15% for a term of 13 months. Payments were interest only with all principal and accrued interest due on October 10, 2021. On March 31, 2021 the remaining outstanding balance of $14.5 million was paid in full and the revolving line was closed. No available credit remains at March 31, 2021. — 14,488 In April 2020, the Company entered into the Federal Reserve Bank's Paycheck Protection Program Liquidity Facility ("PPPLF"). Under the PPPLF, advances must be secured by pledges of loans to small businesses originated by the Company under the U.S. Small Business Administration's 7(a) loan program titled the Paycheck Protection Program. The PPPLF accrues interest at thirty-five basis points and matures at various dates equal to the maturity date of the PPPLF collateral pledged to secure the advance, ranging from April 1, 2022 to March 20, 2026, and will be accelerated on and to the extent of any 7(a) loan forgiveness reimbursement by the SBA for any PPPLF collateral or the date of purchase by the SBA from the borrower of any PPPLF collateral. On the maturity date of each advance, the Company shall repay the advance plus accrued interest. This $1.41 billion borrowing was fully advanced at March 31, 2021. 1,410,785 1,527,596 Other long term debt (1) 5,501 9 Total borrowings $ 1,465,961 $ 1,542,093 (1) Includes finance leases and loan participations accounted for as secured borrowings. The Company may purchase federal funds through unsecured federal funds lines of credit with various correspondent banks, which totaled $167.5 million as of March 31, 2021 and December 31, 2020. These lines are intended for short-term borrowings and are subject to restrictions limiting the frequency and terms of advances. These lines of credit are payable on demand and bear interest based upon the daily federal funds rate. The Company had no outstanding balances on the lines of credit as of March 31, 2021 and December 31, 2020. The Company has entered into a repurchase agreement with a third party for $5.0 million as of March 31, 2021 and December 31, 2020. At the time the Company enters into a transaction with the third party, the Company must transfer securities or other assets against the funds received. The terms of the agreement are set at market conditions at the time the Company enters into such transaction. The Company had no outstanding balance on the repurchase agreement as of March 31, 2021 and December 31, 2020. On June 18, 2018, the Company entered into a borrowing agreement with the Federal Home Loan Bank of Atlanta. These borrowings must be secured with eligible collateral approved by the Federal Home Loan Bank of Atlanta. At March 31, 2021 and December 31, 2020, the Company had approximately $1.96 billion and $2.01 billion, respectively, in borrowing capacity available under these agreements. There is no collateral pledged and no advances outstanding as of March 31, 2021 and December 31, 2020. The Company may borrow funds through the Federal Reserve Bank’s discount window. These borrowings are secured by a blanket floating lien on qualifying loans with a balance of $2.23 billion and $2.22 billion as of March 31, 2021 and December 31, 2020, respectively. At March 31, 2021 and December 31, 2020, the Company had approximately $1.79 billion and $1.77 billion, respectively, in borrowing capacity available under these arrangements with no outstanding balance as of March 31, 2021 and December 31, 2020.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Note 9. Fair Value of Financial Instruments Fair Value Hierarchy There are three levels of inputs in the fair value hierarchy that may be used to measure fair value. Financial instruments are considered Level 1 when valuation can be based on quoted prices in active markets for identical assets or liabilities. Level 2 financial instruments are valued using quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or models using inputs that are observable or can be corroborated by observable market data of substantially the full term of the assets or liabilities. Financial instruments are considered Level 3 when their values are determined using pricing models, discounted cash flow methodologies or similar techniques and at least one significant model assumption or input is unobservable and when determination of the fair value requires significant management judgment or estimation. Recurring Fair Value The following sections provide a description of the valuation methodologies used for instruments measured at fair value on a recurring basis, as well as the general classification of such instruments pursuant to the fair value hierarchy: Investment securities: Where quoted prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. Level 1 securities would include highly liquid government bonds, mortgage products and exchange traded equities. If quoted market prices are not available, then fair values are estimated by using pricing models, quoted prices of securities with similar characteristics, discounted cash flow or at net asset value per share. Level 2 securities would include U.S. government agency securities, mortgage-backed securities, obligations of states and political subdivisions and certain corporate, asset backed mutual fund and other securities. In certain cases where there is limited activity or less transparency around inputs to the valuation, securities are classified within Level 3 of the valuation hierarchy. Loans held for sale: The fair values of loans held for sale are determined by discounting estimated cash flows using interest rates approximating prevailing market rates for similar loans adjusted to reflect the inherent credit risk. Due to the nature of the valuation inputs, loans held for sale are classified within Level 3 of the valuation hierarchy. Loans held for investment: The fair values of loans held for investment are typically determined based on discounted cash flow analyses using market-based interest rate spreads. Discounted cash flow analyses are adjusted, as appropriate, to reflect current market conditions and borrower-specific credit risk. If the loan is collateral dependent, the fair value is determined based on the difference between the fair value of the collateral and the amortized cost basis of the loan as of the measurement date. Fair value of the loan’s collateral is determined by appraisals, independent valuation, or management’s estimation of fair value which is then adjusted for the cost related to liquidation of the collateral. Due to the nature of the valuation inputs, loans held for investment are classified within Level 3 of the valuation hierarchy. Servicing assets: Servicing rights do not trade in an active, open market with readily observable prices. While sales of servicing rights do occur, the precise terms and conditions typically are not readily available. Accordingly, the Company estimates the fair value of servicing rights using discounted cash flow models incorporating numerous assumptions from the perspective of a market participant including servicing income, servicing costs, market discount rates and prepayment speeds. Due to the nature of the valuation inputs, servicing rights are classified within Level 3 of the valuation hierarchy. Mutual fund: The below mutual fund is registered with the Securities and Exchange Commission as a closed-end, non-diversified management investment company and operates as an interval fund. The fund primarily invests in the unguaranteed portion of SBA504 First Lien Loans secured by owner-occupied commercial real estate. This investment is valued using quoted prices in markets that are not active and is classified as Level 2 within the valuation hierarchy. Equity warrant assets: Fair value measurements of equity warrant assets of private companies are priced based on a Black-Scholes option pricing model to estimate the asset value by using stated strike prices, option expiration dates, risk-free interest rates and option volatility assumptions. Option volatility assumptions used in the Black-Scholes model are based on public companies that operate in similar industries as the companies in the Company’s private company portfolio. Option expiration dates are modified to account for estimates of actual life relative to stated expiration. Values are further adjusted for a general lack of liquidity due to the private nature of the associated underlying company. The Company classifies equity warrant assets within Level 3 of the valuation hierarchy. The tables below present the recorded amount of assets and liabilities measured at fair value on a recurring basis. March 31, 2021 Total Level 1 Level 2 Level 3 Investment securities available-for-sale US government agencies $ 15,829 $ — $ 15,829 $ — Mortgage-backed securities 755,775 — 755,775 — Municipal bonds 1 3,573 — 3,477 96 Loans held for sale 35,936 — — 35,936 Loans held for investment 790,797 — — 790,797 Servicing assets 2 37,744 — — 37,744 Mutual fund 2,331 — 2,331 — Equity warrant assets 3 1,314 — — 1,314 Total assets at fair value $ 1,643,299 $ — $ 777,412 $ 865,887 December 31, 2020 Total Level 1 Level 2 Level 3 Investment securities available-for-sale US government agencies $ 15,919 $ — $ 15,919 $ — Mortgage-backed securities 730,454 — 730,454 — Municipal bonds 1 3,725 — 3,629 96 Loans held for sale 36,111 — — 36,111 Loans held for investment 815,374 — — 815,374 Servicing assets 2 33,918 — — 33,918 Mutual fund 2,351 — 2,351 — Equity warrant assets 3 908 — — 908 Total assets at fair value $ 1,638,760 $ — $ 752,353 $ 886,407 (1) During the three months ended March 31, 2021, the Company recorded no fair value adjustment gain/loss. During the three months ended March 31, 2020, the Company recorded a fair value adjustment gain of $1 thousand. (2) See Note 7 for a rollforward of recurring Level 3 fair values for servicing assets. (3) During the three months ended March 31, 2021, the Company entered into equity warrant assets with a fair value of $21 thousand at the time of issuance and recorded net gains on derivative instruments of $385 thousand. During the three months ended March 31, 2020, the Company entered into equity warrant assets with a fair value of $164 thousand at the time of issuance and recorded net losses on derivative instruments of $32 thousand. Fair Value Option Prior to January 1, 2021, the Company elected to account for retained participating interests of all government guaranteed loans under the fair value option in order to align the accounting presentation with the Company’s viewpoint of the economics of the loans. Interest income on loans accounted for under the fair value option is recognized in loans and fees on loans on the Company’s Unaudited Condensed Consolidated Statements of Income. There were no loans accounted for under the fair value option that were 90 days or more past due and still accruing interest at March 31, 2021 or December 31, 2020. The unpaid principal balance of unguaranteed exposure for nonaccruals was $7.4 million and $6.9 million at March 31, 2021 and December 31, 2020, respectively. The following tables provide more information about the fair value carrying amount and the unpaid principal outstanding of loans accounted for under the fair value option at March 31, 2021 and December 31, 2020. March 31, 2021 Total Loans Nonaccruals 90 Days or More Past Due Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Option Elections Loans held for sale $ 35,936 $ 37,923 $ (1,987 ) $ — $ — $ — $ — $ — $ — Loans held for investment 790,797 814,729 (23,932 ) 40,234 43,973 (3,739 ) 26,249 29,089 (2,840 ) $ 826,733 $ 852,652 $ (25,919 ) $ 40,234 $ 43,973 $ (3,739 ) $ 26,249 $ 29,089 $ (2,840 ) December 31, 2020 Total Loans Nonaccruals 90 Days or More Past Due Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Option Elections Loans held for sale $ 36,111 $ 38,135 $ (2,024 ) $ — $ — $ — $ — $ — $ — Loans held for investment 815,374 845,082 (29,708 ) 35,499 39,318 (3,819 ) 25,532 28,741 (3,209 ) $ 851,485 $ 883,217 $ (31,732 ) $ 35,499 $ 39,318 $ (3,819 ) $ 25,532 $ 28,741 $ (3,209 ) The following table presents the net gains (losses) from changes in fair value. Three Months Ended March 31, Gains (Losses) on Loans Accounted for under the Fair Value Option 2021 2020 Loans held for sale $ 36 $ 120 Loans held for investment 4,182 (10,758 ) $ 4,218 $ (10,638 ) Gains/(Losses) related to borrower-specific credit risk were $191 thousand for the three months ended March 31, 2021 and $(922) thousand for the three months ended March 31, 2020. The following tables summarize the activity pertaining to loans accounted for under the fair value option. Three Months Ended March 31, Loans held for sale 2021 2020 Balance at beginning of period $ 36,111 $ 16,198 Issuances & repurchases — 3,045 Fair value changes 36 120 Sales — — Settlements (211 ) (212 ) Balance at end of period $ 35,936 $ 19,151 Three Months Ended March 31, Loans held for investment 2021 2020 Balance at beginning of period $ 815,374 $ 824,520 Issuances & repurchases 5,570 61,611 Fair value changes 4,184 (10,758 ) Settlements (34,331 ) (43,947 ) Balance at end of period $ 790,797 $ 831,426 In the first quarter of 2021 the Company chose not to elect the fair value for all retained participating interests arising from new government guaranteed loan sales. Management made this change of election in alignment with its ongoing effort to reduce volatility and drive more predictable revenue. In accordance with accounting standards, any loans for which fair value was previously elected will continue to be measured as such Non-recurring Fair Value The following sections provide a description of the valuation methodologies used for instruments measured at fair value on a non-recurring basis, as well as the general classification of such instruments pursuant to the fair value hierarchy: Collateral dependent loans : Loans are considered collateral dependent when the Company has determined that foreclosure of the collateral is probable or when a borrower is experiencing financial difficulty and the loan is expected to be repaid substantially through the operation or sale of collateral. A collateral dependent loan’s ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the loan as of the measurement date. Fair value of the loan’s collateral is determined by appraisals, independent valuation, or management’s estimation of fair value which is then adjusted for the cost related to liquidation of the collateral. Collateral dependent loans are generally classified as Level 3 based on management’s judgment and estimation. Loans with agreed upon sales prices are classified as Level 1. Foreclosed assets: Foreclosed real estate is adjusted to fair value less selling costs upon transfer of the loans to foreclosed real estate. Subsequently, foreclosed real estate is carried at the lower of carrying value or fair value less selling costs. Fair value is based upon independent market prices, appraised values of the collateral or management’s estimation of the value of the collateral. Given the lack of observable market prices for identical properties and market discounts applied to appraised values, the Company generally classifies foreclosed assets as nonrecurring Level 3. Long-lived asset held for sale: Long-lived assets held for sale are carried at the lower of carrying value or fair value less selling costs. Fair value is based upon an independent market valuation of the property. Given the lack of observable market prices for identical assets and market discounts applied to market prices, the Company generally classifies long-lived assets held for sale as nonrecurring Level 3. Equity security investments with a non-readily determinable fair value: Equity security investments are measured at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer. When an observable price change in an orderly transaction occurs for an identical investment of the same issuer, the investment is generally classified as nonrecurring Level 1 within the valuation hierarchy. When an observable price change in an orderly transaction occurs for a similar investment of the same issuer, the investment is generally classified as nonrecurring Level 2 within the valuation hierarchy. The tables below present the recorded amount of assets and liabilities measured at fair value on a non-recurring basis. March 31, 2021 Total Level 1 Level 2 Level 3 Collateral dependent loans $ 6,935 $ — $ — $ 6,935 Foreclosed assets 4,185 — — 4,185 Total assets at fair value $ 11,120 $ — $ — $ 11,120 December 31, 2020 Total Level 1 Level 2 Level 3 Collateral dependent loans $ 4,159 $ — $ — $ 4,159 Foreclosed assets 4,155 — — 4,155 Long-lived asset held for sale 8,874 8,874 — — Equity security investment with a non-readily determinable fair value 25,367 — 25,367 — Total assets at fair value $ 42,555 $ 8,874 $ 25,367 $ 8,314 Level 3 Analysis For Level 3 assets and liabilities measured at fair value on a recurring or non-recurring basis as of March 31, 2021 and December 31, 2020 the significant unobservable inputs used in the fair value measurements were as follows: March 31, 2021 Level 3 Assets with Significant Unobservable Inputs Fair Value Valuation Technique Significant Unobservable Inputs Range Recurring fair value Municipal bond $ 96 Discounted expected cash flows Discount rate Prepayment speed 4.5% 5.0% Loans held for sale $ 35,936 Discounted expected cash flows Discount rate Prepayment speed 0.8% to 17.4% WAVG 19.0% Loans held for investment $ 790,797 Discounted expected cash flows Discounted appraisals Loss rate Discount rate Prepayment speed Appraisal adjustments 0.0% to 76.3% (WAVG 1.2%) 0.8% to 17.4% WAVG 19.0% 10.0% to 65.0% Equity warrant assets $ 1,314 Black-Scholes option pricing model Volatility Risk-free interest rate Marketability discount Remaining life 26.6% to 89.4% 0.92% to 1.74% 20.0% 4-10 years Non-recurring fair value Collateral dependent loans $ 6,935 Discounted appraisals Appraisal adjustments (1) 10.0% to 65.0% Foreclosed assets $ 4,185 Discounted appraisals Appraisal adjustments (1) 7.5% to 10.0% December 31, 2020 Level 3 Assets with Significant Unobservable Inputs Fair Value Valuation Technique Significant Unobservable Inputs Range Recurring fair value Municipal bond $ 96 Discounted expected cash flows Discount rate Prepayment speed 4.3% 5.0% Loans held for sale $ 36,111 Discounted expected cash flows Discount rate Prepayment speed 4.2% to 18.5% WAVG 19.0% Loans held for investment $ 815,374 Discounted expected cash flows Discounted appraisals Loss rate Discount rate Prepayment speed Appraisal adjustments 0.0% to 73.2% (WAVG 1.5%) 4.2% to 18.5% WAVG 19.0% 10.0% to 83.0% Equity warrant assets $ 908 Black-Scholes option pricing model Volatility Risk-free interest rate Marketability discount Remaining life 26.5-87.1% 0.36% to 0.93% 20.0% 5-10 years Non-recurring fair value Collateral dependent loans $ 4,159 Discounted appraisals Appraisal adjustments (1) 10.0% to 83.0% Foreclosed assets $ 4,155 Discounted appraisals Appraisal adjustments (1) 10.0% to 20.0% (1) Appraisals may be adjusted by management for customized discounting criteria, estimated sales costs, and other qualitative adjustments. Estimated Fair Value of Other Financial Instruments GAAP also requires disclosure of the fair value of financial instruments carried at book value on the consolidated balance sheets. The carrying amounts and estimated fair values of the Company’s financial instruments not measured at fair value on a recurring or non-recurring basis are as follows: March 31, 2021 Carrying Amount Quoted Price In Active Markets for Identical Assets /Liabilities (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Financial assets Cash and due from banks $ 630,081 $ 630,081 $ — $ — $ 630,081 Federal funds sold 5,461 5,461 — — 5,461 Certificates of deposit with other banks 6,500 6,839 — — 6,839 Loans held for sale 1,040,805 — — 1,136,156 1,136,156 Loans and leases, net of allowance for credit losses on loans and leases 4,613,540 — — 4,722,518 4,722,518 Financial liabilities Deposits 6,316,004 — 6,227,312 — 6,227,312 Borrowings 1,465,961 — — 1,451,459 1,451,459 December 31, 2020 Carrying Amount Quoted Price In Active Markets for Identical Assets /Liabilities (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Financial assets Cash and due from banks $ 297,167 $ 297,167 $ — $ — $ 297,167 Federal funds sold 21,153 21,153 — — 21,153 Certificates of deposit with other banks 6,500 6,906 — — 6,906 Loans held for sale 1,139,359 — — 1,235,122 1,235,122 Loans and leases, net of allowance for credit losses on loans and leases 4,277,250 — — 4,366,489 4,366,489 Financial liabilities Deposits 5,712,828 — 5,711,781 — 5,711,781 Borrowings 1,542,093 — — 1,542,171 1,542,171

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 10. Commitments and Contingencies Litigation In the normal course of business, the Company is involved in various legal proceedings. Management believes that the outcome of such proceedings will not materially affect the financial position, results of operations or cash flows of the Company. On March 12, 2021, a purported class action was filed against the Company in the United States District Court for the Eastern District of North Carolina, Joseph McAlear, individually and on behalf of all others similarly situated v. Live Oak Bancshares, Inc. et al Financial Instruments with Off-balance-sheet Risk The Company is party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. These instruments involve, to varying degrees, credit risk in excess of the amount recognized in the balance sheet. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as for on-balance-sheet instruments. A summary of the Company’s commitments is as follows: March 31, 2021 December 31, 2020 Commitments to extend credit $ 2,526,132 $ 2,054,910 Standby letters of credit 5,929 22,913 Total unfunded off-balance-sheet credit risk $ 2,532,061 $ 2,077,823 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. Commitments generally have 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 do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the party. Collateral held varies, but may include accounts receivable, inventory, property and equipment, residential real estate and income-producing commercial properties. Commitment letters are issued after approval of the loan by the Credit Department and generally expire ninety days after issuance. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. Collateral held varies as specified above and is required in instances which the Company deems necessary. As of March 31, 2021 and December 31, 2020, the Company had unfunded commitments to provide capital contributions for on-balance-sheet investments in the amount of $12.4 million and $15.8 million, respectively. Concentrations of Credit Risk Although the Company is not subject to any geographic concentrations, a substantial amount of the Company’s loans, leases, and commitments to extend credit have been granted to customers in the agriculture, healthcare and veterinary verticals. The concentrations of credit by type of loan are set forth in Note 5. The distribution of commitments to extend credit approximates the distribution of loans outstanding. The Company does not have a significant number of credits to any single borrower or group of related borrowers whereby their retained unguaranteed exposure exceeds $15.0 million, except for 14 relationships that have a retained unguaranteed exposure of $321.2 million of which $132.2 million of the unguaranteed exposure has been disbursed. Additionally, the Company has future minimum lease payments due under non-cancelable operating leases totaling $74.1 million, of which $22.4 million is due from one relationship. The Company from time-to-time may have cash and cash equivalents on deposit with financial institutions that exceed federally-insured limits.

Stock Plans

Stock Plans	3 Months Ended
	Mar. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock Plans	Note 11. Stock Plans On March 20, 2015, the Company adopted the 2015 Omnibus Stock Incentive Plan which replaced the previously existing Amended Incentive Stock Option Plan and Nonstatutory Stock Option Plan. Subsequently on May 24, 2016, the 2015 Omnibus Stock Incentive Plan was amended to authorize awards covering a maximum of 7,000,000 common voting shares and has an expiration date of March 20, 2025. On May 15, 2018, the Amended and Restated 2015 Omnibus Stock Incentive Plan was amended to authorize awards covering a maximum of 8,750,000 common voting shares. Options or restricted shares granted under the Amended and Restated 2015 Omnibus Stock Incentive Plan (the "Plan") expire no more than 10 years from the date of grant. Exercise prices under the Plan are set by the Board of Directors at the date of grant, but shall not be less than 100% of fair market value of the related stock at the date of the grant. Options vest over a minimum of three years from the date of the grant. Restricted stock grants vest in equal installments ranging from immediate vesting to over a seven-year Stock Options There were no stock options granted during the three months ended March 31, 2021. At March 31, 2021, unrecognized compensation costs relating to stock options amounted to $1.9 million which will be recognized over a weighted average period of 1.42 years. Restricted Stock Restricted stock awards are authorized in the form of restricted stock awards or units ("RSU"s) and restricted stock awards or units with a market price condition ("Market RSU"s). RSUs have a restriction based on the passage of time and may also have a restriction based on a non-market-related performance criteria. The fair value of the RSUs is based on the closing price on the date of the grant. For the quarter ended March 31, 2021, 397,500 Market RSUs met the performance stock price conditions for the $45.00, $48.00, and $50.00 stock price for twenty (20) consecutive trading days. The remaining expense of $2.1 million was fully recognized due to the accelerated vesting. The weighted average grant date fair value for the 397,500 vested Market RSUs was $7.89. Remaining Market RSUs at March 31, 2021 have a restriction based on the passage of time, but also have a restriction based on market price criteria related to the Company’s share price closing at $55.00 per share for at least twenty (20) consecutive trading days at any time prior to expiration date. The amount of Market RSUs earned will not exceed 100% of the Market RSUs awarded. The fair value of the Market RSUs and the implied service period is calculated using the Monte Carlo simulation method. For the three months ended March 31, 2021, 792,893 RSUs were granted with a weighted average grant date fair value of $50.66. Of the RSUs granted in the three month period, 288,680 were awarded in connection with annual long term incentive stock compensation and 500,000 were awarded as a special retention RSU award. At March 31, 2021, unrecognized compensation costs relating to RSUs amounted to $51.6 million which will be recognized over a weighted average period of 5.18 years. There were no Market RSUs granted during the three months ended March 31, 2021. At March 31, 2021, unrecognized compensation costs relating to Market RSUs amounted to $1.1 million which will be recognized over a weighted average period of 0.02 years.

Segments

Segments	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Segments	Note 12. Segments The Company's management reporting process measures the performance of its operating segments based on internal operating structure, which is subject to change from time to time. Accordingly, the Company operates two reportable segments for management reporting purposes as discussed below: Banking - This segment specializes in providing financing services to small businesses nationwide in targeted industries and deposit-related services to small businesses, consumers and other customers nationwide. The primary source of revenue for this segment is net interest income and secondarily the origination and sale of government guaranteed loans. Fintech - This segment is involved in making strategic investments into emerging financial technology companies. The primary sources of revenue for this segment are principally gains and losses on equity method and equity security investments and management fees. The Fintech segment is comprised of the Company's wholly owned subsidiaries Live Oak Ventures, Canapi and the Bank's investment in Apiture. The following tables provide financial information for the Company's segments. The information provided under the caption “Other” represents operations not considered to be reportable segments and/or general operating expenses of the Company, and includes the parent company, other non-bank subsidiaries and elimination adjustments to reconcile the results of the operating segments to the consolidated financial statements prepared in conformity with GAAP. Banking Fintech Other Consolidated Three months ended March 31, 2021 Interest income $ 88,099 $ 122 $ 4 $ 88,225 Interest expense 18,165 — 110 18,275 Net interest income 69,934 122 (106 ) 69,950 (Recovery of) provision for loan and lease credit losses (873 ) — — (873 ) Noninterest income 30,524 (4 ) 537 31,057 Noninterest expense 55,625 1,020 1,627 58,272 Income tax expense (benefit) 4,650 5 (474 ) 4,181 Net income (loss) $ 41,056 $ (907 ) $ (722 ) $ 39,427 Total assets $ 8,281,729 $ 91,662 $ 44,484 $ 8,417,875 Three months ended March 31, 2020 Interest income $ 63,448 $ — $ 25 $ 63,473 Interest expense 23,255 — 57 23,312 Net interest income 40,193 — (32 ) 40,161 Provision for loan and lease credit losses 11,792 — — 11,792 Noninterest income 5,964 (880 ) 658 5,742 Noninterest expense 46,687 1,490 1,314 49,491 Income tax benefit (4,170 ) (244 ) (3,364 ) (7,778 ) Net (loss) income $ (8,152 ) $ (2,126 ) $ 2,676 $ (7,602 ) Total assets $ 5,133,447 $ 84,366 $ 55,756 $ 5,273,569

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	Note 13. Subsequent Event On April 27, 2021, the Company’s equity security investee, Greenlight Financial Technology, Inc. (“Greenlight”), announced the close of $260.0 million in newly issued shares in an orderly transaction. As a result of this transaction the Company expects to recognize a pre-tax non-cash gain of from the increase in the observable fair market value of its investment in Greenlight In assessing the effect of transactions at Greenlight giving rise to this gain, the Company reevaluated its ownership percentage and other factors to reassess the existence of significant influence and determined that this investment should continue to be accounted for as an equity security investment

Basis of Presentation (Policies

Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
General	General In the opinion of management, all adjustments necessary for a fair presentation of the financial position and results of operations for the periods presented have been included, and all intercompany transactions have been eliminated in consolidation. Results of operations for the three months ended March 31, 2021 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2021. The Unaudited Condensed Consolidated Balance Sheet as of December 31, 2020 has been derived from the audited consolidated financial statements contained in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, filed with the Securities Exchange Commission on February 25, 2021 (SEC File No. 001-37497) (the "2020 Annual Report"). A summary description of the significant accounting policies followed by the Company is set forth in Note 1 of the Notes to Consolidated Financial Statements in the Company’s 2020 Annual Report. These unaudited interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes in the Company's 2020 Annual Report. The preparation of financial statements in conformity with United States generally accepted accounting principles, or GAAP, requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and the reported amounts of revenues and expenses during the reporting period. Actual results could differ significantly from those estimates. Amounts in all tables in the Notes to Unaudited Condensed Consolidated Financial Statements have been presented in thousands, except percentage, time period, stock option, share and per share data or where otherwise indicated.
Business Segments	Business Segments Operating segments are components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance. Management has determined that the Company has two significant operating segments: Banking and Fintech, as discussed more fully in Note 12. Segments. In determining the appropriateness of segment definition, the Company considers the criteria of ASC 280, Segment Reporting .
Business Combination	Business Combination On April 1, 2020, the Company acquired 100% of the equity interests of JAM, a registered investment advisor based in Rocky Mount, North Carolina. Goodwill, intangible assets and contingent consideration of $1.8 million, $2.3 million and $2.1 million, respectively, have been recorded by the Company. Intangible assets are almost entirely comprised of customer relationships that are being amortized using the straight-line method over 15 years. As a result of this acquisition, the Bank's subsidiary Live Oak Private Wealth, LLC, expects to broaden service offerings to existing high-net-worth individuals and families, attract new clients from an expanded footprint and benefit from economies of scale. The acquisition did not materially impact the Company's financial position, results of operations or cash flows. Given the impact of the above acquisition was immaterial to the Company and its result of operations, pro forma information has not been included.
Reclassifications	Reclassifications Certain reclassifications have been made to the prior period’s condensed consolidated financial statements to place them on a comparable basis with the current year. Net income and shareholders’ equity previously reported were not affected by these reclassifications .

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	Basic and diluted earnings per share are computed based on the weighted average number of shares outstanding during each period. Diluted earnings per share reflects the potential dilution that could occur upon the exercise of stock options or upon the vesting of restricted stock grants, any of which would result in the issuance of common stock that would then share in the net income of the Company. Three Months Ended March 31, 2021 2020 Basic earnings (loss) per share: Net income (loss) $ 39,427 $ (7,602 ) Weighted-average basic shares outstanding 42,673,615 40,334,179 Basic earnings (loss) per share $ 0.92 $ (0.19 ) Diluted earnings (loss) per share: Net income (loss), for diluted earnings (loss) per share $ 39,427 $ (7,602 ) Total weighted-average basic shares outstanding 42,673,615 40,334,179 Add effect of dilutive stock options and restricted stock grants 2,023,235 739,870 Total weighted-average diluted shares outstanding 44,696,850 41,074,049 Diluted earnings (loss) per share $ 0.88 $ (0.19 ) Anti-dilutive shares — 1,839,601

Securities (Tables)

Securities (Tables)	3 Months Ended
	Mar. 31, 2021
Investments Debt And Equity Securities [Abstract]
Summary of Carrying Amount and Fair Value of Securities	Available-for-Sale The carrying amount of securities and their approximate fair values are reflected in the following table: March 31, 2021 Amortized Cost Unrealized Gains Unrealized Losses Fair Value US government agencies $ 15,442 $ 387 $ — $ 15,829 Mortgage-backed securities 744,462 20,208 8,895 755,775 Municipal bonds 3,262 315 4 3,573 Total $ 763,166 $ 20,910 $ 8,899 $ 775,177 December 31, 2020 US government agencies $ 15,440 $ 479 $ — $ 15,919 Mortgage-backed securities 703,092 28,302 940 730,454 Municipal bonds 3,267 462 4 3,725 Total $ 721,799 $ 29,243 $ 944 $ 750,098
Debt Securities Available-for-Sale in Unrealized Loss Position	The following tables show debt securities available-for-sale in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position. Less Than 12 Months 12 Months or More Total March 31, 2021 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Mortgage-backed securities $ 357,905 $ 8,892 $ 650 $ 3 $ 358,555 $ 8,895 Municipal bonds — — 96 4 96 4 Total $ 357,905 $ 8,892 $ 746 $ 7 $ 358,651 $ 8,899 Less Than 12 Months 12 Months or More Total December 31, 2020 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Mortgage-backed securities $ 156,904 $ 917 $ 1,853 $ 23 $ 158,757 $ 940 Municipal bonds — — 96 4 96 4 Total $ 156,904 $ 917 $ 1,949 $ 27 $ 158,853 $ 944
Summary of Investment Securities by Maturity	The following is a summary of investment securities by maturity: March 31, 2021 Available-for-Sale Amortized cost Fair value US government agencies Within one year $ 5,000 $ 5,007 One to five years 7,513 7,737 Five to ten years 2,929 3,085 Total 15,442 15,829 Mortgage-backed securities One to five years 10,248 10,848 Five to ten years 227,756 237,693 After 10 years 506,458 507,234 Total 744,462 755,775 Municipal bonds After 10 years 3,262 3,573 Total 3,262 3,573 Total $ 763,166 $ 775,177
Summary of Carrying and Ownership Percentage of Each Equity Method Investment	The carrying amount and ownership percentage of each equity investment over which the Company has significant influence at March 31, 2021 and December 31, 2020 is reflected in the following table: March 31, 2021 December 31, 2020 Amount Ownership % Amount Ownership % Apiture, Inc. $ 53,927 39.1 % $ 53,344 39.1 % Canapi Ventures SBIC Fund, LP (1) (3) 15,530 2.9 % 14,843 3.1 % Canapi Ventures Fund, LP (2) (3) 1,780 1.5 % 1,686 1.5 % Other fintech investments in private companies (4) 6,237 Various 1,634 Various Other (5) 3,273 Various 6,421 Various Total $ 80,747 $ 77,928 (1) Includes unfunded commitments of $9.4 million and $11.3 million as of March 31, 2021 and December 31, 2020, respectively. (2) Includes unfunded commitments of $1.0 million as of March 31, 2021 and December 31, 2020. (3) Investee is accounted for under equity method due to the Company's participation as an investment advisor. (4) Other fintech investments include Finxact, Inc., Payrailz, Inc. and Kwipped, Inc. (5) Includes unfunded commitments of $2.9 million at December 31, 2020.
Summary of Carrying Amount of Company Investments in Non Marketable Equity Securities with No Readily Determinable Fair Value and Amounts Recognized in Earnings	The carrying amount of the Company’s investments in non-marketable equity securities with no readily determinable fair value and amounts recognized in earnings for the three months ended March 31, 2021, and on a cumulative basis is reflected in the following table: As of and for the three month period ended March 31, 2021 Amount Cumulative Adjustments Carrying value (1) $ 32,527 Carrying value adjustments: Impairment — $ — Upward changes for observable prices — 18,272 Downward changes for observable prices — (86 ) Net upward change $ — $ 18,186 (1) Includes $2.0 million in unfunded commitments.

Loans and Leases Held for Inv_2

Loans and Leases Held for Investment and Credit Quality (Tables)	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Summary of Total Loans and Leases and Aging Analysis of Portfolio Segments	The following tables present total loans and leases and an aging analysis for the Company’s portfolio segments. Loans and leases are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Current or Less than 30 Days Past Due 30-89 Days Past Due 90 Days or More Past Due Total Past Due Total Carried at Amortized Cost 1 Loans Accounted for Under the Fair Value Option 2 Total Loans and Leases March 31, 2021 Commercial & Industrial Small Business Banking $ 762,178 $ — $ 12,545 $ 12,545 $ 774,723 $ 299,291 $ 1,074,014 Specialty Lending 431,358 — — — 431,358 73,751 505,109 Paycheck Protection Program 1,478,995 — — — 1,478,995 — 1,478,995 Total 2,672,531 — 12,545 12,545 2,685,076 373,042 3,058,118 Construction & Development Small Business Banking 204,996 1,629 — 1,629 206,625 — 206,625 Specialty Lending 77,792 — 3,723 3,723 81,515 — 81,515 Total 282,788 1,629 3,723 5,352 288,140 — 288,140 Commercial Real Estate Small Business Banking 1,176,005 — 11,854 11,854 1,187,859 313,466 1,501,325 Specialty Lending 173,531 — 6,606 6,606 180,137 19,776 199,913 Total 1,349,536 — 18,460 18,460 1,367,996 333,242 1,701,238 Commercial Land Small Business Banking 346,206 2,325 2,055 4,380 350,586 84,513 435,099 Total 346,206 2,325 2,055 4,380 350,586 84,513 435,099 Total $ 4,651,061 $ 3,954 $ 36,783 $ 40,737 $ 4,691,798 $ 790,797 $ 5,482,595 Net deferred (fees) costs $ (25,841 ) Loan and Leases, Net of unearned $ 5,456,754 Current or Less than 30 Days Past Due 30-89 Days Past Due 90 Days or More Past Due Total Past Due Total Carried at Amortized Cost 1 Loans Accounted for Under the Fair Value Option 2 Total Loans and Leases December 31, 2020 Commercial & Industrial Small Business Banking $ 695,090 $ 10,341 $ 10,765 $ 21,106 $ 716,196 $ 308,341 $ 1,024,537 Specialty Lending 341,952 337 — 337 342,289 71,090 413,379 Paycheck Protection Program 1,528,180 — — — 1,528,180 — 1,528,180 Total 2,565,222 10,678 10,765 21,443 2,586,665 379,431 2,966,096 Construction & Development Small Business Banking 183,087 — — — 183,087 — 183,087 Specialty Lending 88,890 — 3,723 3,723 92,613 — 92,613 Total 271,977 — 3,723 3,723 275,700 — 275,700 Commercial Real Estate Small Business Banking 987,358 3,730 8,609 12,339 999,697 321,352 1,321,049 Specialty Lending 148,264 5,374 1,693 7,067 155,331 20,317 175,648 Total 1,135,622 9,104 10,302 19,406 1,155,028 341,669 1,496,697 Commercial Land Small Business Banking 329,638 — 2,243 2,243 331,881 94,274 426,155 Total 329,638 — 2,243 2,243 331,881 94,274 426,155 Total $ 4,302,459 $ 19,782 $ 27,033 $ 46,815 $ 4,349,274 $ 815,374 $ 5,164,648 Net deferred (fees) costs $ (19,718 ) Loan and Leases, Net of unearned $ 5,144,930 (1) Total loans and leases include $2.75 billion of U.S. government guaranteed loans as of March 31, 2021, of which $19.2 million is 90 days or more past due, $1.2 million is past due 30-89 days and $2.73 billion are current. Total loans and leases include $2.61 billion of U.S. government guaranteed loans as of December 31, 2020, of which $12.9 million is 90 days or more past due, $16.7 million is past due 30-89 days and $2.58 billion are current. (2) The Company measures the carrying value of the retained portion of loans sold at fair value under ASC Subtopic 825-10. See Note 9. Fair Value of Financial Instruments for additional information.
Summary of Asset Quality Indicators by Portfolio Class and Origination Year	The following tables presents asset quality indicators by portfolio class and origination year. See Note 5. Loans and Leases Held for Investment and Credit Quality in the Company’s 2020 Form 10-K for additional discussion around the asset quality indicators that the Company uses to manage and monitor credit risk. Term Loans and Leases Amortized Cost Basis by Origination Year 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total 1,2 March 31, 2021 Small Business Banking Risk Grades 1 - 4 $ 174,311 $ 799,012 $ 491,138 $ 277,191 $ 242,859 $ 198,955 $ 36,619 $ 1,794 $ 2,221,879 Risk Grade 5 — 19,387 76,377 70,633 42,121 14,779 1,682 434 225,413 Risk Grades 6 - 8 — 92 13,899 14,572 23,664 19,073 1,002 199 72,501 Total 174,311 818,491 581,414 362,396 308,644 232,807 39,303 2,427 2,519,793 Specialty Lending Risk Grades 1 - 4 118,627 295,067 95,893 44,784 41,547 — 52,833 929 649,680 Risk Grade 5 250 7,674 6,832 967 11,368 — 2,160 — 29,251 Risk Grades 6 - 8 — — — 8,636 — 5,307 136 — 14,079 Total 118,877 302,741 102,725 54,387 52,915 5,307 55,129 929 693,010 Paycheck Protection Program Risk Grades 1 - 4 507,428 971,567 — — — — — — 1,478,995 Risk Grade 5 — — — — — — — — — Risk Grades 6 - 8 — — — — — — — — — Total 507,428 971,567 — — — — — — 1,478,995 Total $ 800,616 $ 2,092,799 $ 684,139 $ 416,783 $ 361,559 $ 238,114 $ 94,432 $ 3,356 $ 4,691,798 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total 1,2 December 31, 2020 Small Business Banking Risk Grades 1 - 4 $ 724,506 $ 475,593 $ 287,712 $ 230,653 $ 159,877 $ 59,065 $ 32,373 $ 1,392 $ 1,971,171 Risk Grade 5 16,080 59,595 62,857 44,478 11,203 3,666 2,131 212 200,222 Risk Grades 6 - 8 81 8,976 14,639 15,090 11,424 8,418 631 209 59,468 Total 740,667 544,164 365,208 290,221 182,504 71,149 35,135 1,813 2,230,861 Specialty Lending Risk Grades 1 - 4 296,537 96,553 48,930 40,626 — — 55,229 632 538,507 Risk Grade 5 7,672 6,379 2,752 18,718 — — 1,711 — 37,232 Risk Grades 6 - 8 — — 8,635 — 5,782 — 77 — 14,494 Total 304,209 102,932 60,317 59,344 5,782 — 57,017 632 590,233 Paycheck Protection Program Risk Grades 1 - 4 1,528,180 — — — — — — — 1,528,180 Risk Grade 5 — — — — — — — — — Risk Grades 6 - 8 — — — — — — — — — Total 1,528,180 — — — — — — — 1,528,180 Total $ 2,573,056 $ 647,096 $ 425,525 $ 349,565 $ 188,286 $ 71,149 $ 92,152 $ 2,445 $ 4,349,274 (1) Total loans and leases include $2.75 billion of U.S. government guaranteed loans as of March 31, 2021, segregated by risk grade as follows: Risk Grades 1 – 4 = $2.57 billion, Risk Grade 5 = $141.1 million, Risk Grades 6 – 8 = $47.6 million. As of December 31, 2020, total loans and leases include $2.61 billion of U.S. government guaranteed loans, segregated by risk grade as follows: Risk Grades 1 – 4 = $2.44 billion, Risk Grade 5 = $128.0 million, Risk Grades 6 – 8 = $40.9 million. Total loans and leases exclude loans accounted for under the fair value option. (2) Excludes $790.8 million and $815.4 million of loans accounted for under the fair value option as of March 31, 2021 and December 31, 2020, respectively.
Nonaccrual Loans and Leases Held for Investment	Nonaccrual loans and leases held for investment as of March 31, 2021 and December 31, 2020 are as follows: March 31, 2021 Loan and Lease Balance 1 Guaranteed Balance Unguaranteed Balance Unguaranteed Exposure with No ACL Commercial & Industrial Small Business Banking $ 23,249 $ 15,612 $ 7,637 $ 271 Total 23,249 15,612 7,637 271 Construction & Development Specialty Lending 3,723 — 3,723 3,723 Total 3,723 — 3,723 3,723 Commercial Real Estate Small Business Banking 21,738 10,409 11,329 6,054 Specialty Lending 6,606 5,071 1,535 1,228 Total 28,344 15,480 12,864 7,282 Commercial Land Small Business Banking 2,055 1,541 514 — Total 2,055 1,541 514 — Total $ 57,371 $ 32,633 $ 24,738 $ 11,276 December 31, 2020 Loan and Lease Balance 1 Guaranteed Balance Unguaranteed Balance Unguaranteed Exposure with No ACL Commercial & Industrial Small Business Banking $ 17,992 $ 12,046 $ 5,946 $ — Total 17,992 12,046 5,946 — Construction & Development Specialty Lending 3,723 — 3,723 3,723 Total 3,723 — 3,723 3,723 Commercial Real Estate Small Business Banking 15,085 6,725 8,360 5,327 Specialty Lending 7,068 5,533 1,535 — Total 22,153 12,258 9,895 5,327 Commercial Land Small Business Banking 2,242 1,728 514 — Total 2,242 1,728 514 — Total $ 46,110 $ 26,032 $ 20,078 $ 9,050 (1) Excludes nonaccrual loans accounted for under the fair value option. See Note 9. Fair Value of Financial Instruments for additional information.
Amortized Cost Basis of Collateral-Dependent Loans and Leases	The following table presents the amortized cost basis of collateral-dependent loans and leases, which are individually evaluated to determine expected credit losses, as of March 31, 2021 and December 31, 2020: Total Collateral Dependent Loans Unguaranteed Portion March 31, 2021 Real Estate Business Assets Other Real Estate Business Assets Other Allowance for Credit Losses Commercial & Industrial Small Business Banking $ 2,779 $ 4,010 $ 1,615 $ 2,031 $ 120 $ 338 $ 495 Total 2,779 4,010 1,615 2,031 120 338 495 Construction & Development Specialty Lending 3,767 — — 3,767 — — — Total 3,767 — — 3,767 — — — Commercial Real Estate Small Business Banking 18,800 251 330 10,407 9 338 296 Specialty Lending 6,617 — — 1,546 — — 23 Total 25,417 251 330 11,953 9 338 319 Commercial Land Small Business Banking 2,075 — — 534 — — 309 Total 2,075 — — 534 — — 309 Total $ 34,038 $ 4,261 $ 1,945 $ 18,285 $ 129 $ 676 $ 1,123 Total Collateral Dependent Loans Unguaranteed Portion December 31, 2020 Real Estate Business Assets Other Real Estate Business Assets Other Allowance for Credit Losses Commercial & Industrial Small Business Banking $ 1,279 $ 9,440 $ 197 $ 531 $ 4,077 $ 66 $ 1,281 Total 1,279 9,440 197 531 4,077 66 1,281 Construction & Development Specialty Lending 3,767 — — 3,767 — — — Total 3,767 — — 3,767 — — — Commercial Real Estate Small Business Banking 11,568 258 332 6,873 9 335 175 Specialty Lending 13,196 — — 7,663 — — 23 Total 24,764 258 332 14,536 9 335 198 Commercial Land Small Business Banking 2,263 — — 534 — — 302 Total 2,263 — — 534 — — 302 Total $ 32,073 $ 9,698 $ 529 $ 19,368 $ 4,086 $ 401 $ 1,781
Activity in ACL and Allowance for Loan and Lease Losses by Portfolio Segment	The following table details activity in the ACL by portfolio segment allowance for the periods presented: Three Months Ended Commercial & Industrial Construction & Development Commercial Real Estate Commercial Land Total March 31, 2021 Beginning Balance $ 26,941 $ 5,663 $ 18,148 $ 1,554 $ 52,306 Charge offs (152 ) — (517 ) (12 ) (681 ) Recoveries 9 — 1,656 — 1,665 Provision (221 ) 224 (641 ) (235 ) (873 ) Ending Balance $ 26,577 $ 5,887 $ 18,646 $ 1,307 $ 52,417 March 31, 2020 Beginning Balance, prior to adoption of ASC 326 $ 15,757 $ 2,732 $ 8,427 $ 1,318 $ 28,234 Impact of adopting ASC 326 (4,561 ) 1,131 1,916 193 (1,321 ) Charge offs (2,345 ) — (109 ) (408 ) (2,862 ) Recoveries 35 — 28 — 63 Provision 7,451 960 2,848 533 11,792 Ending Balance $ 16,337 $ 4,823 $ 13,110 $ 1,636 $ 35,906
Troubled Debt Restructurings on Financing Receivables	Three Months Ended March 31, 2021 Interest Only Payment Deferral Extend Amortization Other (1) Total TDRs (2) Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Commercial & Industrial Small Business Banking — $ — 1 $ 3,269 — $ — — $ — 1 $ 3,269 Total — — 1 3,269 — — — — 1 3,269 Commercial Real Estate Small Business Banking — — 1 629 — — 1 3,141 2 3,770 Total — — 1 629 — — 1 3,141 2 3,770 Total — $ — 2 $ 3,898 — $ — 1 $ 3,141 3 $ 7,039 (1) Includes one small business banking with extend amortization and a rate concession TDR. (2) Excludes loans accounted for under the fair value option. See Note 9. Fair Value of Financial Instruments for additional information. Three Months Ended March 31, 2020 Interest Only Payment Deferral Extend Amortization Other Total TDRs (1) Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Number of Loans Recorded investment at period end Commercial & Industrial Small Business Banking — $ — 2 $ 1,487 — $ — — $ — 2 $ 1,487 Specialty Lending — — — — 1 973 — — 1 973 Total — — 2 1,487 1 973 — — 3 2,460 Commercial Real Estate Small Business Banking — — 1 3,589 — — — — 1 3,589 Total — — 1 3,589 — — — — 1 3,589 Total — $ — 3 $ 5,076 1 $ 973 — $ — 4 $ 6,049 (1) Excludes loans accounted for under the fair value option. See Note 9. Fair Value of Financial Instruments for additional information.

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Net Lease Investment	The gross lease payments receivable and the net investment included in accounts receivable for such leases are as follows: March 31, 2021 December 31, 2020 Gross direct finance lease payments receivable $ 9,741 $ 10,629 Less – unearned interest (1,492 ) (1,685 ) Net investment in direct financing leases $ 8,249 $ 8,944
Future Minimum Finance Lease Payments	Future minimum lease payments under finance leases are as follows: As of March 31, 2021 Amount 2021 $ 2,149 2022 2,620 2023 2,182 2024 1,570 2025 1,104 Thereafter 116 Total $ 9,741
Maturity Analysis of Future Minimum Operating Lease Payments	A maturity analysis of future minimum lease payments under non-cancelable operating leases is as follows: As of March 31, 2021 Amount 2021 $ 7,083 2022 9,044 2023 9,075 2024 8,808 2025 8,935 Thereafter 31,175 Total $ 74,120

Servicing Assets (Tables)

Servicing Assets (Tables)	3 Months Ended
	Mar. 31, 2021
Transfers And Servicing [Abstract]
Summary of Activity Pertaining to Servicing Rights	The following summarizes the activity pertaining to servicing rights: Three Months Ended March 31, 2021 2020 Balance at beginning of period $ 33,918 $ 35,365 Additions, net 2,333 2,859 Fair value changes: Due to changes in valuation inputs or assumptions 2,946 (2,039 ) Decay due to increases in principal paydowns or runoff (1,453 ) (2,653 ) Balance at end of period $ 37,744 $ 33,532

Borrowings (Tables)

Borrowings (Tables)	3 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Total Outstanding Borrowings	Total outstanding borrowings consisted of the following: March 31, 2021 December 31, 2020 Borrowings In March 2021, the Company entered into a 60-month term loan agreement of $50.0 million with a third party correspondent bank. The loan accrues interest at a fixed rate of 2.95% with a monthly payment sufficient to fully amortize the loan, with all remaining unpaid principal and interest due at maturity on March 30, 2026. The Company paid the Lender a non-refundable $325 thousand loan origination fee upon signing of the Note that is presented as a direct deduction from the carrying amount of the loan and will be amortized into interest expense over the life of the loan. $ 49,675 $ — In September 2020, the Company renewed a $50.0 million revolving line of credit originally issued in 2017 with a third party correspondent bank. The line of credit was unsecured and accrued interest at 30-day LIBOR plus 1.15% for a term of 13 months. Payments were interest only with all principal and accrued interest due on October 10, 2021. On March 31, 2021 the remaining outstanding balance of $14.5 million was paid in full and the revolving line was closed. No available credit remains at March 31, 2021. — 14,488 In April 2020, the Company entered into the Federal Reserve Bank's Paycheck Protection Program Liquidity Facility ("PPPLF"). Under the PPPLF, advances must be secured by pledges of loans to small businesses originated by the Company under the U.S. Small Business Administration's 7(a) loan program titled the Paycheck Protection Program. The PPPLF accrues interest at thirty-five basis points and matures at various dates equal to the maturity date of the PPPLF collateral pledged to secure the advance, ranging from April 1, 2022 to March 20, 2026, and will be accelerated on and to the extent of any 7(a) loan forgiveness reimbursement by the SBA for any PPPLF collateral or the date of purchase by the SBA from the borrower of any PPPLF collateral. On the maturity date of each advance, the Company shall repay the advance plus accrued interest. This $1.41 billion borrowing was fully advanced at March 31, 2021. 1,410,785 1,527,596 Other long term debt (1) 5,501 9 Total borrowings $ 1,465,961 $ 1,542,093 (1) Includes finance leases and loan participations accounted for as secured borrowings.

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Record Amount of Assets and Liabilities Measured at Fair Value on a Recurring Basis	The tables below present the recorded amount of assets and liabilities measured at fair value on a recurring basis. March 31, 2021 Total Level 1 Level 2 Level 3 Investment securities available-for-sale US government agencies $ 15,829 $ — $ 15,829 $ — Mortgage-backed securities 755,775 — 755,775 — Municipal bonds 1 3,573 — 3,477 96 Loans held for sale 35,936 — — 35,936 Loans held for investment 790,797 — — 790,797 Servicing assets 2 37,744 — — 37,744 Mutual fund 2,331 — 2,331 — Equity warrant assets 3 1,314 — — 1,314 Total assets at fair value $ 1,643,299 $ — $ 777,412 $ 865,887 December 31, 2020 Total Level 1 Level 2 Level 3 Investment securities available-for-sale US government agencies $ 15,919 $ — $ 15,919 $ — Mortgage-backed securities 730,454 — 730,454 — Municipal bonds 1 3,725 — 3,629 96 Loans held for sale 36,111 — — 36,111 Loans held for investment 815,374 — — 815,374 Servicing assets 2 33,918 — — 33,918 Mutual fund 2,351 — 2,351 — Equity warrant assets 3 908 — — 908 Total assets at fair value $ 1,638,760 $ — $ 752,353 $ 886,407 (1) During the three months ended March 31, 2021, the Company recorded no fair value adjustment gain/loss. During the three months ended March 31, 2020, the Company recorded a fair value adjustment gain of $1 thousand. (2) See Note 7 for a rollforward of recurring Level 3 fair values for servicing assets. (3) During the three months ended March 31, 2021, the Company entered into equity warrant assets with a fair value of $21 thousand at the time of issuance and recorded net gains on derivative instruments of $385 thousand. During the three months ended March 31, 2020, the Company entered into equity warrant assets with a fair value of $164 thousand at the time of issuance and recorded net losses on derivative instruments of $32 thousand.
Summary of Fair Value Carrying Amount and Unpaid Principal Outstanding of Loans Under Fair Value Option	The following tables provide more information about the fair value carrying amount and the unpaid principal outstanding of loans accounted for under the fair value option at March 31, 2021 and December 31, 2020. March 31, 2021 Total Loans Nonaccruals 90 Days or More Past Due Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Option Elections Loans held for sale $ 35,936 $ 37,923 $ (1,987 ) $ — $ — $ — $ — $ — $ — Loans held for investment 790,797 814,729 (23,932 ) 40,234 43,973 (3,739 ) 26,249 29,089 (2,840 ) $ 826,733 $ 852,652 $ (25,919 ) $ 40,234 $ 43,973 $ (3,739 ) $ 26,249 $ 29,089 $ (2,840 ) December 31, 2020 Total Loans Nonaccruals 90 Days or More Past Due Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Carrying Amount Unpaid Principal Balance Difference Fair Value Option Elections Loans held for sale $ 36,111 $ 38,135 $ (2,024 ) $ — $ — $ — $ — $ — $ — Loans held for investment 815,374 845,082 (29,708 ) 35,499 39,318 (3,819 ) 25,532 28,741 (3,209 ) $ 851,485 $ 883,217 $ (31,732 ) $ 35,499 $ 39,318 $ (3,819 ) $ 25,532 $ 28,741 $ (3,209 )
Schedule of Net Gains (Losses) from Changes in Fair Value	The following table presents the net gains (losses) from changes in fair value. Three Months Ended March 31, Gains (Losses) on Loans Accounted for under the Fair Value Option 2021 2020 Loans held for sale $ 36 $ 120 Loans held for investment 4,182 (10,758 ) $ 4,218 $ (10,638 )
Summary of the Activity Pertaining to Loans Accounted for Under Fair Value Option	The following tables summarize the activity pertaining to loans accounted for under the fair value option. Three Months Ended March 31, Loans held for sale 2021 2020 Balance at beginning of period $ 36,111 $ 16,198 Issuances & repurchases — 3,045 Fair value changes 36 120 Sales — — Settlements (211 ) (212 ) Balance at end of period $ 35,936 $ 19,151 Three Months Ended March 31, Loans held for investment 2021 2020 Balance at beginning of period $ 815,374 $ 824,520 Issuances & repurchases 5,570 61,611 Fair value changes 4,184 (10,758 ) Settlements (34,331 ) (43,947 ) Balance at end of period $ 790,797 $ 831,426
Recorded Amount of Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis	The tables below present the recorded amount of assets and liabilities measured at fair value on a non-recurring basis. March 31, 2021 Total Level 1 Level 2 Level 3 Collateral dependent loans $ 6,935 $ — $ — $ 6,935 Foreclosed assets 4,185 — — 4,185 Total assets at fair value $ 11,120 $ — $ — $ 11,120 December 31, 2020 Total Level 1 Level 2 Level 3 Collateral dependent loans $ 4,159 $ — $ — $ 4,159 Foreclosed assets 4,155 — — 4,155 Long-lived asset held for sale 8,874 8,874 — — Equity security investment with a non-readily determinable fair value 25,367 — 25,367 — Total assets at fair value $ 42,555 $ 8,874 $ 25,367 $ 8,314
Analysis of Level 3 Valuation Techniques	For Level 3 assets and liabilities measured at fair value on a recurring or non-recurring basis as of March 31, 2021 and December 31, 2020 the significant unobservable inputs used in the fair value measurements were as follows: March 31, 2021 Level 3 Assets with Significant Unobservable Inputs Fair Value Valuation Technique Significant Unobservable Inputs Range Recurring fair value Municipal bond $ 96 Discounted expected cash flows Discount rate Prepayment speed 4.5% 5.0% Loans held for sale $ 35,936 Discounted expected cash flows Discount rate Prepayment speed 0.8% to 17.4% WAVG 19.0% Loans held for investment $ 790,797 Discounted expected cash flows Discounted appraisals Loss rate Discount rate Prepayment speed Appraisal adjustments 0.0% to 76.3% (WAVG 1.2%) 0.8% to 17.4% WAVG 19.0% 10.0% to 65.0% Equity warrant assets $ 1,314 Black-Scholes option pricing model Volatility Risk-free interest rate Marketability discount Remaining life 26.6% to 89.4% 0.92% to 1.74% 20.0% 4-10 years Non-recurring fair value Collateral dependent loans $ 6,935 Discounted appraisals Appraisal adjustments (1) 10.0% to 65.0% Foreclosed assets $ 4,185 Discounted appraisals Appraisal adjustments (1) 7.5% to 10.0% December 31, 2020 Level 3 Assets with Significant Unobservable Inputs Fair Value Valuation Technique Significant Unobservable Inputs Range Recurring fair value Municipal bond $ 96 Discounted expected cash flows Discount rate Prepayment speed 4.3% 5.0% Loans held for sale $ 36,111 Discounted expected cash flows Discount rate Prepayment speed 4.2% to 18.5% WAVG 19.0% Loans held for investment $ 815,374 Discounted expected cash flows Discounted appraisals Loss rate Discount rate Prepayment speed Appraisal adjustments 0.0% to 73.2% (WAVG 1.5%) 4.2% to 18.5% WAVG 19.0% 10.0% to 83.0% Equity warrant assets $ 908 Black-Scholes option pricing model Volatility Risk-free interest rate Marketability discount Remaining life 26.5-87.1% 0.36% to 0.93% 20.0% 5-10 years Non-recurring fair value Collateral dependent loans $ 4,159 Discounted appraisals Appraisal adjustments (1) 10.0% to 83.0% Foreclosed assets $ 4,155 Discounted appraisals Appraisal adjustments (1) 10.0% to 20.0% (1) Appraisals may be adjusted by management for customized discounting criteria, estimated sales costs, and other qualitative adjustments.
Carrying Amount and Estimated Fair Value of Financial Instruments	The carrying amounts and estimated fair values of the Company’s financial instruments not measured at fair value on a recurring or non-recurring basis are as follows: March 31, 2021 Carrying Amount Quoted Price In Active Markets for Identical Assets /Liabilities (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Financial assets Cash and due from banks $ 630,081 $ 630,081 $ — $ — $ 630,081 Federal funds sold 5,461 5,461 — — 5,461 Certificates of deposit with other banks 6,500 6,839 — — 6,839 Loans held for sale 1,040,805 — — 1,136,156 1,136,156 Loans and leases, net of allowance for credit losses on loans and leases 4,613,540 — — 4,722,518 4,722,518 Financial liabilities Deposits 6,316,004 — 6,227,312 — 6,227,312 Borrowings 1,465,961 — — 1,451,459 1,451,459 December 31, 2020 Carrying Amount Quoted Price In Active Markets for Identical Assets /Liabilities (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Financial assets Cash and due from banks $ 297,167 $ 297,167 $ — $ — $ 297,167 Federal funds sold 21,153 21,153 — — 21,153 Certificates of deposit with other banks 6,500 6,906 — — 6,906 Loans held for sale 1,139,359 — — 1,235,122 1,235,122 Loans and leases, net of allowance for credit losses on loans and leases 4,277,250 — — 4,366,489 4,366,489 Financial liabilities Deposits 5,712,828 — 5,711,781 — 5,711,781 Borrowings 1,542,093 — — 1,542,171 1,542,171

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Summary of Commitments	A summary of the Company’s commitments is as follows: March 31, 2021 December 31, 2020 Commitments to extend credit $ 2,526,132 $ 2,054,910 Standby letters of credit 5,929 22,913 Total unfunded off-balance-sheet credit risk $ 2,532,061 $ 2,077,823

Segments (Tables)

Segments (Tables)	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Schedule of Segment Information	The following tables provide financial information for the Company's segments. The information provided under the caption “Other” represents operations not considered to be reportable segments and/or general operating expenses of the Company, and includes the parent company, other non-bank subsidiaries and elimination adjustments to reconcile the results of the operating segments to the consolidated financial statements prepared in conformity with GAAP. Banking Fintech Other Consolidated Three months ended March 31, 2021 Interest income $ 88,099 $ 122 $ 4 $ 88,225 Interest expense 18,165 — 110 18,275 Net interest income 69,934 122 (106 ) 69,950 (Recovery of) provision for loan and lease credit losses (873 ) — — (873 ) Noninterest income 30,524 (4 ) 537 31,057 Noninterest expense 55,625 1,020 1,627 58,272 Income tax expense (benefit) 4,650 5 (474 ) 4,181 Net income (loss) $ 41,056 $ (907 ) $ (722 ) $ 39,427 Total assets $ 8,281,729 $ 91,662 $ 44,484 $ 8,417,875 Three months ended March 31, 2020 Interest income $ 63,448 $ — $ 25 $ 63,473 Interest expense 23,255 — 57 23,312 Net interest income 40,193 — (32 ) 40,161 Provision for loan and lease credit losses 11,792 — — 11,792 Noninterest income 5,964 (880 ) 658 5,742 Noninterest expense 46,687 1,490 1,314 49,491 Income tax benefit (4,170 ) (244 ) (3,364 ) (7,778 ) Net (loss) income $ (8,152 ) $ (2,126 ) $ 2,676 $ (7,602 ) Total assets $ 5,133,447 $ 84,366 $ 55,756 $ 5,273,569

Basis of Presentation - Narrati

Basis of Presentation - Narrative (Details) - JAM $ in Millions	Apr. 01, 2020USD ($)
Basis Of Presentation [Line Items]
Equity interests	100.00%
Goodwill	$ 1.8
Intangible assets	2.3
Contingent consideration	$ 2.1
Useful life	15 years

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements - Narrative (Details)	Mar. 31, 2021
ASU No. 2019-12
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change In Accounting Principle Accounting Standards Update Adoption Date	Jan. 1, 2021
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true
ASU No. 2020-01
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change In Accounting Principle Accounting Standards Update Adoption Date	Jan. 1, 2021
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true
ASU No. 2020-04
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change In Accounting Principle Accounting Standards Update Adoption Date	Mar. 12, 2020
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Basic earnings (loss) per share:
Net income (loss)	$ 39,427	$ (7,602)
Weighted-average basic shares outstanding	42,673,615	40,334,179
Basic earnings (loss) per share	$ 0.92	$ (0.19)
Diluted earnings (loss) per share:
Net income (loss), for diluted earnings (loss) per share	$ 39,427	$ (7,602)
Weighted-average basic shares outstanding	42,673,615	40,334,179
Add effect of dilutive stock options and restricted stock grants	2,023,235	739,870
Total weighted-average diluted shares outstanding	44,696,850	41,074,049
Diluted earnings (loss) per share	$ 0.88	$ (0.19)
Anti-dilutive shares		1,839,601

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Details) - Market Restricted Stock - shares	Apr. 06, 2021	Mar. 31, 2021
Earnings Per Share Basic And Diluted [Line Items]
Number of shares, vested		397,500
Subsequent Event
Earnings Per Share Basic And Diluted [Line Items]
Number of shares, vested	178,000
Shares issued net of shares for tax withholdings	99,000

Securities - Carrying Amount an

Securities - Carrying Amount and Fair Value of Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 763,166	$ 721,799
Unrealized Gains	20,910	29,243
Unrealized Losses	8,899	944
Fair Value	775,177	750,098
US government agencies
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	15,442	15,440
Unrealized Gains	387	479
Fair Value	15,829	15,919
Mortgage-backed securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	744,462	703,092
Unrealized Gains	20,208	28,302
Unrealized Losses	8,895	940
Fair Value	755,775	730,454
Municipal bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	3,262	3,267
Unrealized Gains	315	462
Unrealized Losses	4	4
Fair Value	$ 3,573	$ 3,725

Securities - Narrative (Details

Securities - Narrative (Details)	3 Months Ended
	Mar. 31, 2021USD ($)Security	Mar. 31, 2020USD ($)Security	Dec. 31, 2020USD ($)Security
Schedule Of Available For Sale Securities [Line Items]
(Loss) gain on sale of investment securities available-for-sale		$ (79,000)
Accrued interest receivable on available-for-sale securities	$ 1,900,000		$ 1,800,000
Other than temporary impairment losses	0
Collateral Pledged
Schedule Of Available For Sale Securities [Line Items]
Debt securities, available-for-sale, restricted	$ 0		$ 0
Mortgage-backed securities
Schedule Of Available For Sale Securities [Line Items]
Number of investment securities sold | Security	2	2
Proceeds from sale of investment securities	$ 6,500,000	$ 4,500,000
(Loss) gain on sale of investment securities available-for-sale		$ (79,000)
Number of securities in unrealized loss portions for longer than 12 months | Security	2		3
Number of securities in unrealized loss positions for less than 12 months | Security	87		29
Municipal bonds
Schedule Of Available For Sale Securities [Line Items]
Number of securities in unrealized loss portions for longer than 12 months | Security	1		1

Securities - Debt Securities Av

Securities - Debt Securities Available-for-Sale in Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items]
Securities in unrealized loss position, Less Than 12 Months, Fair Value	$ 357,905	$ 156,904
Securities in unrealized loss position, Less Than 12 Months, Unrealized Losses	8,892	917
Securities in unrealized loss position, 12 Months or More, Fair Value	746	1,949
Securities in unrealized loss position, 12 Months or More, Unrealized Losses	7	27
Securities in unrealized loss position, Total, Fair Value	358,651	158,853
Securities in unrealized loss position, Total, Unrealized Losses	8,899	944
Mortgage-backed securities
Schedule Of Available For Sale Securities [Line Items]
Securities in unrealized loss position, Less Than 12 Months, Fair Value	357,905	156,904
Securities in unrealized loss position, Less Than 12 Months, Unrealized Losses	8,892	917
Securities in unrealized loss position, 12 Months or More, Fair Value	650	1,853
Securities in unrealized loss position, 12 Months or More, Unrealized Losses	3	23
Securities in unrealized loss position, Total, Fair Value	358,555	158,757
Securities in unrealized loss position, Total, Unrealized Losses	8,895	940
Municipal bonds
Schedule Of Available For Sale Securities [Line Items]
Securities in unrealized loss position, 12 Months or More, Fair Value	96	96
Securities in unrealized loss position, 12 Months or More, Unrealized Losses	4	4
Securities in unrealized loss position, Total, Fair Value	96	96
Securities in unrealized loss position, Total, Unrealized Losses	$ 4	$ 4

Securities - Summary of Investm

Securities - Summary of Investment Securities by Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Maturity, Amortized Cost, Rolling Maturity [Abstract]
Amortized Cost	$ 763,166	$ 721,799
Debt Securities, Available-for-sale, Maturity, Fair Value, Rolling Maturity [Abstract]
Total, Fair value	775,177	750,098
US government agencies
Debt Securities, Available-for-sale, Maturity, Amortized Cost, Rolling Maturity [Abstract]
Within one year, Amortized cost	5,000
One to five years, Amortized cost	7,513
Five to ten years, Amortized cost	2,929
Amortized Cost	15,442	15,440
Debt Securities, Available-for-sale, Maturity, Fair Value, Rolling Maturity [Abstract]
Within one year, Fair value	5,007
One to five years, Fair value	7,737
Five to ten years, Fair value	3,085
Total, Fair value	15,829	15,919
Mortgage-backed securities
Debt Securities, Available-for-sale, Maturity, Amortized Cost, Rolling Maturity [Abstract]
One to five years, Amortized cost	10,248
Five to ten years, Amortized cost	227,756
After 10 years, Amortized cost	506,458
Amortized Cost	744,462	703,092
Debt Securities, Available-for-sale, Maturity, Fair Value, Rolling Maturity [Abstract]
One to five years, Fair value	10,848
Five to ten years, Fair value	237,693
After 10 years, Fair value	507,234
Total, Fair value	755,775	730,454
Municipal bonds
Debt Securities, Available-for-sale, Maturity, Amortized Cost, Rolling Maturity [Abstract]
After 10 years, Amortized cost	3,262
Amortized Cost	3,262	3,267
Debt Securities, Available-for-sale, Maturity, Fair Value, Rolling Maturity [Abstract]
After 10 years, Fair value	3,573
Total, Fair value	$ 3,573	$ 3,725

Securities - Carrying and Owner

Securities - Carrying and Ownership Percentage of Each Equity Method Investment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Equity Method Investments [Line Items]
Equity method investments	$ 80,747	$ 77,928
Apiture, Inc.
Schedule Of Equity Method Investments [Line Items]
Equity method investments	$ 53,927	$ 53,344
Equity method investment ownership percentage	39.10%	39.10%
Canapi Ventures SBIC Fund, LP
Schedule Of Equity Method Investments [Line Items]
Equity method investments	$ 15,530	$ 14,843
Equity method investment ownership percentage	2.90%	3.10%
Canapi Ventures Fund, LP
Schedule Of Equity Method Investments [Line Items]
Equity method investments	$ 1,780	$ 1,686
Equity method investment ownership percentage	1.50%	1.50%
Other Fintech Investments in Private Companies
Schedule Of Equity Method Investments [Line Items]
Equity method investments	$ 6,237	$ 1,634
Equity method investment ownership percentage	Various	Various
Other
Schedule Of Equity Method Investments [Line Items]
Equity method investments	$ 3,273	$ 6,421
Equity method investment ownership percentage	Various	Various

Securities - Carrying and Own_2

Securities - Carrying and Ownership Percentage of Each Equity Method Investment (Parenthetical) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Canapi Ventures SBIC Fund, LP
Schedule Of Equity Method Investments [Line Items]
Equity method investments, committed amount of investment	$ 9.4	$ 11.3
Canapi Ventures Fund, LP
Schedule Of Equity Method Investments [Line Items]
Equity method investments, committed amount of investment	$ 1	1
Other
Schedule Of Equity Method Investments [Line Items]
Equity method investments, committed amount of investment		$ 2.9

Securities - Carrying Amount of

Securities - Carrying Amount of Company Investments in Non Marketable Equity Securities with No Readily Determinable Fair Value and Amounts Recognized in Earnings (Details) $ in Thousands	Mar. 31, 2021USD ($)
Investments Debt And Equity Securities [Abstract]
Carrying value (1)	$ 32,527
Cumulative Adjustments Carrying value adjustments :
Cumulative Adjustments Upward changes for observable prices	18,272
Cumulative Adjustments Downward changes for observable prices	(86)
Cumulative Adjustments Net upward change	$ 18,186

Securities - Carrying Amount _2

Securities - Carrying Amount of Company Investments in Non Marketable Equity Securities with No Readily Determinable Fair Value and Amounts Recognized in Earnings (Parenthetical) (Details) $ in Millions	Mar. 31, 2021USD ($)
Investments Debt And Equity Securities [Abstract]
Equity security investments, committed amount	$ 2

Loans and Leases Held for Inv_3

Loans and Leases Held for Investment and Credit Quality - Summary of Total Loans and Leases and Aging Analysis of Portfolio Segments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 40,737	$ 46,815
Total Carried at Amortized Cost	4,691,798	4,349,274
Loans Accounted for Under the Fair Value Option	790,797	815,374
Total Loans and Leases	5,482,595	5,164,648
Net deferred (fees) costs	(25,841)	(19,718)
Loan and Leases, Net of unearned	5,456,754	5,144,930
Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,651,061	4,302,459
30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,954	19,782
90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	36,783	27,033
Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Carried at Amortized Cost	2,519,793	2,230,861
Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Carried at Amortized Cost	693,010	590,233
Paycheck Protection Program
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Carried at Amortized Cost	1,478,995	1,528,180
Commercial & Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,545	21,443
Total Carried at Amortized Cost	2,685,076	2,586,665
Loans Accounted for Under the Fair Value Option	373,042	379,431
Total Loans and Leases	3,058,118	2,966,096
Commercial & Industrial | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,672,531	2,565,222
Commercial & Industrial | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		10,678
Commercial & Industrial | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,545	10,765
Commercial & Industrial | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,545	21,106
Total Carried at Amortized Cost	774,723	716,196
Loans Accounted for Under the Fair Value Option	299,291	308,341
Total Loans and Leases	1,074,014	1,024,537
Commercial & Industrial | Small Business Banking | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	762,178	695,090
Commercial & Industrial | Small Business Banking | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		10,341
Commercial & Industrial | Small Business Banking | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,545	10,765
Commercial & Industrial | Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		337
Total Carried at Amortized Cost	431,358	342,289
Loans Accounted for Under the Fair Value Option	73,751	71,090
Total Loans and Leases	505,109	413,379
Commercial & Industrial | Specialty Lending | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	431,358	341,952
Commercial & Industrial | Specialty Lending | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		337
Commercial & Industrial | Paycheck Protection Program
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Carried at Amortized Cost	1,478,995	1,528,180
Total Loans and Leases	1,478,995	1,528,180
Commercial & Industrial | Paycheck Protection Program | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,478,995	1,528,180
Construction & Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,352	3,723
Total Carried at Amortized Cost	288,140	275,700
Total Loans and Leases	288,140	275,700
Construction & Development | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	282,788	271,977
Construction & Development | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,629
Construction & Development | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,723	3,723
Construction & Development | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,629
Total Carried at Amortized Cost	206,625	183,087
Total Loans and Leases	206,625	183,087
Construction & Development | Small Business Banking | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	204,996	183,087
Construction & Development | Small Business Banking | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,629
Construction & Development | Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,723	3,723
Total Carried at Amortized Cost	81,515	92,613
Total Loans and Leases	81,515	92,613
Construction & Development | Specialty Lending | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	77,792	88,890
Construction & Development | Specialty Lending | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,723	3,723
Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	18,460	19,406
Total Carried at Amortized Cost	1,367,996	1,155,028
Loans Accounted for Under the Fair Value Option	333,242	341,669
Total Loans and Leases	1,701,238	1,496,697
Commercial Real Estate | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,349,536	1,135,622
Commercial Real Estate | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		9,104
Commercial Real Estate | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	18,460	10,302
Commercial Real Estate | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	11,854	12,339
Total Carried at Amortized Cost	1,187,859	999,697
Loans Accounted for Under the Fair Value Option	313,466	321,352
Total Loans and Leases	1,501,325	1,321,049
Commercial Real Estate | Small Business Banking | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,176,005	987,358
Commercial Real Estate | Small Business Banking | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		3,730
Commercial Real Estate | Small Business Banking | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	11,854	8,609
Commercial Real Estate | Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,606	7,067
Total Carried at Amortized Cost	180,137	155,331
Loans Accounted for Under the Fair Value Option	19,776	20,317
Total Loans and Leases	199,913	175,648
Commercial Real Estate | Specialty Lending | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	173,531	148,264
Commercial Real Estate | Specialty Lending | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		5,374
Commercial Real Estate | Specialty Lending | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,606	1,693
Commercial Land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,380	2,243
Total Carried at Amortized Cost	350,586	331,881
Loans Accounted for Under the Fair Value Option	84,513	94,274
Total Loans and Leases	435,099	426,155
Commercial Land | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	346,206	329,638
Commercial Land | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,325
Commercial Land | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,055	2,243
Commercial Land | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,380	2,243
Total Carried at Amortized Cost	350,586	331,881
Loans Accounted for Under the Fair Value Option	84,513	94,274
Total Loans and Leases	435,099	426,155
Commercial Land | Small Business Banking | Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	346,206	329,638
Commercial Land | Small Business Banking | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,325
Commercial Land | Small Business Banking | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 2,055	$ 2,243

Loans and Leases Held for Inv_4

Loans and Leases Held for Investment and Credit Quality - Summary of Total Loans and Leases and Aging Analysis of Portfolio Segments (Parenthetical) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	$ 4,691,798	$ 4,349,274
Total past due loans	40,737	46,815
90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due loans	36,783	27,033
30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due loans	3,954	19,782
Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	2,750,000	2,610,000
Current	2,730,000	2,580,000
Loans Insured or Guaranteed by US Government Authorities | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due loans	19,200	12,900
Loans Insured or Guaranteed by US Government Authorities | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due loans	$ 1,200	$ 16,700

Loans and Leases Held for Inv_5

Loans and Leases Held for Investment and Credit Quality - Summary of Asset Quality Indicators by Portfolio Class and Origination Year (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year	$ 800,616	$ 2,573,056
Fiscal year before current fiscal year	2,092,799	647,096
Two years before current fiscal year	684,139	425,525
Three years before current fiscal year	416,783	349,565
Four years before current fiscal year	361,559	188,286
Prior	238,114	71,149
Revolving Loans Amortized Cost Basis	94,432	92,152
Revolving Loans Converted to Term	3,356	2,445
Total loans and leases	4,691,798	4,349,274
Small Business Banking
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year	174,311	740,667
Fiscal year before current fiscal year	818,491	544,164
Two years before current fiscal year	581,414	365,208
Three years before current fiscal year	362,396	290,221
Four years before current fiscal year	308,644	182,504
Prior	232,807	71,149
Revolving Loans Amortized Cost Basis	39,303	35,135
Revolving Loans Converted to Term	2,427	1,813
Total loans and leases	2,519,793	2,230,861
Small Business Banking | Risk Grades 1 - 4
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year	174,311	724,506
Fiscal year before current fiscal year	799,012	475,593
Two years before current fiscal year	491,138	287,712
Three years before current fiscal year	277,191	230,653
Four years before current fiscal year	242,859	159,877
Prior	198,955	59,065
Revolving Loans Amortized Cost Basis	36,619	32,373
Revolving Loans Converted to Term	1,794	1,392
Total loans and leases	2,221,879	1,971,171
Small Business Banking | Risk Grade 5
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year		16,080
Fiscal year before current fiscal year	19,387	59,595
Two years before current fiscal year	76,377	62,857
Three years before current fiscal year	70,633	44,478
Four years before current fiscal year	42,121	11,203
Prior	14,779	3,666
Revolving Loans Amortized Cost Basis	1,682	2,131
Revolving Loans Converted to Term	434	212
Total loans and leases	225,413	200,222
Small Business Banking | Risk Grades 6 - 8
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year		81
Fiscal year before current fiscal year	92	8,976
Two years before current fiscal year	13,899	14,639
Three years before current fiscal year	14,572	15,090
Four years before current fiscal year	23,664	11,424
Prior	19,073	8,418
Revolving Loans Amortized Cost Basis	1,002	631
Revolving Loans Converted to Term	199	209
Total loans and leases	72,501	59,468
Specialty Lending
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year	118,877	304,209
Fiscal year before current fiscal year	302,741	102,932
Two years before current fiscal year	102,725	60,317
Three years before current fiscal year	54,387	59,344
Four years before current fiscal year	52,915	5,782
Prior	5,307
Revolving Loans Amortized Cost Basis	55,129	57,017
Revolving Loans Converted to Term	929	632
Total loans and leases	693,010	590,233
Specialty Lending | Risk Grades 1 - 4
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year	118,627	296,537
Fiscal year before current fiscal year	295,067	96,553
Two years before current fiscal year	95,893	48,930
Three years before current fiscal year	44,784	40,626
Four years before current fiscal year	41,547
Revolving Loans Amortized Cost Basis	52,833	55,229
Revolving Loans Converted to Term	929	632
Total loans and leases	649,680	538,507
Specialty Lending | Risk Grade 5
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year	250	7,672
Fiscal year before current fiscal year	7,674	6,379
Two years before current fiscal year	6,832	2,752
Three years before current fiscal year	967	18,718
Four years before current fiscal year	11,368
Revolving Loans Amortized Cost Basis	2,160	1,711
Total loans and leases	29,251	37,232
Specialty Lending | Risk Grades 6 - 8
Financing Receivable, Recorded Investment [Line Items]
Two years before current fiscal year		8,635
Three years before current fiscal year	8,636
Four years before current fiscal year		5,782
Prior	5,307
Revolving Loans Amortized Cost Basis	136	77
Total loans and leases	14,079	14,494
Paycheck Protection Program
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year	507,428	1,528,180
Fiscal year before current fiscal year	971,567
Total loans and leases	1,478,995	1,528,180
Paycheck Protection Program | Risk Grades 1 - 4
Financing Receivable, Recorded Investment [Line Items]
Current fiscal year	507,428	1,528,180
Fiscal year before current fiscal year	971,567
Total loans and leases	$ 1,478,995	$ 1,528,180

Loans and Leases Held for Inv_6

Loans and Leases Held for Investment and Credit Quality - Summary of Asset Quality Indicators by Portfolio Class and Origination Year (Parenthetical) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	$ 4,691,798	$ 4,349,274
Loans receivable, fair value	790,797	815,374
Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	2,750,000	2,610,000
Loans Insured or Guaranteed by US Government Authorities | Risk Grades 1 - 4
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	2,570,000	2,440,000
Loans Insured or Guaranteed by US Government Authorities | Risk Grade 5
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	141,100	128,000
Loans Insured or Guaranteed by US Government Authorities | Risk Grades 6 - 8
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	$ 47,600	$ 40,900

Loans and Leases Held for Inv_7

Loans and Leases Held for Investment and Credit Quality - Additional Information (Details)	3 Months Ended
	Mar. 31, 2021USD ($)SecurityLoan	Mar. 31, 2020USD ($)SecurityLoan	Dec. 31, 2020USD ($)
Accounts Notes And Loans Receivable [Line Items]
Loans greater than 90 days or more past due still accruing	$ 0		$ 0
Interest income recognized on nonaccrual loans and leases	0	$ 0
Accrued interest receivable on loans	$ 38,100,000		$ 41,000,000
Number of TDRs with subsequent default | SecurityLoan	1	0
Commercial Real Estate | Small Business Banking | Payment Deferral
Accounts Notes And Loans Receivable [Line Items]
Recorded investment with subsequent default	$ 629,000

Loans and Leases Held for Inv_8

Loans and Leases Held for Investment and Credit Quality - Nonaccrual Loans and Leases Held for Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	$ 57,371	$ 46,110
Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	32,633	26,032
Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	24,738	20,078
Unguaranteed Exposure with No ACL
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unguaranteed exposure with no allowance	11,276	9,050
Commercial & Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	23,249	17,992
Commercial & Industrial | Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	15,612	12,046
Commercial & Industrial | Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	7,637	5,946
Commercial & Industrial | Unguaranteed Exposure with No ACL
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unguaranteed exposure with no allowance	271
Commercial & Industrial | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	23,249	17,992
Commercial & Industrial | Small Business Banking | Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	15,612	12,046
Commercial & Industrial | Small Business Banking | Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	7,637	5,946
Commercial & Industrial | Small Business Banking | Unguaranteed Exposure with No ACL
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unguaranteed exposure with no allowance	271
Construction & Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	3,723	3,723
Construction & Development | Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	3,723	3,723
Construction & Development | Unguaranteed Exposure with No ACL
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unguaranteed exposure with no allowance	3,723	3,723
Construction & Development | Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	3,723	3,723
Construction & Development | Specialty Lending | Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	3,723	3,723
Construction & Development | Specialty Lending | Unguaranteed Exposure with No ACL
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unguaranteed exposure with no allowance	3,723	3,723
Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	28,344	22,153
Commercial Real Estate | Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	15,480	12,258
Commercial Real Estate | Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	12,864	9,895
Commercial Real Estate | Unguaranteed Exposure with No ACL
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unguaranteed exposure with no allowance	7,282	5,327
Commercial Real Estate | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	21,738	15,085
Commercial Real Estate | Small Business Banking | Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	10,409	6,725
Commercial Real Estate | Small Business Banking | Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	11,329	8,360
Commercial Real Estate | Small Business Banking | Unguaranteed Exposure with No ACL
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unguaranteed exposure with no allowance	6,054	5,327
Commercial Real Estate | Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	6,606	7,068
Commercial Real Estate | Specialty Lending | Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	5,071	5,533
Commercial Real Estate | Specialty Lending | Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	1,535	1,535
Commercial Real Estate | Specialty Lending | Unguaranteed Exposure with No ACL
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unguaranteed exposure with no allowance	1,228
Commercial Land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	2,055	2,242
Commercial Land | Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	1,541	1,728
Commercial Land | Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	514	514
Commercial Land | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	2,055	2,242
Commercial Land | Small Business Banking | Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	1,541	1,728
Commercial Land | Small Business Banking | Unguaranteed Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loan and lease balance	$ 514	$ 514

Loans and Leases Held for Inv_9

Loans and Leases Held for Investment and Credit Quality - Amortized Cost Basis of Collateral-Dependent Loans and Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	$ 4,691,798	$ 4,349,274
Allowance for Credit Losses	52,417	52,306	$ 35,906	$ 28,234
Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	34,038	32,073
Collateral Dependent Loans, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	4,261	9,698
Collateral Dependent Loans, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	1,945	529
Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	18,285	19,368
Unguaranteed Portion, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	129	4,086
Unguaranteed Portion, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	676	401
Unguaranteed Portion
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for Credit Losses	1,123	1,781
Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	2,519,793	2,230,861
Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	693,010	590,233
Commercial & Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	2,685,076	2,586,665
Allowance for Credit Losses	26,577	26,941	16,337	15,757
Commercial & Industrial | Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	2,779	1,279
Commercial & Industrial | Collateral Dependent Loans, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	4,010	9,440
Commercial & Industrial | Collateral Dependent Loans, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	1,615	197
Commercial & Industrial | Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	2,031	531
Commercial & Industrial | Unguaranteed Portion, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	120	4,077
Commercial & Industrial | Unguaranteed Portion, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	338	66
Commercial & Industrial | Unguaranteed Portion
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for Credit Losses	495	1,281
Commercial & Industrial | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	774,723	716,196
Commercial & Industrial | Small Business Banking | Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	2,779	1,279
Commercial & Industrial | Small Business Banking | Collateral Dependent Loans, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	4,010	9,440
Commercial & Industrial | Small Business Banking | Collateral Dependent Loans, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	1,615	197
Commercial & Industrial | Small Business Banking | Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	2,031	531
Commercial & Industrial | Small Business Banking | Unguaranteed Portion, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	120	4,077
Commercial & Industrial | Small Business Banking | Unguaranteed Portion, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	338	66
Commercial & Industrial | Small Business Banking | Unguaranteed Portion
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for Credit Losses	495	1,281
Commercial & Industrial | Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	431,358	342,289
Construction & Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	288,140	275,700
Allowance for Credit Losses	5,887	5,663	4,823	2,732
Construction & Development | Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	3,767	3,767
Construction & Development | Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	3,767	3,767
Construction & Development | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	206,625	183,087
Construction & Development | Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	81,515	92,613
Construction & Development | Specialty Lending | Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	3,767	3,767
Construction & Development | Specialty Lending | Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	3,767	3,767
Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	1,367,996	1,155,028
Allowance for Credit Losses	18,646	18,148	13,110	8,427
Commercial Real Estate | Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	25,417	24,764
Commercial Real Estate | Collateral Dependent Loans, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	251	258
Commercial Real Estate | Collateral Dependent Loans, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	330	332
Commercial Real Estate | Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	11,953	14,536
Commercial Real Estate | Unguaranteed Portion, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	9	9
Commercial Real Estate | Unguaranteed Portion, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	338	335
Commercial Real Estate | Unguaranteed Portion
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for Credit Losses	319	198
Commercial Real Estate | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	1,187,859	999,697
Commercial Real Estate | Small Business Banking | Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	18,800	11,568
Commercial Real Estate | Small Business Banking | Collateral Dependent Loans, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	251	258
Commercial Real Estate | Small Business Banking | Collateral Dependent Loans, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	330	332
Commercial Real Estate | Small Business Banking | Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	10,407	6,873
Commercial Real Estate | Small Business Banking | Unguaranteed Portion, Business Assets
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	9	9
Commercial Real Estate | Small Business Banking | Unguaranteed Portion, Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	338	335
Commercial Real Estate | Small Business Banking | Unguaranteed Portion
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for Credit Losses	296	175
Commercial Real Estate | Specialty Lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	180,137	155,331
Commercial Real Estate | Specialty Lending | Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	6,617	13,196
Commercial Real Estate | Specialty Lending | Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	1,546	7,663
Commercial Real Estate | Specialty Lending | Unguaranteed Portion
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for Credit Losses	23	23
Commercial Land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	350,586	331,881
Allowance for Credit Losses	1,307	1,554	$ 1,636	$ 1,318
Commercial Land | Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	2,075	2,263
Commercial Land | Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	534	534
Commercial Land | Unguaranteed Portion
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for Credit Losses	309	302
Commercial Land | Small Business Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	350,586	331,881
Commercial Land | Small Business Banking | Collateral Dependent Loans, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	2,075	2,263
Commercial Land | Small Business Banking | Unguaranteed Portion, Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans and leases receivable	534	534
Commercial Land | Small Business Banking | Unguaranteed Portion
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for Credit Losses	$ 309	$ 302

Loans and Leases Held for In_10

Loans and Leases Held for Investment and Credit Quality - Activity in the ACL by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Allowance for Loan Losses:
Beginning Balance	$ 52,306	$ 28,234
Impact of adopting ASC 326		(1,321)
Charge offs	(681)	(2,862)
Recoveries	1,665	63
Provision	(873)	11,792
Ending Balance	52,417	35,906
Commercial & Industrial
Allowance for Loan Losses:
Beginning Balance	26,941	15,757
Impact of adopting ASC 326		(4,561)
Charge offs	(152)	(2,345)
Recoveries	9	35
Provision	(221)	7,451
Ending Balance	26,577	16,337
Construction & Development
Allowance for Loan Losses:
Beginning Balance	5,663	2,732
Impact of adopting ASC 326		1,131
Provision	224	960
Ending Balance	5,887	4,823
Commercial Real Estate
Allowance for Loan Losses:
Beginning Balance	18,148	8,427
Impact of adopting ASC 326		1,916
Charge offs	(517)	(109)
Recoveries	1,656	28
Provision	(641)	2,848
Ending Balance	18,646	13,110
Commercial Land
Allowance for Loan Losses:
Beginning Balance	1,554	1,318
Impact of adopting ASC 326		193
Charge offs	(12)	(408)
Provision	(235)	533
Ending Balance	$ 1,307	$ 1,636

Loans and Leases Held for In_11

Loans and Leases Held for Investment and Credit Quality - Schedule of Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)SecurityLoan	Mar. 31, 2020USD ($)SecurityLoan
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	3	4
Recorded investment at period end | $	$ 7,039	$ 6,049
Extend Amortization
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan		1
Recorded investment at period end | $		$ 973
Payment Deferral
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	2	3
Recorded investment at period end | $	$ 3,898	$ 5,076
Other
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1
Recorded investment at period end | $	$ 3,141
Commercial & Industrial
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1	3
Recorded investment at period end | $	$ 3,269	$ 2,460
Commercial & Industrial | Extend Amortization
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan		1
Recorded investment at period end | $		$ 973
Commercial & Industrial | Payment Deferral
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1	2
Recorded investment at period end | $	$ 3,269	$ 1,487
Commercial & Industrial | Small Business Banking
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1	2
Recorded investment at period end | $	$ 3,269	$ 1,487
Commercial & Industrial | Small Business Banking | Payment Deferral
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1	2
Recorded investment at period end | $	$ 3,269	$ 1,487
Commercial & Industrial | Specialty Lending
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan		1
Recorded investment at period end | $		$ 973
Commercial & Industrial | Specialty Lending | Extend Amortization
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan		1
Recorded investment at period end | $		$ 973
Commercial Real Estate
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	2	1
Recorded investment at period end | $	$ 3,770	$ 3,589
Commercial Real Estate | Payment Deferral
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1	1
Recorded investment at period end | $	$ 629	$ 3,589
Commercial Real Estate | Other
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1
Recorded investment at period end | $	$ 3,141
Commercial Real Estate | Small Business Banking
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	2	1
Recorded investment at period end | $	$ 3,770	$ 3,589
Commercial Real Estate | Small Business Banking | Payment Deferral
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1	1
Recorded investment at period end | $	$ 629	$ 3,589
Commercial Real Estate | Small Business Banking | Other
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1
Recorded investment at period end | $	$ 3,141

Leases - Additional Information

Leases - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)term	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)
Lessor Lease Description [Line Items]
Direct financing lease, interest income	$ 186	$ 233
Number of additional terms | term	2
Premises and equipment, net	$ 253,774		$ 259,267
Lease income	2,400	2,400
Premises and Equipment Subject to Operating Leases
Lessor Lease Description [Line Items]
Premises and equipment, net	131,200		134,500
Premises and equipment, gross	163,400		164,300
Premises and equipment, accumulated depreciation	32,200		$ 29,800
Premises and equipment, depreciation expense	$ 2,400	$ 2,400
Minimum
Lessor Lease Description [Line Items]
Lessor, term of contract	3 years
Term of contract	10 years
Useful life	20 years
Residual value (as a percent)	20.00%
Maximum
Lessor Lease Description [Line Items]
Lessor, term of contract	7 years
Term of contract	15 years
Useful life	25 years
Residual value (as a percent)	50.00%

Leases - Direct Financing Lease

Leases - Direct Financing Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Gross direct finance lease payments receivable	$ 9,741	$ 10,629
Less – unearned interest	(1,492)	(1,685)
Net investment in direct financing leases	$ 8,249	$ 8,944

Leases - Finance Lease Maturity

Leases - Finance Lease Maturity (Details) $ in Thousands	Mar. 31, 2021USD ($)
Leases [Abstract]
2021	$ 2,149
2022	2,620
2023	2,182
2024	1,570
2025	1,104
Thereafter	116
Total	$ 9,741

Leases - Maturity Analysis of F

Leases - Maturity Analysis of Future Minimum Operating Lease Payments (Details) $ in Thousands	Mar. 31, 2021USD ($)
Leases [Abstract]
2021	$ 7,083
2022	9,044
2023	9,075
2024	8,808
2025	8,935
Thereafter	31,175
Total	$ 74,120

Servicing Assets - Narrative (D

Servicing Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance of loans serviced for others requiring recognition of a servicing asset	$ 2,240		$ 2,210
Unpaid principal balances of loan serviced for others	$ 3,220		$ 3,210
Weighted Average
Servicing Assets at Fair Value [Line Items]
Fair value of servicing rights, discount rate	8.80%	13.00%
Fair value of servicing rights, prepayment rate	18.60%	17.90%

Servicing Assets - Summary of A

Servicing Assets - Summary of Activity Pertaining to Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Servicing Asset At Fair Value Amount Roll Forward
Balance at beginning of period	$ 33,918	$ 35,365
Additions, net	2,333	2,859
Fair value changes:
Due to changes in valuation inputs or assumptions	2,946	(2,039)
Decay due to increases in principal paydowns or runoff	(1,453)	(2,653)
Balance at end of period	$ 37,744	$ 33,532

Borrowings - Total Outstanding

Borrowings - Total Outstanding Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Borrowings	$ 1,465,961	$ 1,542,093
Third Party Correspondent Bank | Revolving Line of Credit
Debt Instrument [Line Items]
Borrowings		14,488
Third Party Correspondent Bank | Term Loan
Debt Instrument [Line Items]
Borrowings	49,675
Federal Reserve Bank
Debt Instrument [Line Items]
Borrowings	1,410,000
Federal Reserve Bank | Paycheck Protection Program Liquidity Facility
Debt Instrument [Line Items]
Borrowings	1,410,785	1,527,596
Other long term debt
Debt Instrument [Line Items]
Borrowings	$ 5,501	$ 9

Borrowings - Total Outstandin_2

Borrowings - Total Outstanding Borrowings (Parenthetical) (Details) - USD ($)	Mar. 31, 2021	Apr. 30, 2020	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020
Debt Instrument [Line Items]
Borrowings	$ 1,465,961,000		$ 1,465,961,000	$ 1,542,093,000
Revolving Line of Credit
Debt Instrument [Line Items]
Debt instrument term				13 months
Debt instrument, maturity date				Oct. 10, 2021
Debt instrument, principal paydown	14,500,000
Current available credit facility	0		0
Third Party Correspondent Bank | Revolving Line of Credit
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity					$ 50,000,000
Borrowings				$ 14,488,000
Third Party Correspondent Bank | London Interbank Offered Rate (LIBOR) | Revolving Line of Credit
Debt Instrument [Line Items]
Basis spread on variable rate				1.15%
Third Party Correspondent Bank | Term Loan
Debt Instrument [Line Items]
Debt instrument face amount	$ 50,000,000		$ 50,000,000
Debt instrument fixed interest rate	2.95%		2.95%
Non-refundable loan origination fee			$ 325,000
Debt instrument term			60 months
Debt instrument, maturity date			Mar. 30, 2026
Borrowings	$ 49,675,000		$ 49,675,000
Federal Reserve Bank
Debt Instrument [Line Items]
Borrowings	1,410,000,000		1,410,000,000
Federal Reserve Bank | Paycheck Protection Program Liquidity Facility
Debt Instrument [Line Items]
Debt instrument fixed interest rate		0.35%
Borrowings	$ 1,410,785,000		$ 1,410,785,000	$ 1,527,596,000
Federal Reserve Bank | Paycheck Protection Program Liquidity Facility | Minimum
Debt Instrument [Line Items]
Debt instrument, maturity date		Apr. 1, 2022
Federal Reserve Bank | Paycheck Protection Program Liquidity Facility | Maximum
Debt Instrument [Line Items]
Debt instrument, maturity date		Mar. 20, 2026

Borrowings - Narrative (Details

Borrowings - Narrative (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Repurchased agreements, borrowing capacity	$ 5,000,000	$ 5,000,000
Repurchases agreements, outstanding balance	0	0
FHLB maximum amount available	1,960,000,000	2,010,000,000
Federal Funds Purchased
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	167,500,000	167,500,000
Short term borrowings	0	0
Federal Reserve Bank Advances | Federal Reserve Bank
Debt Instrument [Line Items]
Collateral amount	2,230,000,000	2,220,000,000
Remaining available credit facility	1,790,000,000	1,770,000,000
Short term borrowings	$ 0	$ 0

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Recorded Amount of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	$ 775,177	$ 750,098
Loans held for sale	35,936	36,111
Loans held for investment	790,797	815,374
Servicing assets	37,744	33,918	$ 33,532	$ 35,365
US government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	15,829	15,919
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	755,775	730,454
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	35,936	36,111
Loans held for investment	790,797	815,374
Servicing assets	37,744	33,918
Equity warrant assets	1,314	908
Total assets at fair value	1,643,299	1,638,760
Recurring | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	3,573	3,725
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets	0	0
Equity warrant assets	0	0
Total assets at fair value	0	0
Recurring | Level 1 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets	0	0
Equity warrant assets	0	0
Total assets at fair value	777,412	752,353
Recurring | Level 2 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	3,477	3,629
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	35,936	36,111
Loans held for investment	790,797	815,374
Servicing assets	37,744	33,918
Equity warrant assets	1,314	908
Total assets at fair value	865,887	886,407
Recurring | Level 3 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	96	96
Total assets at fair value	96	96
Recurring | US government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	15,829	15,919
Recurring | US government agencies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Recurring | US government agencies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	15,829	15,919
Recurring | US government agencies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	755,775	730,454
Recurring | Mortgage-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Recurring | Mortgage-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	755,775	730,454
Recurring | Mortgage-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Recurring | Mutual Fund
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual fund	2,331	2,351
Recurring | Mutual Fund | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual fund	0	0
Recurring | Mutual Fund | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual fund	2,331	2,351
Recurring | Mutual Fund | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual fund	$ 0	$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Recorded Amount of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Parenthetical) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Equity Warrant Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity warrant assets, fair value	$ 21,000	$ 164,000
Gain (loss) on derivative, net	385,000	(32,000)
Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value adjustment gain (loss)	$ 0	$ 1,000

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair value option that were 90 days or more past due and still accruing	$ 0		$ 0
Unpaid principal balance of unguaranteed exposure for nonaccruals	7,400,000		$ 6,900,000
Gains/(Losses) related to borrower specific credit risk	$ 191,000	$ (922,000)

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Summary of Fair Value Carrying Amount and Unpaid Principal Outstanding of Loans Under Fair Value Option (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value Option Quantitative Disclosures [Line Items]
Total Loans, Fair Value Carrying amount	$ 826,733	$ 851,485
Total Loans, Unpaid Principal Balance	852,652	883,217
Total Loans, Difference	(25,919)	(31,732)
Nonaccruals, Fair Value Carrying amount	40,234	35,499
Nonaccruals, Unpaid Principal Balance	43,973	39,318
Nonaccruals, Difference	(3,739)	(3,819)
90 Days or More Past Due, Fair Value Carrying Amount	26,249	25,532
90 Days or More Past Due, Unpaid Principal Balance	29,089	28,741
90 Days or More Past Due, Difference	(2,840)	(3,209)
Loans held for sale
Fair Value Option Quantitative Disclosures [Line Items]
Total Loans, Fair Value Carrying amount	35,936	36,111
Total Loans, Unpaid Principal Balance	37,923	38,135
Total Loans, Difference	(1,987)	(2,024)
Loans held for investment
Fair Value Option Quantitative Disclosures [Line Items]
Total Loans, Fair Value Carrying amount	790,797	815,374
Total Loans, Unpaid Principal Balance	814,729	845,082
Total Loans, Difference	(23,932)	(29,708)
Nonaccruals, Fair Value Carrying amount	40,234	35,499
Nonaccruals, Unpaid Principal Balance	43,973	39,318
Nonaccruals, Difference	(3,739)	(3,819)
90 Days or More Past Due, Fair Value Carrying Amount	26,249	25,532
90 Days or More Past Due, Unpaid Principal Balance	29,089	28,741
90 Days or More Past Due, Difference	$ (2,840)	$ (3,209)

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Schedule of Net Gains (Losses) from Changes in Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Fair Value Option Quantitative Disclosures [Line Items]
Gains (Losses) on Loans Accounted for under the Fair Value Option	$ 4,218	$ (10,638)
Loans held for sale
Fair Value Option Quantitative Disclosures [Line Items]
Gains (Losses) on Loans Accounted for under the Fair Value Option	36	120
Loans held for investment
Fair Value Option Quantitative Disclosures [Line Items]
Gains (Losses) on Loans Accounted for under the Fair Value Option	$ 4,182	$ (10,758)

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Summary of the Activity Pertaining to Loans Accounted for Under Fair Value Option (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Loans held for sale
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Balance at beginning of period	$ 36,111	$ 16,198
Issuances & repurchases		3,045
Fair value changes	36	120
Settlements	(211)	(212)
Balance at end of period	35,936	19,151
Loans held for investment
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Balance at beginning of period	815,374	824,520
Issuances & repurchases	5,570	61,611
Fair value changes	4,184	(10,758)
Settlements	(34,331)	(43,947)
Balance at end of period	$ 790,797	$ 831,426

Fair Value of Financial Instr_9

Fair Value of Financial Instruments - Recorded Amount of Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis (Details) - Non-recurring Fair Value - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent loans	$ 6,935	$ 4,159
Foreclosed assets	4,185	4,155
Long-lived asset held for sale		8,874
Equity security investment with a non-readily determinable fair value		25,367
Total assets at fair value	11,120	42,555
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived asset held for sale		8,874
Total assets at fair value		8,874
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity security investment with a non-readily determinable fair value		25,367
Total assets at fair value		25,367
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent loans	6,935	4,159
Foreclosed assets	4,185	4,155
Total assets at fair value	$ 11,120	$ 8,314

Fair Value of Financial Inst_10

Fair Value of Financial Instruments - Analysis of Level 3 Valuation Techniques (Details) $ in Thousands	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	$ 1,643,299	$ 1,638,760
Recurring | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	865,887	886,407
Non-recurring Fair Value
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	11,120	42,555
Non-recurring Fair Value | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	11,120	8,314
Municipal bonds | Recurring | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	$ 96	$ 96
Municipal bonds | Discounted Expected Cash Flows | Discount rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Municipal bond, measurement input	0.045	0.043
Municipal bonds | Discounted Expected Cash Flows | Prepayment speed | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Municipal bond, measurement input	0.050	0.050
Loans held for sale | Recurring | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	$ 35,936	$ 36,111
Loans held for sale | Minimum | Discounted Expected Cash Flows | Discount rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.008	0.042
Loans held for sale | Maximum | Discounted Expected Cash Flows | Discount rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.174	0.185
Loans held for sale | Weighted Average | Discounted Expected Cash Flows | Prepayment speed | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.190	0.190
Loans held for investment | Recurring | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	$ 790,797	$ 815,374
Loans held for investment | Minimum | Discounted Expected Cash Flows | Discount rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.008	0.042
Loans held for investment | Minimum | Discounted Expected Cash Flows | Loss rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0	0
Loans held for investment | Minimum | Discounted appraisals | Discount rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.100	0.100
Loans held for investment | Maximum | Discounted Expected Cash Flows | Discount rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.174	0.185
Loans held for investment | Maximum | Discounted Expected Cash Flows | Loss rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.763	0.732
Loans held for investment | Maximum | Discounted appraisals | Discount rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.650	0.830
Loans held for investment | Weighted Average | Discounted Expected Cash Flows | Prepayment speed | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.190	0.190
Loans held for investment | Weighted Average | Discounted Expected Cash Flows | Loss rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.012	0.015
Equity Warrant Assets | Recurring | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	$ 1,314	$ 908
Equity Warrant Assets | Black-Scholes Option Pricing Model | Discount rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.200	0.200
Equity Warrant Assets | Minimum | Black-Scholes Option Pricing Model | Expected Volatility Rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.266	0.265
Equity Warrant Assets | Minimum | Black-Scholes Option Pricing Model | Risk-Free Interest Rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.0092	0.0036
Equity Warrant Assets | Minimum | Black-Scholes Option Pricing Model | Expected Term | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	4 years	5 years
Equity Warrant Assets | Maximum | Black-Scholes Option Pricing Model | Expected Volatility Rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.894	0.871
Equity Warrant Assets | Maximum | Black-Scholes Option Pricing Model | Risk-Free Interest Rate | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.0174	0.0093
Equity Warrant Assets | Maximum | Black-Scholes Option Pricing Model | Expected Term | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	10 years	10 years
Collateral dependent loans | Non-recurring Fair Value | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	$ 6,935	$ 4,159
Collateral dependent loans | Minimum | Discounted appraisals | Discount rate | Non-recurring Fair Value
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.100	0.100
Collateral dependent loans | Maximum | Discounted appraisals | Discount rate | Non-recurring Fair Value
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.650	0.830
Foreclosed assets | Non-recurring Fair Value | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Asset, fair value	$ 4,185	$ 4,155
Foreclosed assets | Minimum | Discounted appraisals | Discount rate | Non-recurring Fair Value
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.075	0.100
Foreclosed assets | Maximum | Discounted appraisals | Discount rate | Non-recurring Fair Value
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.100	0.200

Fair Value of Financial Inst_11

Fair Value of Financial Instruments - Carrying Amount and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financial assets
Cash and due from banks	$ 630,081	$ 297,167
Federal funds sold	5,461	21,153
Certificates of deposit with other banks	6,500	6,500
Loans held for sale	35,936	36,111
Loans and leases, net of allowance for credit losses on loans and leases	790,797	815,374
Carrying Amount
Financial assets
Cash and due from banks	630,081	297,167
Federal funds sold	5,461	21,153
Certificates of deposit with other banks	6,500	6,500
Loans held for sale	1,040,805	1,139,359
Loans and leases, net of allowance for credit losses on loans and leases	4,613,540	4,277,250
Financial liabilities
Deposits	6,316,004	5,712,828
Borrowings	1,465,961	1,542,093
Estimate of Fair Value Measurement
Financial assets
Cash and due from banks	630,081	297,167
Federal funds sold	5,461	21,153
Certificates of deposit with other banks	6,839	6,906
Loans held for sale	1,136,156	1,235,122
Loans and leases, net of allowance for credit losses on loans and leases	4,722,518	4,366,489
Financial liabilities
Deposits	6,227,312	5,711,781
Borrowings	1,451,459	1,542,171
Level 1 | Estimate of Fair Value Measurement
Financial assets
Cash and due from banks	630,081	297,167
Federal funds sold	5,461	21,153
Certificates of deposit with other banks	6,839	6,906
Level 2 | Estimate of Fair Value Measurement
Financial liabilities
Deposits	6,227,312	5,711,781
Level 3 | Estimate of Fair Value Measurement
Financial assets
Loans held for sale	1,136,156	1,235,122
Loans and leases, net of allowance for credit losses on loans and leases	4,722,518	4,366,489
Financial liabilities
Borrowings	$ 1,451,459	$ 1,542,171

Commitments and Contingencies -

Commitments and Contingencies - Summary of Commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Total unfunded off-balance-sheet credit risk	$ 2,532,061	$ 2,077,823
Commitments to Extend Credit
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Total unfunded off-balance-sheet credit risk	2,526,132	2,054,910
Standby Letters of Credit
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Total unfunded off-balance-sheet credit risk	$ 5,929	$ 22,913

Commitments and Contingencies_2

Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)Customer	Dec. 31, 2020USD ($)
Concentration Risk [Line Items]
Commitment letters expiration period (in days)	90 days
Commitments for on-balance-sheet investments	$ 12.4	$ 15.8
Maximum retained credit exposure	15
Future minimum lease payments due under non-cancelable operating leases	$ 74.1
Fourteen Relationships
Concentration Risk [Line Items]
Number of relationships that have retained unguaranteed exposure | Customer	14
Retained credit exposure	$ 321.2
Retained exposure, amount disbursed	132.2
One Relationship
Concentration Risk [Line Items]
Future minimum lease payments due under non-cancelable operating leases	$ 22.4

Stock Plans - Narrative (Detail

Stock Plans - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	May 24, 2016	Mar. 31, 2021	May 15, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, granted (in shares)		0
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs, stock options		$ 1.9
Unrecognized compensation costs period recognized		1 year 5 months 1 day
Market Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs period recognized		7 days
Number of shares, vested		397,500
Performance stock price condition met, price one		$ 45
Performance stock price condition met, price two		48
Performance stock price condition met, price three		$ 50
Compensation remaining expense fully recognized		$ 2.1
Shares, granted, weighted average grant date fair value		$ 7.89
Share price threshold for performance criteria (in dollars per share)		$ 55
Number of days share price must be maintained		20 days
Units earned as a percent of units awarded		100.00%
Granted (in shares)		0
Unrecognized compensation costs		$ 1.1
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs, stock options		$ 51.6
Unrecognized compensation costs period recognized		5 years 2 months 4 days
Shares, granted, weighted average grant date fair value		$ 50.66
Granted (in shares)		792,893
2015 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common voting shares authorized (in shares)	7,000,000		8,750,000
Options or restricted shares of expiration period	10 years
Percentage of fair market value of common stock	100.00%
2015 Omnibus Plan | Stock Options | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
2015 Omnibus Plan | Restricted Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	7 years
Annual Long Term Incentive Stock Compensation RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		288,680
Special Retention RSU Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		500,000

Segments - Narrative (Details)

Segments - Narrative (Details)	3 Months Ended
	Mar. 31, 2021Segment
Segment Reporting [Abstract]
Number of reportable segments	2

Segments - Schedule of Segment

Segments - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Interest income	$ 88,225	$ 63,473
Interest expense	18,275	23,312
Net interest income	69,950	40,161
(Recovery of) provision for loan and lease credit losses	(873)	11,792
Noninterest income	31,057	5,742
Noninterest expense	58,272	49,491
Income tax expense (benefit)	4,181	(7,778)
Net income (loss)	39,427	(7,602)
Total assets	8,417,875	5,273,569	$ 7,872,303
Operating Segments | Banking
Segment Reporting Information [Line Items]
Interest income	88,099	63,448
Interest expense	18,165	23,255
Net interest income	69,934	40,193
(Recovery of) provision for loan and lease credit losses	(873)	11,792
Noninterest income	30,524	5,964
Noninterest expense	55,625	46,687
Income tax expense (benefit)	4,650	(4,170)
Net income (loss)	41,056	(8,152)
Total assets	8,281,729	5,133,447
Operating Segments | Fintech
Segment Reporting Information [Line Items]
Interest income	122
Net interest income	122
Noninterest income	(4)	(880)
Noninterest expense	1,020	1,490
Income tax expense (benefit)	5	(244)
Net income (loss)	(907)	(2,126)
Total assets	91,662	84,366
Other
Segment Reporting Information [Line Items]
Interest income	4	25
Interest expense	110	57
Net interest income	(106)	(32)
Noninterest income	537	658
Noninterest expense	1,627	1,314
Income tax expense (benefit)	(474)	(3,364)
Net income (loss)	(722)	2,676
Total assets	$ 44,484	$ 55,756

Subsequent Events - Narrative (

Subsequent Events - Narrative (Details) - Subsequent Event - Greenlight - Equity Securities $ in Millions	Apr. 27, 2021USD ($)
Subsequent Event [Line Items]
Close of stock issued during period value in newly issued shares	$ 260
Pre-tax non-cash gain	$ 6.9