BankUnited (BKU) 10-Q2 May 232023 Q1 Quarterly reportFinancial data

Company Profile

Cover Page

Cover Page - shares	3 Months Ended
Cover Page - shares	Mar. 31, 2023	Apr. 28, 2023
Document Information [Line Items]
Document Type	10-Q
Document Transition Report	false
Document Period End Date	Mar. 31, 2023
Current Fiscal Year End Date	--12-31
Entity File Number	001-35039
Entity Registrant Name	BankUnited, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-0162450
Entity Address, Address Line One	14817 Oak Lane
Entity Address, City or Town	Miami Lakes
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33016
City Area Code	305
Local Phone Number	569-2000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock Shares Outstanding		74,406,617
Entity Central Index Key	0001504008
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false
Document Quarterly Report	true
NEW YORK STOCK EXCHANGE, INC.
Document Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 Par Value
Trading Symbol	BKU
Security Exchange Name	NYSE

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash and due from banks:
Non-interest bearing	$ 15,740	$ 16,068
Interest bearing	888,258	556,579
Cash and cash equivalents	903,998	572,647
Investment securities (including securities reported at fair value of $9,523,599 and $9,745,327)	9,533,599	9,755,327
Non-marketable equity securities	384,697	294,172
Loans	24,892,894	24,885,988
Allowance for credit losses	(158,792)	(147,946)
Loans, net	24,734,102	24,738,042
Bank owned life insurance	318,305	308,212
Operating lease equipment, net	526,311	539,799
Goodwill	77,637	77,637
Other assets	710,554	740,876
Total assets	37,189,203	37,026,712
Demand deposits:
Non-interest bearing	7,366,642	8,037,848
Interest bearing	2,505,150	2,142,067
Savings and money market	10,601,129	13,061,341
Time	5,249,977	4,268,078
Total deposits	25,722,898	27,509,334
Federal funds purchased	0	190,000
FHLB advances	7,550,000	5,420,000
Notes and other borrowings	720,787	720,923
Other liabilities	714,124	750,474
Total liabilities	34,707,809	34,590,731
Commitments and contingencies
Stockholders' equity:
Common Stock, Value, Issued	744	757
Paid-in capital	269,353	321,729
Retained earnings	2,585,981	2,551,400
Accumulated other comprehensive loss	(374,684)	(437,905)
Total stockholders' equity	2,481,394	2,435,981
Total liabilities and stockholders' equity	37,189,203	37,026,712
Interest income on loans
Cash and due from banks:
Allowance for credit losses	$ (158,792)	$ (147,946)

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
ASSETS
Investment securities recorded at fair value	$ 9,523,599	$ 9,745,327
Stockholders' equity:
Common stock, par value (in Dollars per Share)		$ 0.01
Common stock, shares authorized (in Shares)	400,000,000	400,000,000
Common stock, shares issued (in Shares)	74,423,365	75,674,587
Common stock, shares outstanding (in Shares)	74,423,365	75,674,587

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 31, 2022
Interest income:
Loans	$ 308,795	$ 191,562
Investment securities	118,758	43,048
Other	12,863	1,354
Total interest income	440,416	235,964
Interest expense:
Deposits	133,630	11,857
Borrowings	78,912	15,465
Total interest expense	212,542	27,322
Net interest income before provision for credit losses	227,874	208,642
Provision for credit losses	19,788	7,830
Net interest income after provision for credit losses	208,086	200,812
Non-interest income:
Deposit service charges and fees	5,545	5,960
Loss on investment securities, net	(12,549)	(7,868)
Lease financing	13,109	13,415
Other non-interest income	10,430	2,794
Total non-interest income	16,535	14,301
Non-interest expense:
Employee compensation and benefits	71,051	67,088
Occupancy and equipment	10,802	11,512
Deposit insurance expense	7,907	3,403
Professional fees	2,918	2,262
Technology	21,726	17,004
Depreciation and impairment of operating lease equipment	11,521	12,610
Other non-interest expense	26,855	12,445
Total non-interest expense	152,780	126,324
Income before income taxes	71,841	88,789
Provision for income taxes	18,959	21,639
Net income	$ 52,882	$ 67,150
Earnings per common share, basic	$ 0.71	$ 0.79
Earnings per common share, diluted	$ 0.70	$ 0.79

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 52,882	$ 67,150
Unrealized gains (losses) on investment securities available for sale:
Net unrealized holding gain (loss) arising during the period	(74,936)	174,980
Reclassification adjustment for net securities gains realized in income	(556)	(1,978)
Net change in unrealized gains (losses) on securities available for sale	74,380	(176,958)
Unrealized gains (losses) on derivative instruments:
Net unrealized holding gains (losses) arising during the period	(2,165)	31,179
Reclassification adjustment for net (gains) losses realized in income	(8,994)	4,020
Net change in unrealized gains (losses) on derivative instruments	(11,159)	35,199
Other comprehensive income (loss)	63,221	(141,759)
Comprehensive income (loss)	$ 116,103	$ (74,609)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 52,882	$ 67,150
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization and accretion, net	(2,078)	(3,382)
Provision for credit losses	19,788	7,830
Loss on investment securities, net	12,549	7,868
Equity based compensation	5,280	4,112
Depreciation and amortization	19,430	18,947
Deferred income taxes	9,391	12,924
Proceeds from sale of loans held for sale, net	103,679	248,843
Other:
Increase (Decrease) in Other Operating Assets	(53,771)	57,729
(Decrease) increase in other liabilities	(25,782)	35,269
Net cash provided by operating activities	141,368	457,290
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of investment securities	(74,185)	(1,698,615)
Proceeds from repayments and calls of investment securities	251,512	559,785
Proceeds from sale of investment securities	131,879	482,307
Purchases of non-marketable equity securities	(263,500)	(106,875)
Proceeds from redemption of non-marketable equity securities	172,975	52,200
Purchases of loans	(186,792)	(862,163)
Loan originations and repayments, net	73,367	1,000,544
Other investing activities	(9,032)	(6,805)
Net cash provided by (used in) investing activities	96,224	(579,622)
Cash flows from financing activities:
Net decrease in deposits	(1,786,436)	(896,827)
Net decrease in federal funds purchased	(190,000)	0
Additions to FHLB borrowings	2,455,000	1,810,000
Repayments of FHLB borrowings	(325,000)	(320,000)
Dividends paid	(19,346)	(19,876)
Repurchase of common stock	(55,022)	(82,103)
Other financing activities	14,563	13,773
Net cash provided by financing activities	93,759	504,967
Net increase in cash and cash equivalents	331,351	382,635
Cash and cash equivalents, beginning of period	572,647	314,857
Cash and cash equivalents, end of period	903,998	697,492
Supplemental Cash Flow Information [Abstract]
Interest paid	184,657	17,616
Income taxes paid (refunded), net	8,947	(13,092)
Supplemental schedule of non-cash investing and financing activities:
Transfers from loans to loans held for sale	103,398	254,826
Dividends declared, not paid	$ 19,637	$ 20,966

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($)	Total	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Paid-in Capital	Paid-in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Cumulative Effect, Period of Adoption, Adjusted Balance
Shares, Outstanding, Beginning Balance at Dec. 31, 2021			85,647,986
Balance at Dec. 31, 2021	$ 3,037,761,000		$ 856,000		$ 707,503,000		$ 2,345,342,000		$ (15,940,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	(74,609,000)		$ 0		0		67,150,000		(141,759,000)
Stock Dividends, Shares			0
Dividends ($0.27 per common share)	$ (20,966,000)		$ 0		0		(20,966,000)		0
Common Stock, Dividends, Per Share, Declared	$ 0.25
Equity based compensation (in Shares)			468,050
Equity based compensation	$ 6,331,000		$ 5,000		6,326,000		0		0
Forfeiture of unvested shares (in Shares)			(132,112)
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	(5,182,000)		$ (1,000)		(5,181,000)		0		0
Stock Repurchased During Period, Shares			(1,931,903)
Stock Repurchased During Period, Value	(82,103,000)		$ (19,000)		(82,084,000)		0		0
Balance (in Shares) at Mar. 31, 2022			84,052,021
Balance at Mar. 31, 2022	2,861,232,000		$ 841,000		626,564,000		2,391,526,000		(157,699,000)
Shares, Outstanding, Beginning Balance at Dec. 31, 2022			75,674,587
Balance at Dec. 31, 2022	2,435,981,000	$ 2,437,317,000	$ 757,000	$ 757,000	321,729,000	$ 321,729,000	2,551,400,000	$ 2,552,736,000	(437,905,000)	$ (437,905,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	116,103,000		$ 0		0		52,882,000		63,221,000
Stock Dividends, Shares			0
Dividends ($0.27 per common share)	$ (19,637,000)		$ 0		0		(19,637,000)		0
Common Stock, Dividends, Per Share, Declared	$ 0.27
Equity based compensation (in Shares)			596,979
Equity based compensation	$ 9,589,000		$ 5,000		9,584,000		0		0
Forfeiture of unvested shares (in Shares)			(213,956)
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	(6,956,000)		$ (2,000)		(6,954,000)		0		0
Stock Repurchased During Period, Shares			(1,634,245)
Stock Repurchased During Period, Value	(55,022,000)		$ (16,000)		(55,006,000)		0		0
Balance (in Shares) at Mar. 31, 2023			74,423,365
Balance at Mar. 31, 2023	$ 2,481,394,000		$ 744,000		$ 269,353,000		$ 2,585,981,000		$ (374,684,000)

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Note 1 Basis of Presentation and Summary of Significant Accounting Policies BankUnited, Inc. is a national bank holding company with one wholly-owned subsidiary, BankUnited, collectively, the Company. BankUnited, a national banking association headquartered in Miami Lakes, Florida, provides a full range of banking and related services to individual and corporate customers through banking centers in Florida, the New York metropolitan area and Dallas, Texas at March 31, 2023. The Bank also offers certain commercial lending and deposit products through national platforms and regional wholesale banking offices. The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X of the SEC. Accordingly, these do not include all of the information and footnotes required for a fair presentation of financial position, results of operations and cash flows in conformity with GAAP and should be read in conjunction with the Company’s consolidated financial statements and the notes thereto appearing in BKU’s Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2023 are not necessarily indicative of the results that may be expected in future periods. The Company has a single operating segment and thus a single reportable segment. While management monitors the revenue streams of its various business units, the business units serve a similar base of primarily commercial clients, providing a similar range of products and services, managed through similar processes and platforms. The Company’s chief operating decision maker makes company-wide resource allocation decisions and assessments of performance based on a collective assessment of the Company’s operations. Accounting Estimates In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses and disclosures of contingent assets and liabilities. Actual results could differ significantly from these estimates. The most significant estimate impacting the Company's consolidated financial statements is the ACL. New Accounting Pronouncements Adopted During the Three Months Ended March 31, 2023 ASU No. 2022-02, Financial Instruments—Credit Losses (Topic 326). This ASU eliminated the accounting guidance for TDRs by creditors in Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors. The ASU enhanced disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty, updated certain requirements related to accounting for credit losses under ASC 326 and required disclosure of current-period gross charge-offs of financing receivables by year of origination. The Company adopted this ASU in the first quarter of 2023, prospectively, except with respect to the recognition and measurement of TDRs, for which the modified retrospective transition method was applied. The Company recorded a reduction to the ACL of $1.8 million and a cumulative-effect adjustment, net of tax, to retained earnings of $1.3 million on January 1, 2023. Accounting Pronouncements Not Yet Adopted ASU No. 2023-02— Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures using the Proportional Amortization Method (A Consensus of the Emerging Issues Task Force).

Earnings Per Common Share

Earnings Per Common Share	3 Months Ended
Earnings Per Common Share	Mar. 31, 2023
Earnings Per Share [Abstract]
Earnings Per Common Share	Note 2 Earnings Per Common Share The computation of basic and diluted earnings per common share is presented below for the periods indicated (in thousands, except share and per share data): Three Months Ended March 31, c 2023 2022 Basic earnings per common share: Numerator: Net income $ 52,882 $ 67,150 Distributed and undistributed earnings allocated to participating securities (798) (929) Income allocated to common stockholders for basic earnings per common share $ 52,084 $ 66,221 Denominator: Weighted average common shares outstanding 74,755,002 84,983,873 Less average unvested stock awards (1,193,881) (1,211,807) Weighted average shares for basic earnings per common share 73,561,121 83,772,066 Basic earnings per common share $ 0.71 $ 0.79 Diluted earnings per common share: Numerator: Income allocated to common stockholders for basic earnings per common share $ 52,084 $ 66,221 Adjustment for earnings reallocated from participating securities 3 1 Income used in calculating diluted earnings per common share $ 52,087 $ 66,222 Denominator: Weighted average shares for basic earnings per common share 73,561,121 83,772,066 Dilutive effect of certain share-based awards 447,581 137,704 Weighted average shares for diluted earnings per common share 74,008,702 83,909,770 Diluted earnings per common share $ 0.70 $ 0.79 Potentially dilutive unvested shares totaling 1,190,511 and 1,267,676 were outstanding at March 31, 2023 and 2022, respectively, but excluded from the calculation of diluted earnings per common share because their inclusion would have been anti-dilutive.

Investment Securities

Investment Securities	3 Months Ended
Investment Securities	Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Note 3 Investment Securities Investment securities include investment securities available for sale, marketable equity securities, and investment securities held to maturity. The investment securities portfolio consisted of the following at the dates indicated (in thousands): March 31, 2023 Amortized Cost Gross Unrealized Carrying Value (1) Gains Losses Investment securities available for sale: U.S. Treasury securities $ 129,140 $ 290 $ (11,047) $ 118,383 U.S. Government agency and sponsored enterprise residential MBS 2,028,070 1,528 (49,065) 1,980,533 U.S. Government agency and sponsored enterprise commercial MBS 584,464 140 (66,222) 518,382 Private label residential MBS and CMOs 2,825,107 807 (300,432) 2,525,482 Private label commercial MBS 2,533,319 887 (99,387) 2,434,819 Single family real estate-backed securities 468,225 — (19,724) 448,501 Collateralized loan obligations 1,126,532 416 (20,870) 1,106,078 Non-mortgage asset-backed securities 98,812 — (4,713) 94,099 State and municipal obligations 106,897 926 (3,873) 103,950 SBA securities 127,959 310 (3,666) 124,603 10,028,525 $ 5,304 $ (578,999) 9,454,830 Investment securities held to maturity 10,000 10,000 $ 10,038,525 9,464,830 Marketable equity securities 68,769 $ 9,533,599 December 31, 2022 Amortized Cost Gross Unrealized Carrying Value (1) Gains Losses Investment securities available for sale: U.S. Treasury securities $ 148,956 $ 63 $ (13,178) $ 135,841 U.S. Government agency and sponsored enterprise residential MBS 2,036,693 1,334 (54,859) 1,983,168 U.S. Government agency and sponsored enterprise commercial MBS 600,517 — (75,423) 525,094 Private label residential MBS and CMOs 2,864,589 54 (333,980) 2,530,663 Private label commercial MBS 2,645,168 176 (120,990) 2,524,354 Single family real estate-backed securities 502,194 — (31,753) 470,441 Collateralized loan obligations 1,166,838 151 (30,526) 1,136,463 Non-mortgage asset-backed securities 102,194 — (6,218) 95,976 State and municipal obligations 122,181 695 (6,215) 116,661 SBA securities 139,320 381 (3,919) 135,782 10,328,650 $ 2,854 $ (677,061) 9,654,443 Investment securities held to maturity 10,000 10,000 $ 10,338,650 9,664,443 Marketable equity securities 90,884 $ 9,755,327 (1) At fair value except for securities held to maturity. Investment securities held to maturity at March 31, 2023 and December 31, 2022 consisted of one State of Israel bond maturing in 2024. Accrued interest receivable on investments totaled $36 million and $34 million at March 31, 2023 and December 31, 2022, respectively, and is included in other assets in the accompanying consolidated balance sheets. At March 31, 2023, contractual maturities of investment securities available for sale, adjusted for anticipated prepayments when applicable, were as follows (in thousands): Amortized Cost Fair Value Due in one year or less $ 1,399,602 $ 1,345,012 Due after one year through five years 5,563,191 5,343,463 Due after five years through ten years 1,811,023 1,648,170 Due after ten years 1,254,709 1,118,185 $ 10,028,525 $ 9,454,830 The carrying value of securities pledged as collateral for FHLB advances, public deposits, interest rate swaps and to secure borrowing capacity at the FRB totaled $8.4 billion and $4.1 billion at March 31, 2023 and December 31, 2022, respectively. The following table provides information about gains and losses on investment securities for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Gross realized gains on investment securities AFS $ 772 $ 2,750 Gross realized losses on investment securities AFS (20) (77) Net realized gain 752 2,673 Net losses on marketable equity securities recognized in earnings (13,301) (10,541) Loss on investment securities, net $ (12,549) $ (7,868) The following tables present the aggregate fair value and the aggregate amount by which amortized cost exceeded fair value for investment securities available for sale in unrealized loss positions aggregated by investment category and length of time that individual securities had been in continuous unrealized loss positions at the dates indicated (in thousands): March 31, 2023 Less than 12 Months 12 Months or Greater Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. Treasury securities $ — $ — $ 98,433 $ (11,047) $ 98,433 $ (11,047) U.S. Government agency and sponsored enterprise residential MBS 450,166 (4,814) 1,426,663 (44,251) 1,876,829 (49,065) U.S. Government agency and sponsored enterprise commercial MBS 85,834 (2,507) 418,940 (63,715) 504,774 (66,222) Private label residential MBS and CMOs 132,246 (4,089) 2,283,623 (296,343) 2,415,869 (300,432) Private label commercial MBS 292,200 (5,388) 1,967,412 (93,999) 2,259,612 (99,387) Single family real estate-backed securities 69,334 (117) 379,167 (19,607) 448,501 (19,724) Collateralized loan obligations 191,045 (1,455) 862,512 (19,415) 1,053,557 (20,870) Non-mortgage asset-backed securities 8,184 (54) 85,915 (4,659) 94,099 (4,713) State and municipal obligations 6,352 (74) 27,842 (3,799) 34,194 (3,873) SBA securities 41,923 (567) 66,337 (3,099) 108,260 (3,666) $ 1,277,284 $ (19,065) $ 7,616,844 $ (559,934) $ 8,894,128 $ (578,999) December 31, 2022 Less than 12 Months 12 Months or Greater Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. Treasury securities $ 29,198 $ (495) $ 86,744 $ (12,683) $ 115,942 $ (13,178) U.S. Government agency and sponsored enterprise residential MBS 1,243,286 (26,789) 672,322 (28,070) 1,915,608 (54,859) U.S. Government agency and sponsored enterprise commercial MBS 236,102 (5,736) 288,992 (69,687) 525,094 (75,423) Private label residential MBS and CMOs 1,103,578 (93,480) 1,413,642 (240,500) 2,517,220 (333,980) Private label commercial MBS 1,191,969 (39,729) 1,223,223 (81,261) 2,415,192 (120,990) Single family real estate-backed securities 391,421 (22,293) 79,020 (9,460) 470,441 (31,753) Collateralized loan obligations 596,803 (14,020) 494,945 (16,506) 1,091,748 (30,526) Non-mortgage asset-backed securities 95,976 (6,218) — — 95,976 (6,218) State and municipal obligations 67,444 (6,154) 1,114 (61) 68,558 (6,215) SBA securities 42,900 (553) 74,291 (3,366) 117,191 (3,919) $ 4,998,677 $ (215,467) $ 4,334,293 $ (461,594) $ 9,332,970 $ (677,061) The Company monitors its investment securities available for sale for credit loss impairment on an individual security basis. No securities were determined to be credit loss impaired during the three months ended March 31, 2023 and 2022. At March 31, 2023, the Company did not have an intent to sell securities that were in unrealized loss positions and it was not more likely than not that the Company would be required to sell these securities before recovery of the amortized cost basis, which may be at maturity. In making this determination, the Company considered its current and projected liquidity position, its investment policy as to permissible holdings and concentration limits, regulatory requirements and other relevant factors. While recent events impacting the banking sector have impacted the liquidity profile of many banks, including BankUnited, the substantial majority of our investment securities are pledgeable at either the FHLB or FRB. We have not sold, and do not anticipate the need to sell, securities in unrealized loss positions to generate liquidity. At March 31, 2023, 569 securities available for sale were in unrealized loss positions. The amount of impairment related to 102 of these securities was considered insignificant both individually and in the aggregate, totaling approximately $0.9 million and no further analysis with respect to these securities was considered necessary. The basis for concluding that AFS securities were not credit loss impaired and no ACL was considered necessary at March 31, 2023 is further discussed below. Unrealized losses were generally attributable to rising interest rates and widening spreads related to the Federal Reserve's quantitative tightening and benchmark interest rate increases . Continuing uncertainty with respect to the trajectory of the economy has also led to market uncertainty, producing some yield curve dislocations. The investment securities AFS portfolio was in a net unrealized loss position of $573.7 million at March 31, 2023, compared to $674.2 million at December 31, 2022, improving by $100 million during the three months ended March 31, 2023. U.S. Government, U.S. Government Agency and Government Sponsored Enterprise Securities At March 31, 2023, five U.S. treasury, 150 U.S. Government agency and sponsored enterprise residential MBS, 26 U.S. Government agency and sponsored enterprise commercial MBS, and 18 SBA securities were in unrealized loss positions. The timely payment of principal and interest on these securities is explicitly or implicitly guaranteed by the U.S. Government. As such, there is an assumption of zero credit loss and the Company expects to recover the amortized cost basis of these securities. Private Label Securities: None of the impaired private label securities had missed principal or interest payments or had been downgraded by a NRSRO at March 31, 2023. The Company performed an analysis comparing the present value of cash flows expected to be collected to the amortized cost basis of impaired securities. This analysis was based on a scenario that we believe to be generally more conservative than our reasonable and supportable economic forecast at March 31, 2023, and incorporated assumptions about voluntary prepayment rates, collateral defaults, delinquencies, severity and other relevant factors as described further below. Our analysis also considered the structural characteristics of each security and the level of credit enhancement provided by that structure. Private label residential MBS and CMOs At March 31, 2023, 114 private label residential MBS and CMOs were in unrealized loss positions. Our analysis of cash flows expected to be collected on these securities incorporated assumptions about collateral default rates, voluntary prepayment rates, loss severity, delinquencies and recovery lag. In developing those assumptions, we took into account collateral quality measures such as FICO, LTV, documentation, loan type, property type, agency availability criteria and performing status. We also regularly monitor sector data including home price appreciation, forbearance, delinquency and prepay trends as well as other economic data that could be indicative of stress in the sector. Our March 31, 2023 analysis projected weighted average collateral losses for impaired securities in this category of 2% compared to weighted average credit support of 18%. As of March 31, 2023, 95% of impaired securities in this category, based on carrying value, were externally rated AAA, 1% were rated AA and 4% were rated A. Private label commercial MBS At March 31, 2023, 104 private label commercial MBS were in unrealized loss positions. Our analysis of cash flows expected to be collected on these securities incorporated assumptions about collateral default rates, voluntary prepayment rates, loss severity, delinquencies and recovery lag. In developing those assumptions, we took into account collateral quality and type, loan size, loan purpose and other qualitative factors. We also regularly monitor collateral watch lists, bankruptcy data, defeasance data, special servicing trends, delinquency and other economic data that could be indicative of stress in the sector. Our March 31, 2023 analysis projected weighted average collateral losses for impaired securities in this category of 7% compared to weighted average credit support of 43%. As of March 31, 2023, 85% of impaired securities in this category, based on carrying value, were externally rated AAA, 11% were rated AA and 4% were rated A. Single family real estate-backed securities At March 31, 2023, 15 single family rental real estate-backed securities were in unrealized loss positions. Our analysis of cash flows expected to be collected on these securities incorporated assumptions about collateral default rates, loss severity, delinquencies and recovery lag. We regularly monitor sector data including home price appreciation, forbearance, delinquency and prepay trends as well as other economic data that could be indicative of stress in the sector. Our March 31, 2023 analysis projected weighted average collateral losses for this category of 7% compared to weighted average credit support of 51%. As of March 31, 2023, 62% of impaired securities in this category, based on carrying value, were externally rated AAA, 15% were rated AA and one security was not externally rated. Collateralized loan obligations At March 31, 2023, 26 collateralized loan obligations were in unrealized loss positions. Our analysis of cash flows expected to be collected on these securities incorporated assumptions about collateral default rates, loss severity, and delinquencies, calibrated to take into account idiosyncratic risks associated with the underlying collateral. In developing those assumptions, we took into account each sector’s performance pre-, during and post the 2008 financial crisis. We regularly engage with bond managers to monitor trends in underlying collateral including potential downgrades and subsequent cash flow diversions, liquidity, ratings migration, and any other relevant developments. Our March 31, 2023 analysis projected weighted average collateral losses for impaired securities in this category of 10% compared to weighted average credit support of 44%. As of March 31, 2023, 80% of the impaired securities in this category, based on carrying value, were externally rated AAA, 16% were rated AA and 4% were rated A. Non-mortgage asset-backed securities At March 31, 2023, seven non-mortgage asset-backed securities were in unrealized loss positions. These securities are backed by student loan collateral. Our analysis of cash flows expected to be collected on these securities incorporated assumptions about collateral default rates, loss severity, delinquencies, voluntary prepayment rates and recovery lag. In developing assumptions, we took into account collateral type, delineated by whether collateral consisted of loans to borrowers in school, refinancing, or a mixture. Our March 31, 2023 analysis projected weighted average collateral losses for impaired securities in this category of 4% compared to weighted average credit support of 24%. As of March 31, 2023, 47% of the impaired securities in this category, based on carrying value, were externally rated AAA, and 53% were rated AA. State and Municipal Obligations

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	3 Months Ended
Loans and Allowance for Credit Losses	Mar. 31, 2023
Receivables [Abstract]
Loans and Allowance for Credit Losses	Note 4 Loans and Allowance for Credit Losses Loans consisted of the following at the dates indicated (dollars in thousands): March 31, 2023 December 31, 2022 Total Percent of Total Total Percent of Total Residential: 1-4 single family residential $ 7,133,615 28.6 % $ 7,128,834 28.6 % Government insured residential 1,656,129 6.7 % 1,771,880 7.1 % $ 8,789,744 35.3 % $ 8,900,714 35.7 % Commercial: Non-owner occupied commercial real estate 5,346,895 21.5 % 5,405,597 21.7 % Construction and land 324,805 1.3 % 294,360 1.2 % Owner occupied commercial real estate 1,863,333 7.5 % 1,890,813 7.6 % Commercial and industrial 6,617,716 26.5 % 6,417,721 25.9 % Pinnacle 919,584 3.7 % 912,122 3.7 % Bridge - franchise finance 239,205 1.0 % 253,774 1.0 % Bridge - equipment finance 266,715 1.1 % 286,147 1.1 % Mortgage warehouse lending 524,897 2.1 % 524,740 2.1 % 16,103,150 64.7 % 15,985,274 64.3 % Total loans 24,892,894 100.0 % 24,885,988 100.0 % Allowance for credit losses (158,792) (147,946) Loans, net $ 24,734,102 $ 24,738,042 Premiums, discounts and deferred fees and costs, excluding the non-credit related discount on PCD loans, totaled $56 million and $61 million at March 31, 2023 and December 31, 2022, respectively. The following table presents the amortized cost basis of residential PCD loans and the related amount of non-credit discount, net of the related ACL, at the dates indicated (in thousands): March 31, 2023 December 31, 2022 UPB $ 93,051 $ 96,437 Non-credit discount (42,357) (44,354) Total amortized cost of PCD loans 50,694 52,083 ACL related to PCD loans (381) (409) PCD loans, net $ 50,313 $ 51,674 Included in loans, net are direct or sales type finance leases totaling $641 million and $634 million at March 31, 2023 and December 31, 2022, respectively. The amount of income recognized from direct or sales type finance leases for the three months ended March 31, 2023 and 2022 totaled $4.3 million and $4.6 million, respectively and is included in interest income on loans in the consolidated statements of income. During the three months ended March 31, 2023 and 2022, the Company purchased residential loans totaling $187 million and $862 million, respectively. At March 31, 2023 and December 31, 2022, the Company had pledged loans with a carrying value of approximately $13.2 billion and $12.4 billion, respectively, as security for FHLB advances and Federal Reserve discount window capacity. At March 31, 2023 and December 31, 2022, accrued interest receivable on loans totaled $132 million and $129 million, respectively, and is included in other assets in the accompanying consolidated balance sheets. The amount of interest income reversed on non-accrual loans was not material for the three months ended March 31, 2023 and 2022. Allowance for credit losses The ACL was determined utilizing a 2-year reasonable and supportable forecast period. The quantitative portion of the ACL was determined using a single third-party provided economic scenario. The qualitative component was informed by alternate scenarios. Activity in the ACL is summarized below for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Residential Commercial Total Residential Commercial Total Beginning balance $ 11,741 $ 136,205 $ 147,946 $ 9,187 $ 117,270 $ 126,457 Impact of adoption of ASU 2022-02 (117) (1,677) (1,794) N/A N/A N/A Balance after adoption of ASU 2022-02 11,624 134,528 146,152 9,187 117,270 126,457 Provision (recovery) 170 17,425 17,595 (256) 7,702 7,446 Charge-offs — (7,899) (7,899) — (10,671) (10,671) Recoveries 3 2,941 2,944 26 2,185 2,211 Ending balance $ 11,797 $ 146,995 $ 158,792 $ 8,957 $ 116,486 $ 125,443 The ACL increased by $10.8 million, from 0.59% to 0.64% of total loans, at March 31, 2023 compared to December 31, 2022. The more significant factors impacting the provision for credit losses for the three months ended March 31, 2023 included a deteriorating economic forecast and an increase in certain specific reserves. The following table presents gross charge-offs during the three months ended March 31, 2023, by year of origination (in thousands): 2023 2022 2021 2020 2019 Prior to 2019 Revolving Loans Total CRE $ — $ — $ — $ — $ — $ 35 $ — $ 35 C&I — 64 24 — 265 935 309 1,597 Bridge - franchise finance — — — 33 2,409 3,825 — 6,267 $ — $ 64 $ 24 $ 33 $ 2,674 $ 4,795 $ 309 $ 7,899 The following table presents the components of the provision for credit losses for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Amount related to funded portion of loans $ 17,595 $ 7,446 Amount related to off-balance sheet credit exposures 2,193 384 Total provision for credit losses $ 19,788 $ 7,830 Credit quality information Credit quality of loans held for investment is continuously monitored by dedicated residential credit risk management and commercial portfolio management functions. The Company also has a workout and recovery department that monitors the credit quality of criticized and classified loans and an independent internal credit review function. Credit quality indicators for residential loans Management considers delinquency status to be the most meaningful indicator of the credit quality of residential loans, other than government insured residential loans. Delinquency statistics are updated at least monthly. LTV and FICO scores are also important indicators of credit quality for 1-4 single family residential loans other than government insured loans. FICO scores are generally updated semi-annually, and were most recently updated in the first quarter of 2023. LTVs are typically at origination since we do not routinely update residential appraisals. Substantially all of the government insured residential loans are government insured buyout loans, which the Company buys out of GNMA securitizations upon default. For these loans, traditional measures of credit quality are not particularly relevant considering the guaranteed nature of the loans and the underlying business model. Factors that impact risk inherent in the residential portfolio segment include national and regional economic conditions such as levels of unemployment, wages and interest rates, as well as residential property values. 1-4 Single Family Residential credit exposure, excluding government insured residential loans, based on delinquency status: March 31, 2023 Amortized Cost By Origination Year 2023 2022 2021 2020 2019 Prior Total Current $ 117,258 $ 1,179,778 $ 3,111,081 $ 900,912 $ 312,977 $ 1,447,072 $ 7,069,078 30 - 59 Days Past Due — 16,570 16,841 3,801 1,363 5,764 44,339 60 - 89 Days Past Due — 732 418 — — 3,611 4,761 90 Days or More Past Due — 2,765 2,158 2,029 2,000 6,485 15,437 $ 117,258 $ 1,199,845 $ 3,130,498 $ 906,742 $ 316,340 $ 1,462,932 $ 7,133,615 December 31, 2022 Amortized Cost By Origination Year 2022 2021 2020 2019 2018 Prior Total Current $ 1,185,611 $ 3,149,299 $ 916,923 $ 316,023 $ 177,891 $ 1,321,011 $ 7,066,758 30 - 59 Days Past Due 12,752 16,432 3,266 2,953 1,854 5,759 43,016 60 - 89 Days Past Due 252 1,196 229 1,347 — 1,052 4,076 90 Days or More Past Due 2,589 2,158 2,173 360 3,069 4,635 14,984 $ 1,201,204 $ 3,169,085 $ 922,591 $ 320,683 $ 182,814 $ 1,332,457 $ 7,128,834 1-4 Single Family Residential credit exposure, excluding government insured residential loans, based on LTV: March 31, 2023 Amortized Cost By Origination Year LTV 2023 2022 2021 2020 2019 Prior Total Less than 61% $ 12,750 $ 280,999 $ 1,282,249 $ 344,679 $ 75,652 $ 491,970 $ 2,488,299 61% - 70% 23,708 296,695 848,469 228,400 78,531 348,041 1,823,844 71% - 80% 80,800 619,158 964,695 333,590 156,693 580,755 2,735,691 More than 80% — 2,993 35,085 73 5,464 42,166 85,781 $ 117,258 $ 1,199,845 $ 3,130,498 $ 906,742 $ 316,340 $ 1,462,932 $ 7,133,615 December 31, 2022 Amortized Cost By Origination Year LTV 2022 2021 2020 2019 2018 Prior Total Less than 61% $ 282,940 $ 1,301,279 $ 354,720 $ 76,404 $ 42,864 $ 472,090 $ 2,530,297 61% - 70% 295,206 857,008 231,732 80,383 49,047 310,649 1,824,025 71% - 80% 620,049 975,542 336,066 158,406 86,463 510,633 2,687,159 More than 80% 3,009 35,256 73 5,490 4,440 39,085 87,353 $ 1,201,204 $ 3,169,085 $ 922,591 $ 320,683 $ 182,814 $ 1,332,457 $ 7,128,834 1-4 Single Family Residential credit exposure, excluding government insured residential loans, based on FICO score: March 31, 2023 Amortized Cost By Origination Year FICO 2023 2022 2021 2020 2019 Prior Total 760 or greater $ 74,066 $ 809,442 $ 2,488,061 $ 712,689 $ 221,056 $ 995,139 $ 5,300,453 720 - 759 35,448 245,748 429,084 122,827 52,140 244,446 1,129,693 719 or less 7,744 144,655 213,353 71,226 43,144 223,347 703,469 $ 117,258 $ 1,199,845 $ 3,130,498 $ 906,742 $ 316,340 $ 1,462,932 $ 7,133,615 December 31, 2022 Amortized Cost By Origination Year FICO 2022 2021 2020 2019 2018 Prior Total 760 or greater $ 805,125 $ 2,513,045 $ 721,982 $ 212,574 $ 97,076 $ 944,783 $ 5,294,585 720 - 759 285,507 485,528 132,928 62,301 45,857 216,047 1,228,168 719 or less 110,572 170,512 67,681 45,808 39,881 171,627 606,081 $ 1,201,204 $ 3,169,085 $ 922,591 $ 320,683 $ 182,814 $ 1,332,457 $ 7,128,834 Credit quality indicators for commercial loans Factors that impact risk inherent in commercial portfolio segments include but are not limited to levels of economic activity, health of the national and regional economy, interest rates, industry trends, patterns of and trends in customer behavior that influence demand for our borrowers' products and services, and commercial real estate values. Internal risk ratings are considered the most meaningful indicator of credit quality for commercial loans. Internal risk ratings are generally indicative of the likelihood that a borrower will default, are a key factor influencing the level and nature of ongoing monitoring of loans and may impact the estimation of the ACL. Internal risk ratings are updated on a continuous basis. Generally, relationships with balances in excess of defined thresholds, ranging from $1 million to $3 million, are re-evaluated at least annually and more frequently if circumstances indicate that a change in risk rating may be warranted. The special mention rating is considered a transitional rating for loans exhibiting potential credit weaknesses that could result in deterioration of repayment prospects at some future date if not checked or corrected and that deserve management’s close attention. These borrowers may exhibit declining cash flows or revenues or increasing leverage. Loans with well-defined credit weaknesses that may result in a loss if the deficiencies are not corrected are assigned a risk rating of substandard. These borrowers may exhibit payment defaults, inadequate cash flows from current operations, operating losses, increasing balance sheet leverage, project cost overruns, unreasonable construction delays, exhausted interest reserves, declining collateral values, frequent overdrafts or past due real estate taxes. Loans with weaknesses so severe that collection in full is highly questionable or improbable, but because of certain reasonably specific pending factors have not been charged off, are assigned an internal risk rating of doubtful. Commercial credit exposure based on internal risk rating: March 31, 2023 Amortized Cost By Origination Year Revolving Loans 2023 2022 2021 2020 2019 Prior Total CRE Pass $ 66,399 $ 1,248,325 $ 732,160 $ 546,742 $ 1,106,358 $ 1,363,097 $ 197,073 $ 5,260,154 Special mention — 42,950 2,150 — 17,913 411 — 63,424 Substandard — 12,263 1,355 19,008 119,227 196,269 — 348,122 Total CRE $ 66,399 $ 1,303,538 $ 735,665 $ 565,750 $ 1,243,498 $ 1,559,777 $ 197,073 $ 5,671,700 C&I Pass $ 320,398 $ 1,768,713 $ 762,133 $ 428,383 $ 605,736 $ 1,203,423 $ 3,071,337 $ 8,160,123 Special mention 38 2,955 433 — 2,534 2,330 22,864 31,154 Substandard 9 54,757 11,705 18,988 53,187 114,667 28,760 282,073 Doubtful — — — — 6,985 714 — 7,699 Total C&I $ 320,445 $ 1,826,425 $ 774,271 $ 447,371 $ 668,442 $ 1,321,134 $ 3,122,961 $ 8,481,049 Pinnacle Pass $ 42,815 $ 170,252 $ 107,137 $ 62,406 $ 62,354 $ 474,620 $ — $ 919,584 Total Pinnacle $ 42,815 $ 170,252 $ 107,137 $ 62,406 $ 62,354 $ 474,620 $ — $ 919,584 Bridge - Franchise Finance Pass $ 2,389 $ 28,106 $ 38,134 $ 36,376 $ 26,549 $ 52,902 $ — $ 184,456 Special mention — — — — 5,120 2,083 — 7,203 Substandard — 281 1,499 1,936 21,548 22,282 — 47,546 Total Bridge - Franchise Finance $ 2,389 $ 28,387 $ 39,633 $ 38,312 $ 53,217 $ 77,267 $ — $ 239,205 Bridge - Equipment Finance Pass $ — $ 26,280 $ 51,539 $ 15,922 $ 83,887 $ 87,934 $ — $ 265,562 Substandard — — — — 1,153 — — 1,153 Total Bridge - Equipment Finance $ — $ 26,280 $ 51,539 $ 15,922 $ 85,040 $ 87,934 $ — $ 266,715 Mortgage Warehouse Lending Pass $ — $ — $ — $ — $ — $ — $ 524,897 $ 524,897 Total Mortgage Warehouse Lending $ — $ — $ — $ — $ — $ — $ 524,897 $ 524,897 December 31, 2022 Amortized Cost By Origination Year Revolving Loans 2022 2021 2020 2019 2018 Prior Total CRE Pass $ 1,256,300 $ 758,025 $ 550,133 $ 1,138,113 $ 512,125 $ 932,030 $ 196,963 $ 5,343,689 Special mention — — — 18,006 — 709 — 18,715 Substandard 12,332 1,355 20,103 98,438 56,974 148,351 — 337,553 Total CRE $ 1,268,632 $ 759,380 $ 570,236 $ 1,254,557 $ 569,099 $ 1,081,090 $ 196,963 $ 5,699,957 C&I Pass $ 1,880,853 $ 825,410 $ 445,988 $ 689,003 $ 416,287 $ 832,952 $ 2,900,336 $ 7,990,829 Special mention 63 — 208 3,880 — 20,657 310 25,118 Substandard 25,898 13,916 3,319 103,625 19,715 104,190 21,277 291,940 Doubtful — — — — 647 — — 647 Total C&I $ 1,906,814 $ 839,326 $ 449,515 $ 796,508 $ 436,649 $ 957,799 $ 2,921,923 $ 8,308,534 Pinnacle Pass $ 179,223 $ 110,510 $ 66,592 $ 66,514 $ 29,783 $ 459,500 $ — $ 912,122 Total Pinnacle $ 179,223 $ 110,510 $ 66,592 $ 66,514 $ 29,783 $ 459,500 $ — $ 912,122 Bridge - Franchise Finance Pass $ 81,146 $ 19,251 $ 38,293 $ 34,483 $ 8,617 $ 6,799 $ — $ 188,589 Special mention — — — 5,432 2,168 — — 7,600 Substandard — 1,617 1,295 22,058 17,148 8,124 — 50,242 Doubtful — — 1,013 2,447 3,883 — — 7,343 Total Bridge - Franchise Finance $ 81,146 $ 20,868 $ 40,601 $ 64,420 $ 31,816 $ 14,923 $ — $ 253,774 Bridge - Equipment Finance Pass $ 27,386 $ 55,015 $ 16,488 $ 90,286 $ 33,264 $ 62,353 $ — $ 284,792 Substandard — — — 1,355 — — — 1,355 Total Bridge - Equipment Finance $ 27,386 $ 55,015 $ 16,488 $ 91,641 $ 33,264 $ 62,353 $ — $ 286,147 Mortgage Warehouse Lending Pass $ — $ — $ — $ — $ — $ — $ 524,740 $ 524,740 Total Mortgage Warehouse Lending $ — $ — $ — $ — $ — $ — $ 524,740 $ 524,740 At March 31, 2023 and December 31, 2022, the balance of revolving loans converted to term loans was immaterial. The following table presents criticized and classified commercial loans at the dates indicated (in thousands): March 31, 2023 December 31, 2022 Special mention $ 101,781 $ 51,433 Substandard - accruing 596,054 605,965 Substandard - non-accruing 82,840 75,125 Doubtful 7,699 7,990 Total $ 788,374 $ 740,513 Past Due and Non-Accrual Loans: The following table presents an aging of loans at the dates indicated (in thousands): March 31, 2023 December 31, 2022 Current 30 - 59 60 - 89 90 Days or Total Current 30 - 59 60 - 89 90 Days or Total 1-4 single family residential $ 7,069,078 $ 44,339 $ 4,761 $ 15,437 $ 7,133,615 $ 7,066,758 $ 43,016 $ 4,076 $ 14,984 $ 7,128,834 Government insured residential 969,134 167,880 81,457 437,658 1,656,129 1,025,523 159,461 94,294 492,602 1,771,880 CRE 5,657,401 2,723 — 11,576 5,671,700 5,680,829 4,328 4,773 10,027 5,699,957 C&I 8,433,706 19,573 2,570 25,200 8,481,049 8,280,321 2,508 1,028 24,677 8,308,534 Pinnacle 919,584 — — — 919,584 912,122 — — — 912,122 Bridge - franchise finance 236,063 1,094 — 2,048 239,205 243,574 1,321 — 8,879 253,774 Bridge - equipment finance 266,715 — — — 266,715 286,147 — — — 286,147 Mortgage warehouse lending 524,897 — — — 524,897 524,740 — — — 524,740 $ 24,076,578 $ 235,609 $ 88,788 $ 491,919 $ 24,892,894 $ 24,020,014 $ 210,634 $ 104,171 $ 551,169 $ 24,885,988 Included in the table above is the guaranteed portion of SBA loans past due by 90 days or more totaling $32.9 million and $30.8 million at March 31, 2023 and December 31, 2022, respectively. Loans contractually delinquent by 90 days or more and still accruing totaled $439 million and $494 million at March 31, 2023 and December 31, 2022, respectively, substantially all of which were government insured residential loans. These loans are government insured pool buyout loans, which the Company buys out of GNMA securitizations upon default. The following table presents information about loans on non-accrual status at the dates indicated (in thousands): March 31, 2023 December 31, 2022 Amortized Cost Amortized Cost With No Related Allowance Amortized Cost Amortized Cost With No Related Allowance 1-4 single family residential $ 23,102 $ — $ 21,311 $ — CRE 17,137 2,860 22,352 6,911 C&I 67,245 14,652 47,473 15,642 Bridge - franchise finance 6,157 2,479 13,290 1,668 $ 113,641 $ 19,991 $ 104,426 $ 24,221 Included in the table above is the guaranteed portion of non-accrual SBA loans totaling $36.9 million and $40.3 million at March 31, 2023 and December 31, 2022, respectively. The amount of interest income recognized on non-accrual loans was insignificant for the three months ended March 31, 2023 and 2022. The amount of additional interest income that would have been recognized on non-accrual loans had they performed in accordance with their contractual terms was approximately $1.9 million and $1.3 million for the three months ended March 31, 2023 and 2022, respectively. Collateral dependent loans: The following table presents the amortized cost basis of collateral dependent loans at the dates indicated (in thousands): March 31, 2023 December 31, 2022 Amortized Cost Extent to Which Secured by Collateral Amortized Cost Extent to Which Secured by Collateral 1-4 single family residential $ — $ — $ 730 $ 730 Commercial: CRE 14,990 14,527 19,486 18,353 C&I 22,184 21,470 26,404 25,344 Bridge - franchise finance 4,808 3,560 11,445 3,729 Total commercial 41,982 39,557 57,335 47,426 $ 41,982 $ 39,557 $ 58,065 $ 48,156 Collateral for the CRE loan class generally consists of commercial real estate, or for certain construction loans, residential real estate. Collateral for C&I loans generally consists of equipment, accounts receivable, inventory and other business assets. Bridge franchise finance loans may be collateralized by franchise value or by equipment. Residential loans are collateralized by residential real estate. There were no significant changes to the extent to which collateral secures collateral dependent loans during the three months ended March 31, 2023. Foreclosure of residential real estate The recorded investment in residential loans in the process of foreclosure was $382 million, of which $369 million was government insured, at March 31, 2023 and $413 million, of which $400 million was government insured, at December 31, 2022. The carrying amount of foreclosed residential real estate included in other assets in the accompanying consolidated balance sheet was insignificant at March 31, 2023 and December 31, 2022. Loan Modifications The following table summarizes loans that were modified for borrowers experiencing financial difficulty, by type of modification, during the period indicated (dollars in thousands): Three Months Ended March 31, 2023 Interest Rate Reduction Term Extension Combination - Interest Rate Reduction and Term Extension Total % (1) Total % (1) Total % (1) Total 1-4 single family residential $ 766 — % $ — — % $ — — % $ 766 Government insured residential 109 — % 36,920 2 % 2,312 — % 39,341 C&I — — % 4,918 — % — — % 4,918 $ 875 $ 41,838 $ 2,312 $ 45,025 (1) Represents percentage of loans receivable in each category. The following table summarizes the financial effect of the modifications made to borrowers experiencing difficulty, during the periods indicated: Financial Effect Interest Rate Reduction: 1-4 single family residential Reduced weighted average contractual interest rate from 3.8% to 3.1%. Government insured residential Reduced weighted average contractual interest rate from 4.8% to 3.8%. Term Extension: Residential Added a weighted average 9.6 years to the term of the modified loans. C&I Added a weighted average 0.7 years to the term of the modified loans. Combination - Interest Rate Reduction and Term Extension: Government insured residential Reduced weighted average contractual interest rate from 5.8% to 4.9% and added a weighted average 6.9 years to the term of the modified loans. The following table presents the aging at March 31, 2023, of loans that were modified since January 1, 2023, the date of adoption of ASU 2022-02 (in thousands): Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total 1-4 single family residential $ 766 $ — $ — $ — $ 766 Government insured residential 22,346 11,083 4,683 1,229 39,341 C&I 4,918 — — — 4,918 $ 28,030 $ 11,083 $ 4,683 $ 1,229 $ 45,025 The following table summarizes loans that were modified since January 1, 2023, the date of adoption of ASU 2022-02 and subsequently defaulted, during the period indicated (in thousands): Three Months Ended March 31, 2023 Interest Rate Reduction Term Extension Combination - Interest Rate Reduction and Term Extension Total Government insured residential $ 109 $ 5,070 $ 733 $ 5,912 Disclosures Prescribed by Legacy GAAP (Before Adoption of ASU 2022-02) for Prior Periods The following table summarizes loans that were modified in TDRs during the periods indicated, as well as loans modified during the twelve months preceding March 31, 2022 that experienced payment defaults during the periods indicated (dollars in thousands): Three Months Ended March 31, 2022 Loans Modified in TDRs TDRs Experiencing Payment Number of Amortized Cost Number of Amortized Cost 1-4 single family residential 4 $ 1,992 — $ — Government insured residential 390 63,539 125 21,391 C&I 8 15,219 — — 402 $ 80,750 125 $ 21,391 TDRs during the three months ended March 31, 2022 generally included interest rate reductions and extensions of maturity. Included in TDRs are residential loans to borrowers who have not reaffirmed their debt discharged in Chapter 7 bankruptcy. The total amount of such loans is not material.

Income Taxes

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Note 5 Income TaxesThe Company’s effective income tax rate was 26.4% and 24.4% for the three months ended March 31, 2023 and 2022, respectively. The effective income tax rates differed from the statutory federal income tax rate of 21% due primarily to the impact of state income taxes, partially offset by the benefit of income not subject to federal tax

Derivatives and Hedging Activit

Derivatives and Hedging Activities	3 Months Ended
Derivatives and Hedging Activities	Mar. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	Derivative Financial Instruments Derivatives designated as hedging instruments The Company has entered into interest rate swaps, caps and collars designated as cash flow hedges with the objective of limiting the variability of interest payment cash flows. The Company has also entered into interest rate swaps designated as fair value hedges designed to hedge changes in the fair value of outstanding fixed rate instruments caused by fluctuations in the benchmark interest rate. Changes in fair value of derivative instruments designated as cash flow hedges are reported in accumulated other comprehensive income. Changes in the fair value of derivative instruments designated as fair value hedges are recognized in earnings, as is the offsetting gain or loss on the hedged item. The following table summarizes the Company's derivatives designated as hedging instruments as of the dates indicated (in thousands): March 31, 2023 December 31, 2022 Notional Amount Fair Value (1) Notional Amount Fair Value (1) Asset Liability Asset Liability Derivatives designated as cash flow hedges: Interest rate swaps $ 1,750,000 $ 152 $ — $ 1,970,000 $ 941 $ (1,514) Interest rate caps purchased, indexed to Fed Funds effective rate 200,000 13,583 — 200,000 15,673 — Interest rate collar, indexed to 1-month SOFR (2) 125,000 90 — 125,000 — (203) Derivatives designated as fair value hedges: Pay-fixed interest rate swaps 100,000 — — 100,000 — — $ 2,175,000 $ 13,825 $ — $ 2,395,000 $ 16,614 $ (1,717) (1) The fair values of derivatives are included in other assets or other liabilities in the consolidated balance sheets. (2) The interest rate collar consists of a combination of zero-premium interest rate options. The Company sold a pay-variable cap with a strike price of 5.58%; sold a 0% floor; and purchased a receive-variable floor with a strike price of 1.50%. Derivatives designated as cash flow hedges The following table provides information about the amount of gain (loss) related to derivatives designated as cash flow hedges reclassified from AOCI into interest expense for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Location of gain (loss) reclassified from AOCI into income: Interest expense on borrowings $ 7,497 $ (4,710) Interest expense on deposits 5,049 (722) Interest income on loans (392) — $ 12,154 $ (5,432) During the three months ended March 31, 2023 and 2022, no derivative positions designated as cash flow hedges were discontinued and none of the gains and losses reported in AOCI were reclassified into earnings as a result of the discontinuance of cash flow hedges or because of the early extinguishment of debt. As of March 31, 2023, the amount of net gain expected to be reclassified from AOCI into earnings during the next twelve months was $37.1 million. See Note 7 to the consolidated financial statements for additional information about the reclassification adjustments from AOCI into earnings. Derivatives designated as fair value hedges The amount of gain (loss) related to derivatives designated as fair value hedges recognized in earnings was insignificant for the three months ended March 31, 2023 and 2022. The following table provides information about the hedged items related to derivatives designated as fair value hedges at the date indicated (in thousands): March 31, 2023 Location in Consolidated Balance Sheets Contractual balance outstanding of hedged item (1) $ 100,000 Loans Cumulative fair value hedging adjustments $ (3,114) Loans (1) This amount is included in the amortized cost basis of a closed portfolio of loans used to designate hedging relationships in a portfolio layer method hedge in which the hedged item is anticipated to be outstanding for the designated hedge period. At March 31, 2023, the amortized cost basis of the closed portfolio used in this hedging relationship was $1.0 billion. Derivatives not designated as hedging instruments The Company enters into interest rate derivative contracts with certain of its commercial borrowers to enable those borrowers to manage their exposure to interest rate fluctuations. To mitigate interest rate risk associated with these derivative contracts, the Company enters into offsetting derivative contract positions with primary dealers. These interest rate derivative contracts are not designated as hedging instruments; therefore, changes in the fair value of these derivatives are recognized immediately in earnings. For the three months ended March 31, 2023 and 2022, the impact on earnings related to changes in fair value of these derivatives was not material. The Company may be exposed to credit risk in the event of non-performance by the counterparties to its interest rate derivative agreements. The Company assesses the credit risk of its financial institution counterparties by monitoring publicly available credit rating and financial information. The Company manages dealer credit risk by entering into interest rate derivatives only with primary and highly rated counterparties, the use of ISDA master agreements, central clearing mechanisms and counterparty limits. The agreements contain bilateral collateral arrangements with the amount of collateral to be posted generally governed by the settlement value of outstanding swaps. The Company manages the risk of default by its commercial borrower counterparties through its normal loan underwriting and credit monitoring policies and procedures. The Company does not currently anticipate any significant losses from failure of interest rate derivative counterparties to honor their obligations The following table summarizes the Company's derivatives not designated as hedging instruments as of the dates indicated (in thousands): March 31, 2023 December 31, 2022 Notional Amount Fair Value (1) Notional Amount Fair Value (1) Asset Liability Asset Liability Derivatives not designated as hedges: Pay-fixed interest rate swaps $ 1,857,402 $ 62,302 $ (5,155) $ 1,916,719 $ 67,942 $ (2,195) Pay-variable interest rate swaps 1,857,402 5,249 (92,488) 1,916,719 2,195 (120,320) Interest rate caps purchased 42,920 1,830 — 42,920 1,988 — Interest rate caps sold 42,920 — (1,830) 42,920 — (1,988) $ 3,800,644 $ 69,381 $ (99,473) $ 3,919,278 $ 72,125 $ (124,503) (1) Fair value asset and liability derivatives are included in other assets and other liabilities, respectively in the consolidation balance sheets. Some of the Company’s ISDA master agreements with financial institution counterparties contain provisions that permit either counterparty to terminate the agreements and require settlement in the event that regulatory capital ratios fall below certain designated thresholds, upon the initiation of other defined regulatory actions or upon suspension or withdrawal of the Bank’s credit rating. Currently, there are no circumstances that would trigger these provisions of the agreements. Master netting agreements The Company does not offset assets and liabilities under master netting agreements for financial reporting purposes. Information on interest rate swaps and caps subject to these agreements is as follows at the dates indicated (in thousands): March 31, 2023 Gross Amounts Offset in Balance Net Amounts Presented in Gross Amounts Not Offset in Gross Amounts Derivative Collateral Net Amount Derivative assets $ 77,957 $ — $ 77,957 $ (5,155) $ (72,032) $ 770 Derivative liabilities (5,155) — (5,155) 5,155 — — $ 72,802 $ — $ 72,802 $ — $ (72,032) $ 770 December 31, 2022 Gross Amounts Offset in Balance Net Amounts Presented in Gross Amounts Not Offset in Gross Amounts Derivative Collateral Net Amount Derivative assets $ 86,544 $ — $ 86,544 $ (3,912) $ (79,447) $ 3,185 Derivative liabilities (3,912) — (3,912) 3,912 — — $ 82,632 $ — $ 82,632 $ — $ (79,447) $ 3,185 The difference between the amounts reported for interest rate swaps subject to master netting agreements and the total fair value of interest rate contract derivative financial instruments reported in the consolidated balance sheets is related to interest rate derivative contracts not subject to master netting agreements.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
Stockholders' Equity	Mar. 31, 2023
Equity [Abstract]
Stockholders' Equity	Note 7 Stockholders’ Equity Accumulated Other Comprehensive Income Changes in other comprehensive income are summarized as follows for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Before Tax Tax Effect Net of Tax Before Tax Tax Effect Net of Tax Unrealized gains (losses) on investment securities available for sale: Net unrealized holding gains (losses) arising during the period $ 101,265 $ (26,329) $ 74,936 $ (236,434) $ 61,454 $ (174,980) Amounts reclassified to gain on investment securities available for sale, net (752) 196 (556) (2,673) 695 (1,978) Net change in unrealized gains (losses) on investment securities available for sale 100,513 (26,133) 74,380 (239,107) 62,149 (176,958) Unrealized gains (losses) on derivative instruments: Net unrealized holding gains (losses) arising during the period (2,926) 761 (2,165) 41,963 (10,784) 31,179 Amounts reclassified to interest expense on deposits (5,049) 1,313 (3,736) 722 (188) 534 Amounts reclassified to interest expense on borrowings (7,497) 1,949 (5,548) 4,710 (1,224) 3,486 Amounts reclassified to interest income on loans 392 (102) 290 — — — Net change in unrealized gains (losses) on derivative instruments (15,080) 3,921 (11,159) 47,395 (12,196) 35,199 Other comprehensive income (loss) $ 85,433 $ (22,212) $ 63,221 $ (191,712) $ 49,953 $ (141,759) The categories of AOCI and changes therein are presented below for the periods indicated (in thousands): Unrealized Gain (Loss) on Unrealized Gain (Loss) Total Balance at December 31, 2022 $ (498,911) $ 61,006 $ (437,905) Other comprehensive income (loss) 74,380 (11,159) 63,221 Balance at March 31, 2023 $ (424,531) $ 49,847 $ (374,684) Balance at December 31, 2021 $ 2,859 $ (18,799) $ (15,940) Other comprehensive income (loss) (176,958) 35,199 (141,759) Balance at March 31, 2022 $ (174,099) $ 16,400 $ (157,699)

Fair Value Measurements

Fair Value Measurements	3 Months Ended
Fair Value Measurements	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 8 Fair Value Measurements Assets and liabilities measured at fair value on a recurring basis The following is a description of the methodologies used to estimate the fair values of assets and liabilities measured at fair value on a recurring basis and the level within the fair value hierarchy in which those measurements are typically classified. Investment securities available for sale and marketable equity securities —Fair value measurements are based on quoted prices in active markets when available; these measurements are classified within level 1 of the fair value hierarchy. These securities typically include U.S. Treasury securities and certain preferred stocks. If quoted prices in active markets are not available, fair values are estimated using quoted prices of securities with similar characteristics, quoted prices of identical securities in less active markets, discounted cash flow techniques, or matrix pricing models. These securities are generally classified within level 2 of the fair value hierarchy and include U.S. Government agency securities, U.S. Government agency and sponsored enterprise MBS, preferred stock investments for which level 1 valuations are not available, non-mortgage asset-backed securities, single family real estate-backed securities, private label residential MBS and CMOs, private label commercial MBS, collateralized loan obligations and state and municipal obligations. Pricing of these securities is generally primarily spread driven. Observable inputs that may impact the valuation of these securities include benchmark yield curves, credit spreads, reported trades, dealer quotes, bids, issuer spreads, current rating, historical constant prepayment rates, historical voluntary prepayment rates, structural and waterfall features of individual securities, published collateral data, and for certain securities, historical constant default rates and default severities. The Company uses third-party pricing services in determining fair value measurements for investment securities. To obtain an understanding of the methodologies and assumptions used, management reviews written documentation provided by the pricing services, conducts interviews with valuation desk personnel and reviews model results and detailed assumptions used to value selected securities as considered necessary. Management has established a robust price challenge process that includes a review by the treasury front office of all prices provided on a monthly basis. Any price evidencing unexpected month over month fluctuations or deviations from expectations is challenged. If considered necessary to resolve any discrepancies, a price will be obtained from an additional independent valuation source. The Company does not typically adjust the prices provided, other than through this established challenge process. The results of price challenges are subject to review by executive management. Any price discrepancies are resolved based on careful consideration of the assumptions and inputs employed by each of the pricing sources. Derivative financial instruments —Fair values of interest rate swaps, caps and collars are determined using widely accepted discounted cash flow modeling techniques. These discounted cash flow models use projections of future cash payments and receipts that are discounted at mid-market rates. Observable inputs that may impact the valuation of these instruments include benchmark swap rates and benchmark forward yield curves. These fair value measurements are generally classified within level 2 of the fair value hierarchy. The following tables present assets and liabilities measured at fair value on a recurring basis at the dates indicated (in thousands): March 31, 2023 Level 1 Level 2 Total Investment securities available for sale: U.S. Treasury securities $ 118,383 $ — $ 118,383 U.S. Government agency and sponsored enterprise residential MBS — 1,980,533 1,980,533 U.S. Government agency and sponsored enterprise commercial MBS — 518,382 518,382 Private label residential MBS and CMOs — 2,525,482 2,525,482 Private label commercial MBS — 2,434,819 2,434,819 Single family real estate-backed securities — 448,501 448,501 Collateralized loan obligations — 1,106,078 1,106,078 Non-mortgage asset-backed securities — 94,099 94,099 State and municipal obligations — 103,950 103,950 SBA securities — 124,603 124,603 Marketable equity securities 68,769 — 68,769 Derivative assets — 83,206 83,206 Total assets at fair value $ 187,152 $ 9,419,653 $ 9,606,805 Derivative liabilities $ — $ (99,473) $ (99,473) Total liabilities at fair value $ — $ (99,473) $ (99,473) December 31, 2022 Level 1 Level 2 Total Investment securities available for sale: U.S. Treasury securities $ 135,841 $ — $ 135,841 U.S. Government agency and sponsored enterprise residential MBS — 1,983,168 1,983,168 U.S. Government agency and sponsored enterprise commercial MBS — 525,094 525,094 Private label residential MBS and CMOs — 2,530,663 2,530,663 Private label commercial MBS — 2,524,354 2,524,354 Single family real estate-backed securities — 470,441 470,441 Collateralized loan obligations — 1,136,463 1,136,463 Non-mortgage asset-backed securities — 95,976 95,976 State and municipal obligations — 116,661 116,661 SBA securities — 135,782 135,782 Marketable equity securities 90,884 — 90,884 Derivative assets — 88,739 88,739 Total assets at fair value $ 226,725 $ 9,607,341 $ 9,834,066 Derivative liabilities $ — $ (126,220) $ (126,220) Total liabilities at fair value $ — $ (126,220) $ (126,220) Assets and liabilities measured at fair value on a non-recurring basi s Following is a description of the methodologies used to estimate the fair values of assets and liabilities that may be measured at fair value on a non-recurring basis, and the level within the fair value hierarchy in which those measurements are typically classified. Collateral dependent loans and OREO —The carrying amount of collateral dependent loans is typically based on the fair value of the underlying collateral, which may be real estate, enterprise value or other business assets, less estimated costs to sell when repayment is expected to come from the sale of the collateral. The carrying value of OREO is initially measured based on the fair value of the real estate acquired in foreclosure and subsequently adjusted to the lower of cost or estimated fair value, less estimated cost to sell. Fair values of real estate collateral and OREO are typically based on third-party real estate appraisals which utilize market and income approaches to valuation incorporating both observable and unobservable inputs. Fair value measurements related to collateral dependent loans and OREO are generally classified within level 3 of the fair value hierarchy. The following table presents the net carrying value of assets classified within level 3 of the fair value hierarchy at the dates indicated, for which non-recurring changes in fair value were recorded during the period then ended (in thousands): March 31, 2023 December 31, 2022 Collateral dependent loans $ 25,320 $ 31,789 OREO — 693 $ 25,320 $ 32,482 The following table presents the carrying value and fair value of financial instruments and the level within the fair value hierarchy in which those measurements are classified at the dates indicated (dollars in thousands): March 31, 2023 December 31, 2022 Level Carrying Value Fair Value Carrying Value Fair Value Assets: Cash and cash equivalents 1 $ 903,998 $ 903,998 $ 572,647 $ 572,647 Investment securities 1/2 $ 9,533,599 $ 9,533,448 $ 9,755,327 $ 9,755,190 Non-marketable equity securities 2 $ 384,697 $ 384,697 $ 294,172 $ 294,172 Loans, net 3 $ 24,734,102 $ 23,595,163 $ 24,738,042 $ 23,342,950 Derivative assets 2 $ 83,206 $ 83,206 $ 88,739 $ 88,739 Liabilities: Demand, savings and money market deposits 2 $ 20,472,921 $ 20,472,921 $ 23,241,256 $ 23,241,256 Time deposits 2 $ 5,249,977 $ 5,198,220 $ 4,268,078 $ 4,231,167 Federal funds purchased 2 $ — $ — $ 190,000 $ 190,000 FHLB advances 2 $ 7,550,000 $ 7,545,355 $ 5,420,000 $ 5,419,588 Notes and other borrowings 2 $ 720,787 $ 642,239 $ 720,923 $ 698,359 Derivative liabilities 2 $ 99,473 $ 99,473 $ 126,220 $ 126,220

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 9 Commitments and Contingencies The Company issues off-balance sheet financial instruments to meet the financing needs of its customers. These financial instruments include commitments to fund loans, unfunded commitments under existing lines of credit, and commercial and standby letters of credit. These commitments expose the Company to varying degrees of credit and market risk which are essentially the same as those involved in extending loans to customers, and are subject to the same credit policies used in underwriting loans. Collateral may be obtained based on the Company’s credit evaluation of the counterparty. The Company’s maximum exposure to credit loss is represented by the contractual amount of these commitments. Commitments to fund loans These are agreements to lend funds to customers as long as there is no violation of any condition established in the contract. Commitments to fund loans generally have fixed expiration dates or other termination clauses and may require payment of a fee. Many of these commitments are expected to expire without being funded and, therefore, the total commitment amounts do not necessarily represent future liquidity requirements. Unfunded commitments under lines of credit Unfunded commitments under lines of credit include commercial, commercial real estate and an insignificant amount of consumer lines of credit to existing customers, for many of which additional extensions of credit are subject to borrowing base requirements. Some of these commitments may mature without being fully funded, so may not necessarily represent future liquidity requirements. Commercial and standby letters of credit Letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. These letters of credit are primarily issued to support trade transactions or guarantee arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. Total lending related commitments outstanding at March 31, 2023 were as follows (in thousands): Commitments to fund loans $ 478,149 Unfunded commitments under lines of credit 5,928,956 Commercial and standby letters of credit 161,092 $ 6,568,197 Legal Proceedings The Company is involved as plaintiff or defendant in various legal actions arising in the normal course of business. In the opinion of management, based upon advice of legal counsel, the likelihood is remote that the impact of these proceedings, either individually or in the aggregate, would be material to the Company’s consolidated financial position, results of operations or cash flows.

Deposits

Deposits	3 Months Ended
Deposits	Mar. 31, 2023
Brokers and Dealers [Abstract]
Deposits	Note 10 Deposits The following table presents average balances and weighted average rates paid on deposits for the periods indicated (dollars in thousands): Three Months Ended March 31, 2023 2022 Average Average Average Average Demand deposits: Non-interest bearing $ 7,458,221 — % $ 9,047,864 — % Interest bearing 2,283,505 1.87 % 3,078,037 0.18 % Savings and money market 12,145,922 3.06 % 13,401,332 0.21 % Time 4,526,480 2.81 % 3,319,585 0.44 % $ 26,414,128 2.05 % $ 28,846,818 0.17 % Time deposit accounts with balances greater than $250,000 totaled $819 million and $730 million at March 31, 2023 and December 31, 2022, respectively. The following table presents maturities of time deposits as of March 31, 2023 (in thousands): Maturing in: 2023 $ 3,534,369 2024 1,306,729 2025 97,271 2026 310,548 2027 1,032 Thereafter 28 $ 5,249,977 Included in deposits at March 31, 2023 are public funds deposits of $3.6 billion and brokered deposits of $5.2 billion. Interest expense on deposits for the periods indicated was as follows (in thousands): Three Months Ended March 31, 2023 2022 Interest bearing demand $ 10,545 $ 1,364 Savings and money market 91,724 6,931 Time 31,361 3,562 $ 133,630 $ 11,857 Certain of our non-interest bearing demand deposit accounts participate in various customer rebate programs. During the three months ended March 31, 2023 and 2022, costs related to these programs totaled $8.5 million and $1.6 million, respectively. These expenses are included in "other non-interest expense" in the accompanying consolidated statements of income.

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounting Estimates	Accounting Estimates In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses and disclosures of contingent assets and liabilities. Actual results could differ significantly from these estimates.
New Accounting Pronouncements Adopted During the Nine Months Ended September 30, 2022 and Accounting Pronouncements Not Yet Adopted	New Accounting Pronouncements Adopted During the Three Months Ended March 31, 2023 ASU No. 2022-02, Financial Instruments—Credit Losses (Topic 326). This ASU eliminated the accounting guidance for TDRs by creditors in Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors. The ASU enhanced disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty, updated certain requirements related to accounting for credit losses under ASC 326 and required disclosure of current-period gross charge-offs of financing receivables by year of origination. The Company adopted this ASU in the first quarter of 2023, prospectively, except with respect to the recognition and measurement of TDRs, for which the modified retrospective transition method was applied. The Company recorded a reduction to the ACL of $1.8 million and a cumulative-effect adjustment, net of tax, to retained earnings of $1.3 million on January 1, 2023. Accounting Pronouncements Not Yet Adopted ASU No. 2023-02— Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures using the Proportional Amortization Method (A Consensus of the Emerging Issues Task Force).

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	3 Months Ended
Earnings Per Common Share (Tables)	Mar. 31, 2023
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Common Share	The computation of basic and diluted earnings per common share is presented below for the periods indicated (in thousands, except share and per share data): Three Months Ended March 31, c 2023 2022 Basic earnings per common share: Numerator: Net income $ 52,882 $ 67,150 Distributed and undistributed earnings allocated to participating securities (798) (929) Income allocated to common stockholders for basic earnings per common share $ 52,084 $ 66,221 Denominator: Weighted average common shares outstanding 74,755,002 84,983,873 Less average unvested stock awards (1,193,881) (1,211,807) Weighted average shares for basic earnings per common share 73,561,121 83,772,066 Basic earnings per common share $ 0.71 $ 0.79 Diluted earnings per common share: Numerator: Income allocated to common stockholders for basic earnings per common share $ 52,084 $ 66,221 Adjustment for earnings reallocated from participating securities 3 1 Income used in calculating diluted earnings per common share $ 52,087 $ 66,222 Denominator: Weighted average shares for basic earnings per common share 73,561,121 83,772,066 Dilutive effect of certain share-based awards 447,581 137,704 Weighted average shares for diluted earnings per common share 74,008,702 83,909,770 Diluted earnings per common share $ 0.70 $ 0.79

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
Investment Securities (Tables)	Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities Reconciliation	Investment securities include investment securities available for sale, marketable equity securities, and investment securities held to maturity. The investment securities portfolio consisted of the following at the dates indicated (in thousands): March 31, 2023 Amortized Cost Gross Unrealized Carrying Value (1) Gains Losses Investment securities available for sale: U.S. Treasury securities $ 129,140 $ 290 $ (11,047) $ 118,383 U.S. Government agency and sponsored enterprise residential MBS 2,028,070 1,528 (49,065) 1,980,533 U.S. Government agency and sponsored enterprise commercial MBS 584,464 140 (66,222) 518,382 Private label residential MBS and CMOs 2,825,107 807 (300,432) 2,525,482 Private label commercial MBS 2,533,319 887 (99,387) 2,434,819 Single family real estate-backed securities 468,225 — (19,724) 448,501 Collateralized loan obligations 1,126,532 416 (20,870) 1,106,078 Non-mortgage asset-backed securities 98,812 — (4,713) 94,099 State and municipal obligations 106,897 926 (3,873) 103,950 SBA securities 127,959 310 (3,666) 124,603 10,028,525 $ 5,304 $ (578,999) 9,454,830 Investment securities held to maturity 10,000 10,000 $ 10,038,525 9,464,830 Marketable equity securities 68,769 $ 9,533,599 December 31, 2022 Amortized Cost Gross Unrealized Carrying Value (1) Gains Losses Investment securities available for sale: U.S. Treasury securities $ 148,956 $ 63 $ (13,178) $ 135,841 U.S. Government agency and sponsored enterprise residential MBS 2,036,693 1,334 (54,859) 1,983,168 U.S. Government agency and sponsored enterprise commercial MBS 600,517 — (75,423) 525,094 Private label residential MBS and CMOs 2,864,589 54 (333,980) 2,530,663 Private label commercial MBS 2,645,168 176 (120,990) 2,524,354 Single family real estate-backed securities 502,194 — (31,753) 470,441 Collateralized loan obligations 1,166,838 151 (30,526) 1,136,463 Non-mortgage asset-backed securities 102,194 — (6,218) 95,976 State and municipal obligations 122,181 695 (6,215) 116,661 SBA securities 139,320 381 (3,919) 135,782 10,328,650 $ 2,854 $ (677,061) 9,654,443 Investment securities held to maturity 10,000 10,000 $ 10,338,650 9,664,443 Marketable equity securities 90,884 $ 9,755,327 (1) At fair value except for securities held to maturity.
Investments Classified by Contractual Maturity Date	At March 31, 2023, contractual maturities of investment securities available for sale, adjusted for anticipated prepayments when applicable, were as follows (in thousands): Amortized Cost Fair Value Due in one year or less $ 1,399,602 $ 1,345,012 Due after one year through five years 5,563,191 5,343,463 Due after five years through ten years 1,811,023 1,648,170 Due after ten years 1,254,709 1,118,185 $ 10,028,525 $ 9,454,830
Gain on Investment Securities, net	The following table provides information about gains and losses on investment securities for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Gross realized gains on investment securities AFS $ 772 $ 2,750 Gross realized losses on investment securities AFS (20) (77) Net realized gain 752 2,673 Net losses on marketable equity securities recognized in earnings (13,301) (10,541) Loss on investment securities, net $ (12,549) $ (7,868)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	The following tables present the aggregate fair value and the aggregate amount by which amortized cost exceeded fair value for investment securities available for sale in unrealized loss positions aggregated by investment category and length of time that individual securities had been in continuous unrealized loss positions at the dates indicated (in thousands): March 31, 2023 Less than 12 Months 12 Months or Greater Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. Treasury securities $ — $ — $ 98,433 $ (11,047) $ 98,433 $ (11,047) U.S. Government agency and sponsored enterprise residential MBS 450,166 (4,814) 1,426,663 (44,251) 1,876,829 (49,065) U.S. Government agency and sponsored enterprise commercial MBS 85,834 (2,507) 418,940 (63,715) 504,774 (66,222) Private label residential MBS and CMOs 132,246 (4,089) 2,283,623 (296,343) 2,415,869 (300,432) Private label commercial MBS 292,200 (5,388) 1,967,412 (93,999) 2,259,612 (99,387) Single family real estate-backed securities 69,334 (117) 379,167 (19,607) 448,501 (19,724) Collateralized loan obligations 191,045 (1,455) 862,512 (19,415) 1,053,557 (20,870) Non-mortgage asset-backed securities 8,184 (54) 85,915 (4,659) 94,099 (4,713) State and municipal obligations 6,352 (74) 27,842 (3,799) 34,194 (3,873) SBA securities 41,923 (567) 66,337 (3,099) 108,260 (3,666) $ 1,277,284 $ (19,065) $ 7,616,844 $ (559,934) $ 8,894,128 $ (578,999) December 31, 2022 Less than 12 Months 12 Months or Greater Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. Treasury securities $ 29,198 $ (495) $ 86,744 $ (12,683) $ 115,942 $ (13,178) U.S. Government agency and sponsored enterprise residential MBS 1,243,286 (26,789) 672,322 (28,070) 1,915,608 (54,859) U.S. Government agency and sponsored enterprise commercial MBS 236,102 (5,736) 288,992 (69,687) 525,094 (75,423) Private label residential MBS and CMOs 1,103,578 (93,480) 1,413,642 (240,500) 2,517,220 (333,980) Private label commercial MBS 1,191,969 (39,729) 1,223,223 (81,261) 2,415,192 (120,990) Single family real estate-backed securities 391,421 (22,293) 79,020 (9,460) 470,441 (31,753) Collateralized loan obligations 596,803 (14,020) 494,945 (16,506) 1,091,748 (30,526) Non-mortgage asset-backed securities 95,976 (6,218) — — 95,976 (6,218) State and municipal obligations 67,444 (6,154) 1,114 (61) 68,558 (6,215) SBA securities 42,900 (553) 74,291 (3,366) 117,191 (3,919) $ 4,998,677 $ (215,467) $ 4,334,293 $ (461,594) $ 9,332,970 $ (677,061)

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	3 Months Ended
Loans and Allowance for Credit Losses (Tables)	Mar. 31, 2023
Receivables [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable	Loans consisted of the following at the dates indicated (dollars in thousands): March 31, 2023 December 31, 2022 Total Percent of Total Total Percent of Total Residential: 1-4 single family residential $ 7,133,615 28.6 % $ 7,128,834 28.6 % Government insured residential 1,656,129 6.7 % 1,771,880 7.1 % $ 8,789,744 35.3 % $ 8,900,714 35.7 % Commercial: Non-owner occupied commercial real estate 5,346,895 21.5 % 5,405,597 21.7 % Construction and land 324,805 1.3 % 294,360 1.2 % Owner occupied commercial real estate 1,863,333 7.5 % 1,890,813 7.6 % Commercial and industrial 6,617,716 26.5 % 6,417,721 25.9 % Pinnacle 919,584 3.7 % 912,122 3.7 % Bridge - franchise finance 239,205 1.0 % 253,774 1.0 % Bridge - equipment finance 266,715 1.1 % 286,147 1.1 % Mortgage warehouse lending 524,897 2.1 % 524,740 2.1 % 16,103,150 64.7 % 15,985,274 64.3 % Total loans 24,892,894 100.0 % 24,885,988 100.0 % Allowance for credit losses (158,792) (147,946) Loans, net $ 24,734,102 $ 24,738,042 The following table presents the amortized cost basis of residential PCD loans and the related amount of non-credit discount, net of the related ACL, at the dates indicated (in thousands): March 31, 2023 December 31, 2022 UPB $ 93,051 $ 96,437 Non-credit discount (42,357) (44,354) Total amortized cost of PCD loans 50,694 52,083 ACL related to PCD loans (381) (409) PCD loans, net $ 50,313 $ 51,674
Accounts Receivable, Allowance for Credit Loss	The following table presents gross charge-offs during the three months ended March 31, 2023, by year of origination (in thousands): 2023 2022 2021 2020 2019 Prior to 2019 Revolving Loans Total CRE $ — $ — $ — $ — $ — $ 35 $ — $ 35 C&I — 64 24 — 265 935 309 1,597 Bridge - franchise finance — — — 33 2,409 3,825 — 6,267 $ — $ 64 $ 24 $ 33 $ 2,674 $ 4,795 $ 309 $ 7,899
Allowance for Credit Losses on Financing Receivables	Activity in the ACL is summarized below for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Residential Commercial Total Residential Commercial Total Beginning balance $ 11,741 $ 136,205 $ 147,946 $ 9,187 $ 117,270 $ 126,457 Impact of adoption of ASU 2022-02 (117) (1,677) (1,794) N/A N/A N/A Balance after adoption of ASU 2022-02 11,624 134,528 146,152 9,187 117,270 126,457 Provision (recovery) 170 17,425 17,595 (256) 7,702 7,446 Charge-offs — (7,899) (7,899) — (10,671) (10,671) Recoveries 3 2,941 2,944 26 2,185 2,211 Ending balance $ 11,797 $ 146,995 $ 158,792 $ 8,957 $ 116,486 $ 125,443 The following table presents the components of the provision for credit losses for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Amount related to funded portion of loans $ 17,595 $ 7,446 Amount related to off-balance sheet credit exposures 2,193 384 Total provision for credit losses $ 19,788 $ 7,830
Financing Receivable Credit Quality Indicators	Credit quality information Credit quality of loans held for investment is continuously monitored by dedicated residential credit risk management and commercial portfolio management functions. The Company also has a workout and recovery department that monitors the credit quality of criticized and classified loans and an independent internal credit review function. Credit quality indicators for residential loans Management considers delinquency status to be the most meaningful indicator of the credit quality of residential loans, other than government insured residential loans. Delinquency statistics are updated at least monthly. LTV and FICO scores are also important indicators of credit quality for 1-4 single family residential loans other than government insured loans. FICO scores are generally updated semi-annually, and were most recently updated in the first quarter of 2023. LTVs are typically at origination since we do not routinely update residential appraisals. Substantially all of the government insured residential loans are government insured buyout loans, which the Company buys out of GNMA securitizations upon default. For these loans, traditional measures of credit quality are not particularly relevant considering the guaranteed nature of the loans and the underlying business model. Factors that impact risk inherent in the residential portfolio segment include national and regional economic conditions such as levels of unemployment, wages and interest rates, as well as residential property values. 1-4 Single Family Residential credit exposure, excluding government insured residential loans, based on delinquency status: March 31, 2023 Amortized Cost By Origination Year 2023 2022 2021 2020 2019 Prior Total Current $ 117,258 $ 1,179,778 $ 3,111,081 $ 900,912 $ 312,977 $ 1,447,072 $ 7,069,078 30 - 59 Days Past Due — 16,570 16,841 3,801 1,363 5,764 44,339 60 - 89 Days Past Due — 732 418 — — 3,611 4,761 90 Days or More Past Due — 2,765 2,158 2,029 2,000 6,485 15,437 $ 117,258 $ 1,199,845 $ 3,130,498 $ 906,742 $ 316,340 $ 1,462,932 $ 7,133,615 December 31, 2022 Amortized Cost By Origination Year 2022 2021 2020 2019 2018 Prior Total Current $ 1,185,611 $ 3,149,299 $ 916,923 $ 316,023 $ 177,891 $ 1,321,011 $ 7,066,758 30 - 59 Days Past Due 12,752 16,432 3,266 2,953 1,854 5,759 43,016 60 - 89 Days Past Due 252 1,196 229 1,347 — 1,052 4,076 90 Days or More Past Due 2,589 2,158 2,173 360 3,069 4,635 14,984 $ 1,201,204 $ 3,169,085 $ 922,591 $ 320,683 $ 182,814 $ 1,332,457 $ 7,128,834 1-4 Single Family Residential credit exposure, excluding government insured residential loans, based on LTV: March 31, 2023 Amortized Cost By Origination Year LTV 2023 2022 2021 2020 2019 Prior Total Less than 61% $ 12,750 $ 280,999 $ 1,282,249 $ 344,679 $ 75,652 $ 491,970 $ 2,488,299 61% - 70% 23,708 296,695 848,469 228,400 78,531 348,041 1,823,844 71% - 80% 80,800 619,158 964,695 333,590 156,693 580,755 2,735,691 More than 80% — 2,993 35,085 73 5,464 42,166 85,781 $ 117,258 $ 1,199,845 $ 3,130,498 $ 906,742 $ 316,340 $ 1,462,932 $ 7,133,615 December 31, 2022 Amortized Cost By Origination Year LTV 2022 2021 2020 2019 2018 Prior Total Less than 61% $ 282,940 $ 1,301,279 $ 354,720 $ 76,404 $ 42,864 $ 472,090 $ 2,530,297 61% - 70% 295,206 857,008 231,732 80,383 49,047 310,649 1,824,025 71% - 80% 620,049 975,542 336,066 158,406 86,463 510,633 2,687,159 More than 80% 3,009 35,256 73 5,490 4,440 39,085 87,353 $ 1,201,204 $ 3,169,085 $ 922,591 $ 320,683 $ 182,814 $ 1,332,457 $ 7,128,834 1-4 Single Family Residential credit exposure, excluding government insured residential loans, based on FICO score: March 31, 2023 Amortized Cost By Origination Year FICO 2023 2022 2021 2020 2019 Prior Total 760 or greater $ 74,066 $ 809,442 $ 2,488,061 $ 712,689 $ 221,056 $ 995,139 $ 5,300,453 720 - 759 35,448 245,748 429,084 122,827 52,140 244,446 1,129,693 719 or less 7,744 144,655 213,353 71,226 43,144 223,347 703,469 $ 117,258 $ 1,199,845 $ 3,130,498 $ 906,742 $ 316,340 $ 1,462,932 $ 7,133,615 December 31, 2022 Amortized Cost By Origination Year FICO 2022 2021 2020 2019 2018 Prior Total 760 or greater $ 805,125 $ 2,513,045 $ 721,982 $ 212,574 $ 97,076 $ 944,783 $ 5,294,585 720 - 759 285,507 485,528 132,928 62,301 45,857 216,047 1,228,168 719 or less 110,572 170,512 67,681 45,808 39,881 171,627 606,081 $ 1,201,204 $ 3,169,085 $ 922,591 $ 320,683 $ 182,814 $ 1,332,457 $ 7,128,834 Credit quality indicators for commercial loans Factors that impact risk inherent in commercial portfolio segments include but are not limited to levels of economic activity, health of the national and regional economy, interest rates, industry trends, patterns of and trends in customer behavior that influence demand for our borrowers' products and services, and commercial real estate values. Internal risk ratings are considered the most meaningful indicator of credit quality for commercial loans. Internal risk ratings are generally indicative of the likelihood that a borrower will default, are a key factor influencing the level and nature of ongoing monitoring of loans and may impact the estimation of the ACL. Internal risk ratings are updated on a continuous basis. Generally, relationships with balances in excess of defined thresholds, ranging from $1 million to $3 million, are re-evaluated at least annually and more frequently if circumstances indicate that a change in risk rating may be warranted. The special mention rating is considered a transitional rating for loans exhibiting potential credit weaknesses that could result in deterioration of repayment prospects at some future date if not checked or corrected and that deserve management’s close attention. These borrowers may exhibit declining cash flows or revenues or increasing leverage. Loans with well-defined credit weaknesses that may result in a loss if the deficiencies are not corrected are assigned a risk rating of substandard. These borrowers may exhibit payment defaults, inadequate cash flows from current operations, operating losses, increasing balance sheet leverage, project cost overruns, unreasonable construction delays, exhausted interest reserves, declining collateral values, frequent overdrafts or past due real estate taxes. Loans with weaknesses so severe that collection in full is highly questionable or improbable, but because of certain reasonably specific pending factors have not been charged off, are assigned an internal risk rating of doubtful. Commercial credit exposure based on internal risk rating: March 31, 2023 Amortized Cost By Origination Year Revolving Loans 2023 2022 2021 2020 2019 Prior Total CRE Pass $ 66,399 $ 1,248,325 $ 732,160 $ 546,742 $ 1,106,358 $ 1,363,097 $ 197,073 $ 5,260,154 Special mention — 42,950 2,150 — 17,913 411 — 63,424 Substandard — 12,263 1,355 19,008 119,227 196,269 — 348,122 Total CRE $ 66,399 $ 1,303,538 $ 735,665 $ 565,750 $ 1,243,498 $ 1,559,777 $ 197,073 $ 5,671,700 C&I Pass $ 320,398 $ 1,768,713 $ 762,133 $ 428,383 $ 605,736 $ 1,203,423 $ 3,071,337 $ 8,160,123 Special mention 38 2,955 433 — 2,534 2,330 22,864 31,154 Substandard 9 54,757 11,705 18,988 53,187 114,667 28,760 282,073 Doubtful — — — — 6,985 714 — 7,699 Total C&I $ 320,445 $ 1,826,425 $ 774,271 $ 447,371 $ 668,442 $ 1,321,134 $ 3,122,961 $ 8,481,049 Pinnacle Pass $ 42,815 $ 170,252 $ 107,137 $ 62,406 $ 62,354 $ 474,620 $ — $ 919,584 Total Pinnacle $ 42,815 $ 170,252 $ 107,137 $ 62,406 $ 62,354 $ 474,620 $ — $ 919,584 Bridge - Franchise Finance Pass $ 2,389 $ 28,106 $ 38,134 $ 36,376 $ 26,549 $ 52,902 $ — $ 184,456 Special mention — — — — 5,120 2,083 — 7,203 Substandard — 281 1,499 1,936 21,548 22,282 — 47,546 Total Bridge - Franchise Finance $ 2,389 $ 28,387 $ 39,633 $ 38,312 $ 53,217 $ 77,267 $ — $ 239,205 Bridge - Equipment Finance Pass $ — $ 26,280 $ 51,539 $ 15,922 $ 83,887 $ 87,934 $ — $ 265,562 Substandard — — — — 1,153 — — 1,153 Total Bridge - Equipment Finance $ — $ 26,280 $ 51,539 $ 15,922 $ 85,040 $ 87,934 $ — $ 266,715 Mortgage Warehouse Lending Pass $ — $ — $ — $ — $ — $ — $ 524,897 $ 524,897 Total Mortgage Warehouse Lending $ — $ — $ — $ — $ — $ — $ 524,897 $ 524,897 December 31, 2022 Amortized Cost By Origination Year Revolving Loans 2022 2021 2020 2019 2018 Prior Total CRE Pass $ 1,256,300 $ 758,025 $ 550,133 $ 1,138,113 $ 512,125 $ 932,030 $ 196,963 $ 5,343,689 Special mention — — — 18,006 — 709 — 18,715 Substandard 12,332 1,355 20,103 98,438 56,974 148,351 — 337,553 Total CRE $ 1,268,632 $ 759,380 $ 570,236 $ 1,254,557 $ 569,099 $ 1,081,090 $ 196,963 $ 5,699,957 C&I Pass $ 1,880,853 $ 825,410 $ 445,988 $ 689,003 $ 416,287 $ 832,952 $ 2,900,336 $ 7,990,829 Special mention 63 — 208 3,880 — 20,657 310 25,118 Substandard 25,898 13,916 3,319 103,625 19,715 104,190 21,277 291,940 Doubtful — — — — 647 — — 647 Total C&I $ 1,906,814 $ 839,326 $ 449,515 $ 796,508 $ 436,649 $ 957,799 $ 2,921,923 $ 8,308,534 Pinnacle Pass $ 179,223 $ 110,510 $ 66,592 $ 66,514 $ 29,783 $ 459,500 $ — $ 912,122 Total Pinnacle $ 179,223 $ 110,510 $ 66,592 $ 66,514 $ 29,783 $ 459,500 $ — $ 912,122 Bridge - Franchise Finance Pass $ 81,146 $ 19,251 $ 38,293 $ 34,483 $ 8,617 $ 6,799 $ — $ 188,589 Special mention — — — 5,432 2,168 — — 7,600 Substandard — 1,617 1,295 22,058 17,148 8,124 — 50,242 Doubtful — — 1,013 2,447 3,883 — — 7,343 Total Bridge - Franchise Finance $ 81,146 $ 20,868 $ 40,601 $ 64,420 $ 31,816 $ 14,923 $ — $ 253,774 Bridge - Equipment Finance Pass $ 27,386 $ 55,015 $ 16,488 $ 90,286 $ 33,264 $ 62,353 $ — $ 284,792 Substandard — — — 1,355 — — — 1,355 Total Bridge - Equipment Finance $ 27,386 $ 55,015 $ 16,488 $ 91,641 $ 33,264 $ 62,353 $ — $ 286,147 Mortgage Warehouse Lending Pass $ — $ — $ — $ — $ — $ — $ 524,740 $ 524,740 Total Mortgage Warehouse Lending $ — $ — $ — $ — $ — $ — $ 524,740 $ 524,740 At March 31, 2023 and December 31, 2022, the balance of revolving loans converted to term loans was immaterial. The following table presents criticized and classified commercial loans at the dates indicated (in thousands): March 31, 2023 December 31, 2022 Special mention $ 101,781 $ 51,433 Substandard - accruing 596,054 605,965 Substandard - non-accruing 82,840 75,125 Doubtful 7,699 7,990 Total $ 788,374 $ 740,513
Financing Receivable, Past Due	The following table presents an aging of loans at the dates indicated (in thousands): March 31, 2023 December 31, 2022 Current 30 - 59 60 - 89 90 Days or Total Current 30 - 59 60 - 89 90 Days or Total 1-4 single family residential $ 7,069,078 $ 44,339 $ 4,761 $ 15,437 $ 7,133,615 $ 7,066,758 $ 43,016 $ 4,076 $ 14,984 $ 7,128,834 Government insured residential 969,134 167,880 81,457 437,658 1,656,129 1,025,523 159,461 94,294 492,602 1,771,880 CRE 5,657,401 2,723 — 11,576 5,671,700 5,680,829 4,328 4,773 10,027 5,699,957 C&I 8,433,706 19,573 2,570 25,200 8,481,049 8,280,321 2,508 1,028 24,677 8,308,534 Pinnacle 919,584 — — — 919,584 912,122 — — — 912,122 Bridge - franchise finance 236,063 1,094 — 2,048 239,205 243,574 1,321 — 8,879 253,774 Bridge - equipment finance 266,715 — — — 266,715 286,147 — — — 286,147 Mortgage warehouse lending 524,897 — — — 524,897 524,740 — — — 524,740 $ 24,076,578 $ 235,609 $ 88,788 $ 491,919 $ 24,892,894 $ 24,020,014 $ 210,634 $ 104,171 $ 551,169 $ 24,885,988
Financing Receivable, Nonaccrual	The following table presents information about loans on non-accrual status at the dates indicated (in thousands): March 31, 2023 December 31, 2022 Amortized Cost Amortized Cost With No Related Allowance Amortized Cost Amortized Cost With No Related Allowance 1-4 single family residential $ 23,102 $ — $ 21,311 $ — CRE 17,137 2,860 22,352 6,911 C&I 67,245 14,652 47,473 15,642 Bridge - franchise finance 6,157 2,479 13,290 1,668 $ 113,641 $ 19,991 $ 104,426 $ 24,221
Schedule of Collateral Dependent Loans	The following table presents the amortized cost basis of collateral dependent loans at the dates indicated (in thousands): March 31, 2023 December 31, 2022 Amortized Cost Extent to Which Secured by Collateral Amortized Cost Extent to Which Secured by Collateral 1-4 single family residential $ — $ — $ 730 $ 730 Commercial: CRE 14,990 14,527 19,486 18,353 C&I 22,184 21,470 26,404 25,344 Bridge - franchise finance 4,808 3,560 11,445 3,729 Total commercial 41,982 39,557 57,335 47,426 $ 41,982 $ 39,557 $ 58,065 $ 48,156
Financing Receivable, Troubled Debt Restructuring	The following table summarizes loans that were modified for borrowers experiencing financial difficulty, by type of modification, during the period indicated (dollars in thousands): Three Months Ended March 31, 2023 Interest Rate Reduction Term Extension Combination - Interest Rate Reduction and Term Extension Total % (1) Total % (1) Total % (1) Total 1-4 single family residential $ 766 — % $ — — % $ — — % $ 766 Government insured residential 109 — % 36,920 2 % 2,312 — % 39,341 C&I — — % 4,918 — % — — % 4,918 $ 875 $ 41,838 $ 2,312 $ 45,025 (1) Represents percentage of loans receivable in each category. The following table summarizes the financial effect of the modifications made to borrowers experiencing difficulty, during the periods indicated: Financial Effect Interest Rate Reduction: 1-4 single family residential Reduced weighted average contractual interest rate from 3.8% to 3.1%. Government insured residential Reduced weighted average contractual interest rate from 4.8% to 3.8%. Term Extension: Residential Added a weighted average 9.6 years to the term of the modified loans. C&I Added a weighted average 0.7 years to the term of the modified loans. Combination - Interest Rate Reduction and Term Extension: Government insured residential Reduced weighted average contractual interest rate from 5.8% to 4.9% and added a weighted average 6.9 years to the term of the modified loans. The following table presents the aging at March 31, 2023, of loans that were modified since January 1, 2023, the date of adoption of ASU 2022-02 (in thousands): Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total 1-4 single family residential $ 766 $ — $ — $ — $ 766 Government insured residential 22,346 11,083 4,683 1,229 39,341 C&I 4,918 — — — 4,918 $ 28,030 $ 11,083 $ 4,683 $ 1,229 $ 45,025 The following table summarizes loans that were modified since January 1, 2023, the date of adoption of ASU 2022-02 and subsequently defaulted, during the period indicated (in thousands): Three Months Ended March 31, 2023 Interest Rate Reduction Term Extension Combination - Interest Rate Reduction and Term Extension Total Government insured residential $ 109 $ 5,070 $ 733 $ 5,912 The following table summarizes loans that were modified in TDRs during the periods indicated, as well as loans modified during the twelve months preceding March 31, 2022 that experienced payment defaults during the periods indicated (dollars in thousands): Three Months Ended March 31, 2022 Loans Modified in TDRs TDRs Experiencing Payment Number of Amortized Cost Number of Amortized Cost 1-4 single family residential 4 $ 1,992 — $ — Government insured residential 390 63,539 125 21,391 C&I 8 15,219 — — 402 $ 80,750 125 $ 21,391

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	3 Months Ended
Derivatives and Hedging Activities (Tables)	Mar. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Interest Rate Contract Derivative Financial Instruments and Related Hedged Items	The following table summarizes the Company's derivatives designated as hedging instruments as of the dates indicated (in thousands): March 31, 2023 December 31, 2022 Notional Amount Fair Value (1) Notional Amount Fair Value (1) Asset Liability Asset Liability Derivatives designated as cash flow hedges: Interest rate swaps $ 1,750,000 $ 152 $ — $ 1,970,000 $ 941 $ (1,514) Interest rate caps purchased, indexed to Fed Funds effective rate 200,000 13,583 — 200,000 15,673 — Interest rate collar, indexed to 1-month SOFR (2) 125,000 90 — 125,000 — (203) Derivatives designated as fair value hedges: Pay-fixed interest rate swaps 100,000 — — 100,000 — — $ 2,175,000 $ 13,825 $ — $ 2,395,000 $ 16,614 $ (1,717) (1) The fair values of derivatives are included in other assets or other liabilities in the consolidated balance sheets. (2)
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location	The following table provides information about the amount of gain (loss) related to derivatives designated as cash flow hedges reclassified from AOCI into interest expense for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Location of gain (loss) reclassified from AOCI into income: Interest expense on borrowings $ 7,497 $ (4,710) Interest expense on deposits 5,049 (722) Interest income on loans (392) — $ 12,154 $ (5,432)
Derivative and Hedging Activities - Carrying Value of Hedged Item and Cumulative Fair Value Adjustments	The following table provides information about the hedged items related to derivatives designated as fair value hedges at the date indicated (in thousands): March 31, 2023 Location in Consolidated Balance Sheets Contractual balance outstanding of hedged item (1) $ 100,000 Loans Cumulative fair value hedging adjustments $ (3,114) Loans (1) This amount is included in the amortized cost basis of a closed portfolio of loans used to designate hedging relationships in a portfolio layer method hedge in which the hedged item is anticipated to be outstanding for the designated hedge period. At March 31, 2023, the amortized cost basis of the closed portfolio used in this hedging relationship was $1.0 billion.
Derivatives Not Designated as Hedging Instruments	The following table summarizes the Company's derivatives not designated as hedging instruments as of the dates indicated (in thousands): March 31, 2023 December 31, 2022 Notional Amount Fair Value (1) Notional Amount Fair Value (1) Asset Liability Asset Liability Derivatives not designated as hedges: Pay-fixed interest rate swaps $ 1,857,402 $ 62,302 $ (5,155) $ 1,916,719 $ 67,942 $ (2,195) Pay-variable interest rate swaps 1,857,402 5,249 (92,488) 1,916,719 2,195 (120,320) Interest rate caps purchased 42,920 1,830 — 42,920 1,988 — Interest rate caps sold 42,920 — (1,830) 42,920 — (1,988) $ 3,800,644 $ 69,381 $ (99,473) $ 3,919,278 $ 72,125 $ (124,503) (1) Fair value asset and liability derivatives are included in other assets and other liabilities, respectively in the consolidation balance sheets.
Schedule of Interest Rate Swaps Subject to Master Netting Agreements	The Company does not offset assets and liabilities under master netting agreements for financial reporting purposes. Information on interest rate swaps and caps subject to these agreements is as follows at the dates indicated (in thousands): March 31, 2023 Gross Amounts Offset in Balance Net Amounts Presented in Gross Amounts Not Offset in Gross Amounts Derivative Collateral Net Amount Derivative assets $ 77,957 $ — $ 77,957 $ (5,155) $ (72,032) $ 770 Derivative liabilities (5,155) — (5,155) 5,155 — — $ 72,802 $ — $ 72,802 $ — $ (72,032) $ 770 December 31, 2022 Gross Amounts Offset in Balance Net Amounts Presented in Gross Amounts Not Offset in Gross Amounts Derivative Collateral Net Amount Derivative assets $ 86,544 $ — $ 86,544 $ (3,912) $ (79,447) $ 3,185 Derivative liabilities (3,912) — (3,912) 3,912 — — $ 82,632 $ — $ 82,632 $ — $ (79,447) $ 3,185

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
Stockholders' Equity (Tables)	Mar. 31, 2023
Equity [Abstract]
Schedule of Changes in AOCI	Changes in other comprehensive income are summarized as follows for the periods indicated (in thousands): Three Months Ended March 31, 2023 2022 Before Tax Tax Effect Net of Tax Before Tax Tax Effect Net of Tax Unrealized gains (losses) on investment securities available for sale: Net unrealized holding gains (losses) arising during the period $ 101,265 $ (26,329) $ 74,936 $ (236,434) $ 61,454 $ (174,980) Amounts reclassified to gain on investment securities available for sale, net (752) 196 (556) (2,673) 695 (1,978) Net change in unrealized gains (losses) on investment securities available for sale 100,513 (26,133) 74,380 (239,107) 62,149 (176,958) Unrealized gains (losses) on derivative instruments: Net unrealized holding gains (losses) arising during the period (2,926) 761 (2,165) 41,963 (10,784) 31,179 Amounts reclassified to interest expense on deposits (5,049) 1,313 (3,736) 722 (188) 534 Amounts reclassified to interest expense on borrowings (7,497) 1,949 (5,548) 4,710 (1,224) 3,486 Amounts reclassified to interest income on loans 392 (102) 290 — — — Net change in unrealized gains (losses) on derivative instruments (15,080) 3,921 (11,159) 47,395 (12,196) 35,199 Other comprehensive income (loss) $ 85,433 $ (22,212) $ 63,221 $ (191,712) $ 49,953 $ (141,759)
Schedule of the Categories of AOCI and Changes Therein	The categories of AOCI and changes therein are presented below for the periods indicated (in thousands): Unrealized Gain (Loss) on Unrealized Gain (Loss) Total Balance at December 31, 2022 $ (498,911) $ 61,006 $ (437,905) Other comprehensive income (loss) 74,380 (11,159) 63,221 Balance at March 31, 2023 $ (424,531) $ 49,847 $ (374,684) Balance at December 31, 2021 $ 2,859 $ (18,799) $ (15,940) Other comprehensive income (loss) (176,958) 35,199 (141,759) Balance at March 31, 2022 $ (174,099) $ 16,400 $ (157,699)

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
Fair Value Measurements (Tables)	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following tables present assets and liabilities measured at fair value on a recurring basis at the dates indicated (in thousands): March 31, 2023 Level 1 Level 2 Total Investment securities available for sale: U.S. Treasury securities $ 118,383 $ — $ 118,383 U.S. Government agency and sponsored enterprise residential MBS — 1,980,533 1,980,533 U.S. Government agency and sponsored enterprise commercial MBS — 518,382 518,382 Private label residential MBS and CMOs — 2,525,482 2,525,482 Private label commercial MBS — 2,434,819 2,434,819 Single family real estate-backed securities — 448,501 448,501 Collateralized loan obligations — 1,106,078 1,106,078 Non-mortgage asset-backed securities — 94,099 94,099 State and municipal obligations — 103,950 103,950 SBA securities — 124,603 124,603 Marketable equity securities 68,769 — 68,769 Derivative assets — 83,206 83,206 Total assets at fair value $ 187,152 $ 9,419,653 $ 9,606,805 Derivative liabilities $ — $ (99,473) $ (99,473) Total liabilities at fair value $ — $ (99,473) $ (99,473) December 31, 2022 Level 1 Level 2 Total Investment securities available for sale: U.S. Treasury securities $ 135,841 $ — $ 135,841 U.S. Government agency and sponsored enterprise residential MBS — 1,983,168 1,983,168 U.S. Government agency and sponsored enterprise commercial MBS — 525,094 525,094 Private label residential MBS and CMOs — 2,530,663 2,530,663 Private label commercial MBS — 2,524,354 2,524,354 Single family real estate-backed securities — 470,441 470,441 Collateralized loan obligations — 1,136,463 1,136,463 Non-mortgage asset-backed securities — 95,976 95,976 State and municipal obligations — 116,661 116,661 SBA securities — 135,782 135,782 Marketable equity securities 90,884 — 90,884 Derivative assets — 88,739 88,739 Total assets at fair value $ 226,725 $ 9,607,341 $ 9,834,066 Derivative liabilities $ — $ (126,220) $ (126,220) Total liabilities at fair value $ — $ (126,220) $ (126,220)
Schedule of Assets for Which Nonrecurring Changes in Fair Value have been Recorded	The following table presents the net carrying value of assets classified within level 3 of the fair value hierarchy at the dates indicated, for which non-recurring changes in fair value were recorded during the period then ended (in thousands): March 31, 2023 December 31, 2022 Collateral dependent loans $ 25,320 $ 31,789 OREO — 693 $ 25,320 $ 32,482
Schedule of the Carrying Value and Fair Value of Financial Instruments	The following table presents the carrying value and fair value of financial instruments and the level within the fair value hierarchy in which those measurements are classified at the dates indicated (dollars in thousands): March 31, 2023 December 31, 2022 Level Carrying Value Fair Value Carrying Value Fair Value Assets: Cash and cash equivalents 1 $ 903,998 $ 903,998 $ 572,647 $ 572,647 Investment securities 1/2 $ 9,533,599 $ 9,533,448 $ 9,755,327 $ 9,755,190 Non-marketable equity securities 2 $ 384,697 $ 384,697 $ 294,172 $ 294,172 Loans, net 3 $ 24,734,102 $ 23,595,163 $ 24,738,042 $ 23,342,950 Derivative assets 2 $ 83,206 $ 83,206 $ 88,739 $ 88,739 Liabilities: Demand, savings and money market deposits 2 $ 20,472,921 $ 20,472,921 $ 23,241,256 $ 23,241,256 Time deposits 2 $ 5,249,977 $ 5,198,220 $ 4,268,078 $ 4,231,167 Federal funds purchased 2 $ — $ — $ 190,000 $ 190,000 FHLB advances 2 $ 7,550,000 $ 7,545,355 $ 5,420,000 $ 5,419,588 Notes and other borrowings 2 $ 720,787 $ 642,239 $ 720,923 $ 698,359 Derivative liabilities 2 $ 99,473 $ 99,473 $ 126,220 $ 126,220

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
Commitments and Contingencies (Tables)	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of the Total Lending Related Commitments Outstanding	Total lending related commitments outstanding at March 31, 2023 were as follows (in thousands): Commitments to fund loans $ 478,149 Unfunded commitments under lines of credit 5,928,956 Commercial and standby letters of credit 161,092 $ 6,568,197

Deposits (Tables)

Deposits (Tables)	3 Months Ended
Deposits (Tables)	Mar. 31, 2023
Brokers and Dealers [Abstract]
Summary of Average Balances and Weighted Average Rates Paid on Deposits	The following table presents average balances and weighted average rates paid on deposits for the periods indicated (dollars in thousands): Three Months Ended March 31, 2023 2022 Average Average Average Average Demand deposits: Non-interest bearing $ 7,458,221 — % $ 9,047,864 — % Interest bearing 2,283,505 1.87 % 3,078,037 0.18 % Savings and money market 12,145,922 3.06 % 13,401,332 0.21 % Time 4,526,480 2.81 % 3,319,585 0.44 % $ 26,414,128 2.05 % $ 28,846,818 0.17 %
Time Deposit Maturities	The following table presents maturities of time deposits as of March 31, 2023 (in thousands): Maturing in: 2023 $ 3,534,369 2024 1,306,729 2025 97,271 2026 310,548 2027 1,032 Thereafter 28 $ 5,249,977
schedule of interest expense on deposits	Interest expense on deposits for the periods indicated was as follows (in thousands): Three Months Ended March 31, 2023 2022 Interest bearing demand $ 10,545 $ 1,364 Savings and money market 91,724 6,931 Time 31,361 3,562 $ 133,630 $ 11,857

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Allowance for credit losses	$ 158,792		$ 147,946	$ 125,443	$ 126,457
Stockholders' equity	2,481,394		2,435,981	2,861,232	3,037,761
Retained Earnings
Segment Reporting Information [Line Items]
Stockholders' equity	$ 2,585,981		$ 2,551,400	$ 2,391,526	$ 2,345,342
Cumulative Effect, Period of Adoption, Adjustment
Segment Reporting Information [Line Items]
Allowance for credit losses		$ (1,794)
Stockholders' equity		1,336
Cumulative Effect, Period of Adoption, Adjustment \| Retained Earnings
Segment Reporting Information [Line Items]
Stockholders' equity		$ 1,336

Earnings Per Common Share (Comp

Earnings Per Common Share (Computation of Basic and Diluted Earnings per Common Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net income	$ 52,882	$ 67,150
Distributed and undistributed earnings allocated to participating securities	(798)	(929)
Income allocated to common stockholders for basic earnings per common share	$ 52,084	$ 66,221
Denominator:
Weighted average common shares outstanding	74,755,002	84,983,873
Less average unvested stock awards	(1,193,881)	(1,211,807)
Weighted Average Number of Shares Outstanding, Basic, Total	73,561,121	83,772,066
Basic earnings per common share	$ 0.71	$ 0.79
Numerator:
Income allocated to common stockholders for basic earnings per common share	$ 52,084	$ 66,221
Adjustment for earnings reallocated from participating securities	3	1
Income used in calculating diluted earnings per common share	$ 52,087	$ 66,222
Denominator:
Weighted Average Number of Shares Outstanding, Basic, Total	73,561,121	83,772,066
Dilutive effect of certain share-based awards	447,581	137,704
Weighted average shares for diluted earnings per common share	74,008,702	83,909,770
Diluted earnings per common share	$ 0.70	$ 0.79

Earnings Per Common Share Earni

Earnings Per Common Share Earnings per Common Share (Narrative) (Details) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Potentially dilutive securities outstanding (in Shares)	1,190,511	1,267,676

Investment Securities (Schedule

Investment Securities (Schedule of Investment Securities Available for Sale) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	$ 10,028,525	$ 10,328,650
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	5,304	2,854
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	578,999	677,061
Debt Securities, Available-for-sale	9,454,830
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss	10,038,525	10,338,650
Debt Securities, Available-for-sale and Held-to-maturity	9,464,830	9,664,443
Investment securities (including securities reported at fair value of $9,523,599 and $9,745,327)	9,533,599	9,755,327
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	129,140	148,956
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	290	63
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	11,047	13,178
Debt Securities, Available-for-sale	118,383	135,841
U.S. Government agency and sponsored enterprise residential MBS
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	2,028,070	2,036,693
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1,528	1,334
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	49,065	54,859
Debt Securities, Available-for-sale	1,980,533	1,983,168
U.S. Government agency and sponsored enterprise commercial MBS
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	584,464	600,517
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	140	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	66,222	75,423
Debt Securities, Available-for-sale	518,382	525,094
Private label residential MBS and CMOs
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	2,825,107	2,864,589
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	807	54
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	300,432	333,980
Debt Securities, Available-for-sale	2,525,482	2,530,663
Private label commercial MBS
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	2,533,319	2,645,168
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	887	176
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	99,387	120,990
Debt Securities, Available-for-sale	2,434,819	2,524,354
Single family real estate-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	468,225	502,194
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	19,724	31,753
Debt Securities, Available-for-sale	448,501	470,441
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	1,126,532	1,166,838
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	416	151
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	20,870	30,526
Debt Securities, Available-for-sale	1,106,078	1,136,463
Non-mortgage asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	98,812	102,194
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	4,713	6,218
Debt Securities, Available-for-sale	94,099	95,976
State and municipal obligations
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	106,897	122,181
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	926	695
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	3,873	6,215
Debt Securities, Available-for-sale	103,950	116,661
SBA securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss	127,959	139,320
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	310	381
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	3,666	3,919
Debt Securities, Available-for-sale	124,603	135,782
Investment securities held to maturity
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale		9,654,443
Investment securities held to maturity	10,000	10,000
Marketable equity securities
Debt Securities, Available-for-sale [Line Items]
Equity Securities, FV-NI	$ 68,769	$ 90,884

Investment Securities (Schedu_2

Investment Securities (Schedule of Maturities of Investment Securities Available for Sale) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Due in one year or less, Amortized Cost	$ 1,399,602
Due after one year through five years, Amortized Cost	5,563,191
Due after five years through ten years, Amortized Cost	1,811,023
Due after ten years, Amortized Cost	1,254,709
Amortized Cost	10,028,525	$ 10,328,650
Due in one year or less, Fair Value	1,345,012
Due after one year through five years, Fair Value	5,343,463
Due after five years through ten years, Fair Value	1,648,170
Due after ten years, Fair Value	1,118,185
Fair Value	$ 9,454,830

Investment Securities (Schedu_3

Investment Securities (Schedule of Gains and Losses on the Sale and Exchange of Investment Securities Available for Sale) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Proceeds from sale of investment securities	$ 131,879	$ 482,307
Gross realized gains on investment securities AFS	772	2,750
Gross realized losses on equity securities	(20)	(77)
Net realized gain	752	2,673
Net losses on marketable equity securities recognized in earnings	(13,301)	(10,541)
Loss on investment securities, net	$ (12,549)	$ (7,868)

Investment Securities (Schedu_4

Investment Securities (Schedule of the Aggregate Fair Value and Amount by which Amortized Cost Exceeds Fair Value for Investment Securities that are in Unrealized Loss Positions) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 1,277,284	$ 4,998,677
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	19,065	215,467
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	7,616,844	4,334,293
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	559,934	461,594
Debt Securities, Available-for-sale, Unrealized Loss Position	8,894,128	9,332,970
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	578,999	677,061
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	0	29,198
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	0	495
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	98,433	86,744
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	11,047	12,683
Debt Securities, Available-for-sale, Unrealized Loss Position	98,433	115,942
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	11,047	13,178
U.S. Government agency and sponsored enterprise residential MBS
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	450,166	1,243,286
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	4,814	26,789
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,426,663	672,322
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	44,251	28,070
Debt Securities, Available-for-sale, Unrealized Loss Position	1,876,829	1,915,608
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	49,065	54,859
U.S. Government agency and sponsored enterprise commercial MBS
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	85,834	236,102
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	2,507	5,736
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	418,940	288,992
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	63,715	69,687
Debt Securities, Available-for-sale, Unrealized Loss Position	504,774	525,094
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	66,222	75,423
Private label residential MBS and CMOs
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	132,246	1,103,578
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	4,089	93,480
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	2,283,623	1,413,642
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	296,343	240,500
Debt Securities, Available-for-sale, Unrealized Loss Position	2,415,869	2,517,220
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	300,432	333,980
Private label commercial MBS
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	292,200	1,191,969
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	5,388	39,729
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,967,412	1,223,223
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	93,999	81,261
Debt Securities, Available-for-sale, Unrealized Loss Position	2,259,612	2,415,192
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	99,387	120,990
Single family real estate-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	69,334	391,421
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	117	22,293
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	379,167	79,020
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	19,607	9,460
Debt Securities, Available-for-sale, Unrealized Loss Position	448,501	470,441
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	19,724	31,753
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	191,045	596,803
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	1,455	14,020
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	862,512	494,945
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	19,415	16,506
Debt Securities, Available-for-sale, Unrealized Loss Position	1,053,557	1,091,748
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	20,870	30,526
Non-mortgage asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	8,184	95,976
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	54	6,218
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	85,915	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	4,659	0
Debt Securities, Available-for-sale, Unrealized Loss Position	94,099	95,976
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	4,713	6,218
State and municipal obligations
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	6,352	67,444
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	74	6,154
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	27,842	1,114
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	3,799	61
Debt Securities, Available-for-sale, Unrealized Loss Position	34,194	68,558
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	3,873	6,215
SBA securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	41,923	42,900
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	567	553
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	66,337	74,291
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	3,099	3,366
Debt Securities, Available-for-sale, Unrealized Loss Position	108,260	117,191
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 3,666	$ 3,919

Investment Securities (Narrativ

Investment Securities (Narrative) (Details) $ in Thousands	3 Months Ended
Investment Securities (Narrative) (Details) $ in Thousands	Mar. 31, 2023 USD ($) security rental bond	Dec. 31, 2022 USD ($) bond
Debt Securities, Available-for-sale [Line Items]
Number of held-to-maturity securities \| bond	1	1
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| security	569
Number of securities which impairment considered insignificant (in Securities) \| security	102
Available-for-sale securities, gross unrealized loss, considered insignificant	$ 900
Interest Receivable	132,000	$ 129,000
Debt Securities, Available-for-sale, Unrealized Loss Position	8,894,128	9,332,970
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	578,999	677,061
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain (Loss), before Tax	(573,700)	(674,200)
Available-for-sale Securities
Debt Securities, Available-for-sale [Line Items]
Securities pledged as collateral	8,400,000	4,100,000
Interest Receivable	$ 36,000	34,000
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	5
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 98,433	115,942
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 11,047	13,178
U.S. Government agency and sponsored enterprise residential MBS
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	150
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 1,876,829	1,915,608
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 49,065	54,859
U.S. Government agency and sponsored enterprise commercial MBS
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	26
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 504,774	525,094
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 66,222	75,423
Private label residential MBS and CMOs
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	114
Percentage of weighted average collateral loss	2%
Percentage of weighted average credit support	18%
Percentage of securities rated AAA	95%
Percentage of securities rated AA	1%
Percentage of securities rated A	4%
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 2,415,869	2,517,220
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 300,432	333,980
Private label commercial MBS
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	104
Percentage of weighted average collateral loss	7%
Percentage of weighted average credit support	43%
Percentage of securities rated AAA	85%
Percentage of securities rated AA	11%
Percentage of securities rated A	4%
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 2,259,612	2,415,192
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 99,387	120,990
Single family real estate-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	15
Percentage of weighted average collateral loss	7%
Percentage of weighted average credit support	51%
Percentage of securities rated AAA	62%
Percentage of securities rated AA	15%
Number of Securities \| rental	1
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 448,501	470,441
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 19,724	31,753
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	26
Percentage of weighted average collateral loss	10%
Percentage of weighted average credit support	44%
Percentage of securities rated AAA	80%
Percentage of securities rated AA	16%
Percentage of securities rated A	4%
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 1,053,557	1,091,748
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 20,870	30,526
Non-mortgage asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	7
Percentage of weighted average collateral loss	4%
Percentage of weighted average credit support	24%
Percentage of securities rated AAA	47%
Percentage of securities rated AA	53%
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 94,099	95,976
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 4,713	6,218
State and municipal obligations
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	2
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 34,194	68,558
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 3,873	6,215
SBA securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| rental	18
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 108,260	117,191
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 3,666	$ 3,919

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Deferred Income	$ 56,000,000		$ 61,000,000
Financing Receivable, before Allowance for Credit Loss and Fee	24,892,894,000		24,885,988,000
Allowance for credit losses	(158,792,000)	$ (125,443,000)	(147,946,000)	$ (126,457,000)
Sales-type and Direct Financing Leases, Lease Receivable	641,000,000		634,000,000
Purchases of loans	186,792,000	862,163,000
Interest Receivable	132,000,000		129,000,000
Financing Receivable, 90 Days or More Past Due, Still Accruing	439,000,000		494,000,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	1,900,000	1,300,000
Pledged Financial Instruments, Not Separately Reported, Loans Receivable, For Federal Home Loan Bank Debt	13,200,000,000		$ 12,400,000,000
Financing receivable, allowance for credit loss, period increase	$ 10,800,000
Allowance for credit losses to total loans (in percent)	0.64%		0.59%
Small business finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, 90 Days or More Past Due, Still Accruing	$ 32,900,000		$ 30,800,000
Financing Receivable, Nonaccrual	36,900,000		40,300,000
Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	50,694,000		52,083,000
Financing Receivable, Purchased with Credit Deterioration, Discount (Premium)	42,357,000		44,354,000
Allowance for credit losses	(381,000)		(409,000)
UPB, Total	93,051,000		96,437,000
Financing Receivable, after Allowance for Credit Loss	50,313,000		51,674,000
1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	7,133,615,000		7,128,834,000
Purchases of loans	187,000,000	862,000,000
1-4 single family residential \| Interest and Fee Income, Loans and Leases
Financing Receivable Investment Past Due [Line Items]
Purchases of loans	4,300,000	$ 4,600,000
Residential Portfolio Segment [Member]
Financing Receivable Investment Past Due [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	382,000,000		413,000,000
US Government Agency Insured Loans
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	1,656,129,000		1,771,880,000
Mortgage Loans in Process of Foreclosure, Amount	369,000,000		$ 400,000,000
Commercial Portfolio Segment [Member] \| Minimum
Financing Receivable Investment Past Due [Line Items]
Financing receivable credit quality indicator, the value at which relationships are reevaluated at least annually	1,000,000
Commercial Portfolio Segment [Member] \| Maximum
Financing Receivable Investment Past Due [Line Items]
Financing receivable credit quality indicator, the value at which relationships are reevaluated at least annually	$ 3,000,000

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses (Schedule of Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 24,892,894	$ 24,885,988
Percent of total loans (in Percent)	100%	100%
Loans and Leases Receivable, Allowance	$ (158,792)	$ (147,946)
Loans and Leases Receivable, Net Amount, Total	24,734,102	24,738,042
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 16,103,150	$ 15,985,274
Percent of total loans (in Percent)	64.70%	64.30%
1-4 single family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 7,133,615	$ 7,128,834
Percent of total loans (in Percent)	28.60%	28.60%
Government Insured Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,656,129	$ 1,771,880
Percent of total loans (in Percent)	6.70%	7.10%
Commercial real estate, Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 5,346,895	$ 5,405,597
Percent of total loans (in Percent)	21.50%	21.70%
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 324,805	$ 294,360
Percent of total loans (in Percent)	1.30%	1.20%
Commercial real estate, Owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,863,333	$ 1,890,813
Percent of total loans (in Percent)	7.50%	7.60%
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 6,617,716	$ 6,417,721
Percent of total loans (in Percent)	26.50%	25.90%
Pinnacle Public Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 919,584	$ 912,122
Percent of total loans (in Percent)	3.70%	3.70%
Bridge - franchise finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 239,205	$ 253,774
Percent of total loans (in Percent)	1%	1%
Bridge - equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 266,715	$ 286,147
Percent of total loans (in Percent)	1.10%	1.10%
Mortgage warehouse lending [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 524,897	$ 524,740
Percent of total loans (in Percent)	2.10%	2.10%
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 8,789,744	$ 8,900,714
Percent of total loans (in Percent)	35.30%	35.70%

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses (ALLL Rollforward) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Jan. 01, 2023
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	$ 147,946	$ 126,457
Financing Receivable, Allowance for Credit Loss	(158,792)	(125,443)
Provision for credit losses	(19,788)	(7,830)
Charge-offs	(7,899)	(10,671)
Recoveries	2,944	2,211
Allowance for loan and lease losses, end of period	158,792	125,443
Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss			$ 1,794
Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance		126,457
Financing Receivable, Allowance for Credit Loss			(146,152)
Residential Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	11,741	9,187
Financing Receivable, Allowance for Credit Loss	(11,797)	(8,957)
Charge-offs	0	0
Recoveries	3	26
Allowance for loan and lease losses, end of period	11,797	8,957
Residential Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss			117
Residential Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance		9,187
Financing Receivable, Allowance for Credit Loss			(11,624)
Commercial Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	136,205	117,270
Financing Receivable, Allowance for Credit Loss	(146,995)	(116,486)
Charge-offs	(7,899)	(10,671)
Recoveries	2,941	2,185
Allowance for loan and lease losses, end of period	146,995	116,486
Commercial Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss			1,677
Commercial Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance		117,270
Financing Receivable, Allowance for Credit Loss			$ (134,528)
Funded Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Provision for credit losses	(17,595)	(7,446)
Funded Loans [Member] \| Residential Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Provision for credit losses	(170)	256
Funded Loans [Member] \| Commercial Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Provision for credit losses	$ (17,425)	$ (7,702)

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses Loans and Allowance for Credit Losses (Gross Charge-Offs by Year of Origination) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	$ 0
2022	64
2021	24
2020	33
2019	2,674
Prior to 2019	4,795
Revolving Loans	309
Total	7,899	$ 10,671
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior to 2019	35
Revolving Loans	0
Total	35
Commercial and industrial Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0
2022	64
2021	24
2020	0
2019	265
Prior to 2019	935
Revolving Loans	309
Total	1,597
Bridge - franchise finance
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0
2022	0
2021	0
2020	33
2019	2,409
Prior to 2019	3,825
Revolving Loans	0
Total	$ 6,267

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses Loans and Allowance for Credit Losses (Balance of ALLL and Related Loans) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Provision for credit losses	$ 19,788	$ 7,830
Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	2,193	384
Funded Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Provision for credit losses	$ 17,595	$ 7,446

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses (Schedule of Credit Exposure for Loans Based on Original LTV and FICO Score) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	$ 24,892,894	$ 24,885,988
1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	117,258	1,201,204
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,199,845	3,169,085
Financing Receivable, Originated Two Years before Latest Fiscal Year	3,130,498	922,591
Financing Receivable, Originated Three Years before Latest Fiscal Year	906,742	320,683
Financing Receivable, Originated Four Years before Latest Fiscal Year	316,340	182,814
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,462,932	1,332,457
Financing Receivable, before Allowance for Credit Loss and Fee	7,133,615	7,128,834
FICO, 760 or greater \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	74,066	805,125
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	809,442	2,513,045
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,488,061	721,982
Financing Receivable, Originated Three Years before Latest Fiscal Year	712,689	212,574
Financing Receivable, Originated Four Years before Latest Fiscal Year	221,056	97,076
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	995,139	944,783
Financing Receivable, before Allowance for Credit Loss and Fee	5,300,453	5,294,585
FICO, 720 to 759 \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	35,448	285,507
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	245,748	485,528
Financing Receivable, Originated Two Years before Latest Fiscal Year	429,084	132,928
Financing Receivable, Originated Three Years before Latest Fiscal Year	122,827	62,301
Financing Receivable, Originated Four Years before Latest Fiscal Year	52,140	45,857
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	244,446	216,047
Financing Receivable, before Allowance for Credit Loss and Fee	1,129,693	1,228,168
FICO, 719 or less \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	7,744	110,572
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	144,655	170,512
Financing Receivable, Originated Two Years before Latest Fiscal Year	213,353	67,681
Financing Receivable, Originated Three Years before Latest Fiscal Year	71,226	45,808
Financing Receivable, Originated Four Years before Latest Fiscal Year	43,144	39,881
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	223,347	171,627
Financing Receivable, before Allowance for Credit Loss and Fee	703,469	606,081
Less than 61% [Member] \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	12,750	282,940
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	280,999	1,301,279
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,282,249	354,720
Financing Receivable, Originated Three Years before Latest Fiscal Year	344,679	76,404
Financing Receivable, Originated Four Years before Latest Fiscal Year	75,652	42,864
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	491,970	472,090
Financing Receivable, before Allowance for Credit Loss and Fee	2,488,299	2,530,297
61% - 70% [Member] \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	23,708	295,206
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	296,695	857,008
Financing Receivable, Originated Two Years before Latest Fiscal Year	848,469	231,732
Financing Receivable, Originated Three Years before Latest Fiscal Year	228,400	80,383
Financing Receivable, Originated Four Years before Latest Fiscal Year	78,531	49,047
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	348,041	310,649
Financing Receivable, before Allowance for Credit Loss and Fee	1,823,844	1,824,025
71% - 80% [Member] \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	80,800	620,049
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	619,158	975,542
Financing Receivable, Originated Two Years before Latest Fiscal Year	964,695	336,066
Financing Receivable, Originated Three Years before Latest Fiscal Year	333,590	158,406
Financing Receivable, Originated Four Years before Latest Fiscal Year	156,693	86,463
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	580,755	510,633
Financing Receivable, before Allowance for Credit Loss and Fee	2,735,691	2,687,159
More than 81% [Member] \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	3,009
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,993	35,256
Financing Receivable, Originated Two Years before Latest Fiscal Year	35,085	73
Financing Receivable, Originated Three Years before Latest Fiscal Year	73	5,490
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,464	4,440
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	42,166	39,085
Financing Receivable, before Allowance for Credit Loss and Fee	85,781	87,353
30 - 59 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	235,609	210,634
30 - 59 Days Past Due \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	12,752
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	16,570	16,432
Financing Receivable, Originated Two Years before Latest Fiscal Year	16,841	3,266
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,801	2,953
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,363	1,854
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	5,764	5,759
Financing Receivable, before Allowance for Credit Loss and Fee	44,339	43,016
60 - 89 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	88,788	104,171
60 - 89 Days Past Due \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	252
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	732	1,196
Financing Receivable, Originated Two Years before Latest Fiscal Year	418	229
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	1,347
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,611	1,052
Financing Receivable, before Allowance for Credit Loss and Fee	4,761	4,076
90 Days or More Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	491,919	551,169
90 Days or More Past Due \| 1-4 single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	2,589
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,765	2,158
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,158	2,173
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,029	360
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,000	3,069
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,485	4,635
Financing Receivable, before Allowance for Credit Loss and Fee	$ 15,437	$ 14,984

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses (Schedule of Commercial Credit Exposure Based on Internal Risk Ratings) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	$ 24,892,894	$ 24,885,988
Pinnacle Public Finance [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	42,815	179,223
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	170,252	110,510
Financing Receivable, Originated Two Years before Latest Fiscal Year	107,137	66,592
Financing Receivable, Originated Three Years before Latest Fiscal Year	62,406	66,514
Financing Receivable, Originated Four Years before Latest Fiscal Year	62,354	29,783
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	474,620	459,500
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	919,584	912,122
Pinnacle Public Finance [Member] \| Pass
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	42,815	179,223
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	170,252	110,510
Financing Receivable, Originated Two Years before Latest Fiscal Year	107,137	66,592
Financing Receivable, Originated Three Years before Latest Fiscal Year	62,406	66,514
Financing Receivable, Originated Four Years before Latest Fiscal Year	62,354	29,783
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	474,620	459,500
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	919,584	912,122
Bridge - franchise finance
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	2,389	81,146
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	28,387	20,868
Financing Receivable, Originated Two Years before Latest Fiscal Year	39,633	40,601
Financing Receivable, Originated Three Years before Latest Fiscal Year	38,312	64,420
Financing Receivable, Originated Four Years before Latest Fiscal Year	53,217	31,816
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	77,267	14,923
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	239,205	253,774
Bridge - franchise finance \| Pass
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	2,389	81,146
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	28,106	19,251
Financing Receivable, Originated Two Years before Latest Fiscal Year	38,134	38,293
Financing Receivable, Originated Three Years before Latest Fiscal Year	36,376	34,483
Financing Receivable, Originated Four Years before Latest Fiscal Year	26,549	8,617
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	52,902	6,799
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	184,456	188,589
Bridge - franchise finance \| Special mention
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	5,432
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,120	2,168
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,083	0
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	7,203	7,600
Bridge - franchise finance \| Substandard
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	281	1,617
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,499	1,295
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,936	22,058
Financing Receivable, Originated Four Years before Latest Fiscal Year	21,548	17,148
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	22,282	8,124
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	47,546	50,242
Bridge - franchise finance \| Doubtful
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year		0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0
Financing Receivable, Originated Two Years before Latest Fiscal Year		1,013
Financing Receivable, Originated Three Years before Latest Fiscal Year		2,447
Financing Receivable, Originated Four Years before Latest Fiscal Year		3,883
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0
Financing Receivable, Revolving		0
Financing Receivable, before Allowance for Credit Loss and Fee		7,343
Bridge - equipment finance
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	27,386
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	26,280	55,015
Financing Receivable, Originated Two Years before Latest Fiscal Year	51,539	16,488
Financing Receivable, Originated Three Years before Latest Fiscal Year	15,922	91,641
Financing Receivable, Originated Four Years before Latest Fiscal Year	85,040	33,264
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	87,934	62,353
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	266,715	286,147
Bridge - equipment finance \| Pass
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	27,386
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	26,280	55,015
Financing Receivable, Originated Two Years before Latest Fiscal Year	51,539	16,488
Financing Receivable, Originated Three Years before Latest Fiscal Year	15,922	90,286
Financing Receivable, Originated Four Years before Latest Fiscal Year	83,887	33,264
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	87,934	62,353
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	265,562	284,792
Bridge - equipment finance \| Substandard
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	1,355
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,153	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	1,153	1,355
Mortgage warehouse lending [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, Revolving	524,897	524,740
Financing Receivable, before Allowance for Credit Loss and Fee	524,897	524,740
Mortgage warehouse lending [Member] \| Pass
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, Revolving	524,897	524,740
Financing Receivable, before Allowance for Credit Loss and Fee	524,897	524,740
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	66,399	1,268,632
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,303,538	759,380
Financing Receivable, Originated Two Years before Latest Fiscal Year	735,665	570,236
Financing Receivable, Originated Three Years before Latest Fiscal Year	565,750	1,254,557
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,243,498	569,099
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,559,777	1,081,090
Financing Receivable, Revolving	197,073	196,963
Financing Receivable, before Allowance for Credit Loss and Fee	5,671,700	5,699,957
Commercial Real Estate Portfolio Segment [Member] \| Pass
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	66,399	1,256,300
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,248,325	758,025
Financing Receivable, Originated Two Years before Latest Fiscal Year	732,160	550,133
Financing Receivable, Originated Three Years before Latest Fiscal Year	546,742	1,138,113
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,106,358	512,125
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,363,097	932,030
Financing Receivable, Revolving	197,073	196,963
Financing Receivable, before Allowance for Credit Loss and Fee	5,260,154	5,343,689
Commercial Real Estate Portfolio Segment [Member] \| Special mention
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	42,950	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,150	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	18,006
Financing Receivable, Originated Four Years before Latest Fiscal Year	17,913	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	411	709
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	63,424	18,715
Commercial Real Estate Portfolio Segment [Member] \| Substandard
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	12,332
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	12,263	1,355
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,355	20,103
Financing Receivable, Originated Three Years before Latest Fiscal Year	19,008	98,438
Financing Receivable, Originated Four Years before Latest Fiscal Year	119,227	56,974
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	196,269	148,351
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	348,122	337,553
Commercial and industrial Portfolio Segment
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	320,445	1,906,814
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,826,425	839,326
Financing Receivable, Originated Two Years before Latest Fiscal Year	774,271	449,515
Financing Receivable, Originated Three Years before Latest Fiscal Year	447,371	796,508
Financing Receivable, Originated Four Years before Latest Fiscal Year	668,442	436,649
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,321,134	957,799
Financing Receivable, Revolving	3,122,961	2,921,923
Financing Receivable, before Allowance for Credit Loss and Fee	8,481,049	8,308,534
Commercial and industrial Portfolio Segment \| Pass
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	320,398	1,880,853
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,768,713	825,410
Financing Receivable, Originated Two Years before Latest Fiscal Year	762,133	445,988
Financing Receivable, Originated Three Years before Latest Fiscal Year	428,383	689,003
Financing Receivable, Originated Four Years before Latest Fiscal Year	605,736	416,287
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,203,423	832,952
Financing Receivable, Revolving	3,071,337	2,900,336
Financing Receivable, before Allowance for Credit Loss and Fee	8,160,123	7,990,829
Commercial and industrial Portfolio Segment \| Special mention
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	38	63
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,955	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	433	208
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	3,880
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,534	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,330	20,657
Financing Receivable, Revolving	22,864	310
Financing Receivable, before Allowance for Credit Loss and Fee	31,154	25,118
Commercial and industrial Portfolio Segment \| Substandard
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	9	25,898
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	54,757	13,916
Financing Receivable, Originated Two Years before Latest Fiscal Year	11,705	3,319
Financing Receivable, Originated Three Years before Latest Fiscal Year	18,988	103,625
Financing Receivable, Originated Four Years before Latest Fiscal Year	53,187	19,715
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	114,667	104,190
Financing Receivable, Revolving	28,760	21,277
Financing Receivable, before Allowance for Credit Loss and Fee	282,073	291,940
Commercial and industrial Portfolio Segment \| Doubtful
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	6,985	647
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	714	0
Financing Receivable, Revolving	0	0
Financing Receivable, before Allowance for Credit Loss and Fee	7,699	647
Criticized Commercial Portfolio Segment
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	788,374	740,513
Criticized Commercial Portfolio Segment \| Special mention
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	101,781	51,433
Criticized Commercial Portfolio Segment \| Substandard
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	596,054	605,965
Criticized Commercial Portfolio Segment \| Substandard Non-Accruing
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	82,840	75,125
Criticized Commercial Portfolio Segment \| Doubtful
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	$ 7,699	$ 7,990

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses (Schedule of Financing Receivables Past Due) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	$ 24,892,894	$ 24,885,988
1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	7,133,615	7,128,834
Financing Receivable, Originated in Current Fiscal Year	117,258	1,201,204
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,199,845	3,169,085
Financing Receivable, Originated Two Years before Latest Fiscal Year	3,130,498	922,591
Financing Receivable, Originated Three Years before Latest Fiscal Year	906,742	320,683
Financing Receivable, Originated Four Years before Latest Fiscal Year	316,340	182,814
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,462,932	1,332,457
US Government Agency Insured Loans
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	1,656,129	1,771,880
Pinnacle Public Finance [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	919,584	912,122
Financing Receivable, Originated in Current Fiscal Year	42,815	179,223
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	170,252	110,510
Financing Receivable, Originated Two Years before Latest Fiscal Year	107,137	66,592
Financing Receivable, Originated Three Years before Latest Fiscal Year	62,406	66,514
Financing Receivable, Originated Four Years before Latest Fiscal Year	62,354	29,783
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	474,620	459,500
Bridge - franchise finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	239,205	253,774
Financing Receivable, Originated in Current Fiscal Year	2,389	81,146
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	28,387	20,868
Financing Receivable, Originated Two Years before Latest Fiscal Year	39,633	40,601
Financing Receivable, Originated Three Years before Latest Fiscal Year	38,312	64,420
Financing Receivable, Originated Four Years before Latest Fiscal Year	53,217	31,816
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	77,267	14,923
Bridge - equipment finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	266,715	286,147
Financing Receivable, Originated in Current Fiscal Year	0	27,386
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	26,280	55,015
Financing Receivable, Originated Two Years before Latest Fiscal Year	51,539	16,488
Financing Receivable, Originated Three Years before Latest Fiscal Year	15,922	91,641
Financing Receivable, Originated Four Years before Latest Fiscal Year	85,040	33,264
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	87,934	62,353
Mortgage warehouse lending [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	524,897	524,740
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Commercial and industrial Portfolio Segment
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	8,481,049	8,308,534
Financing Receivable, Originated in Current Fiscal Year	320,445	1,906,814
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,826,425	839,326
Financing Receivable, Originated Two Years before Latest Fiscal Year	774,271	449,515
Financing Receivable, Originated Three Years before Latest Fiscal Year	447,371	796,508
Financing Receivable, Originated Four Years before Latest Fiscal Year	668,442	436,649
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,321,134	957,799
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	5,671,700	5,699,957
Financing Receivable, Originated in Current Fiscal Year	66,399	1,268,632
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,303,538	759,380
Financing Receivable, Originated Two Years before Latest Fiscal Year	735,665	570,236
Financing Receivable, Originated Three Years before Latest Fiscal Year	565,750	1,254,557
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,243,498	569,099
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,559,777	1,081,090
Current
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	24,076,578	24,020,014
Current \| 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	7,069,078	7,066,758
Financing Receivable, Originated in Current Fiscal Year	117,258	1,185,611
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,179,778	3,149,299
Financing Receivable, Originated Two Years before Latest Fiscal Year	3,111,081	916,923
Financing Receivable, Originated Three Years before Latest Fiscal Year	900,912	316,023
Financing Receivable, Originated Four Years before Latest Fiscal Year	312,977	177,891
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,447,072	1,321,011
Current \| US Government Agency Insured Loans
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	969,134	1,025,523
Current \| Pinnacle Public Finance [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	919,584	912,122
Current \| Bridge - franchise finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	236,063	243,574
Current \| Bridge - equipment finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	266,715	286,147
Current \| Mortgage warehouse lending [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	524,897	524,740
Current \| Commercial and industrial Portfolio Segment
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	8,433,706	8,280,321
Current \| Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	5,657,401	5,680,829
30 - 59 Days Past Due
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	235,609	210,634
30 - 59 Days Past Due \| 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	44,339	43,016
Financing Receivable, Originated in Current Fiscal Year	0	12,752
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	16,570	16,432
Financing Receivable, Originated Two Years before Latest Fiscal Year	16,841	3,266
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,801	2,953
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,363	1,854
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	5,764	5,759
30 - 59 Days Past Due \| US Government Agency Insured Loans
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	167,880	159,461
30 - 59 Days Past Due \| Pinnacle Public Finance [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
30 - 59 Days Past Due \| Bridge - franchise finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	1,094	1,321
30 - 59 Days Past Due \| Bridge - equipment finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
30 - 59 Days Past Due \| Mortgage warehouse lending [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
30 - 59 Days Past Due \| Commercial and industrial Portfolio Segment
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	19,573	2,508
30 - 59 Days Past Due \| Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	2,723	4,328
60 - 89 Days Past Due
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	88,788	104,171
60 - 89 Days Past Due \| 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	4,761	4,076
Financing Receivable, Originated in Current Fiscal Year	0	252
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	732	1,196
Financing Receivable, Originated Two Years before Latest Fiscal Year	418	229
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	1,347
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,611	1,052
60 - 89 Days Past Due \| US Government Agency Insured Loans
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	81,457	94,294
60 - 89 Days Past Due \| Pinnacle Public Finance [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
60 - 89 Days Past Due \| Bridge - franchise finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
60 - 89 Days Past Due \| Bridge - equipment finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
60 - 89 Days Past Due \| Mortgage warehouse lending [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
60 - 89 Days Past Due \| Commercial and industrial Portfolio Segment
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	2,570	1,028
60 - 89 Days Past Due \| Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	4,773
90 Days or More Past Due
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	491,919	551,169
90 Days or More Past Due \| 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	15,437	14,984
Financing Receivable, Originated in Current Fiscal Year	0	2,589
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,765	2,158
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,158	2,173
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,029	360
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,000	3,069
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,485	4,635
90 Days or More Past Due \| US Government Agency Insured Loans
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	437,658	492,602
90 Days or More Past Due \| Pinnacle Public Finance [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
90 Days or More Past Due \| Bridge - franchise finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	2,048	8,879
90 Days or More Past Due \| Bridge - equipment finance
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
90 Days or More Past Due \| Mortgage warehouse lending [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	0	0
90 Days or More Past Due \| Commercial and industrial Portfolio Segment
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	25,200	24,677
90 Days or More Past Due \| Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	$ 11,576	$ 10,027

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses (Finance Receivable, Nonaccrual) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	$ 113,641		$ 104,426
Recorded Investment, With no specific allowance recorded	19,991		24,221
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	1,900	$ 1,300
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	17,137		22,352
Recorded Investment, With no specific allowance recorded	2,860		6,911
Residential Portfolio Segment [Member]
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	23,102		21,311
Recorded Investment, With no specific allowance recorded	0		0
Bridge - franchise finance
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	6,157		13,290
Recorded Investment, With no specific allowance recorded	2,479		1,668
Commercial and industrial Portfolio Segment
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	67,245		47,473
Recorded Investment, With no specific allowance recorded	$ 14,652		$ 15,642

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses (Schedule of Collateral Dependent Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 41,982	$ 58,065
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	14,990	19,486
Secured Debt
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	39,557	48,156
Commercial Real Estate \| Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	14,527	18,353
Residential Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	730
Residential Portfolio Segment [Member] \| Residential Real Estate
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	730
Bridge - franchise finance
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	4,808	11,445
Bridge - franchise finance \| Equipment
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	3,560	3,729
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	41,982	57,335
Commercial Portfolio Segment [Member] \| Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	39,557	47,426
Commercial and industrial Portfolio Segment
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	22,184	26,404
Commercial and industrial Portfolio Segment \| Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 21,470	$ 25,344

Loans and Allowance for Cred_13

Loans and Allowance for Credit Losses Loans and Allowance for Credit Losses (Schedule of Troubled Debt Restructurings) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts	402
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 80,750
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	125
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	$ 21,391
1-4 single family residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts	4
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 1,992
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	$ 0
US Government Agency Insured Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts	390
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 63,539
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	125
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	$ 21,391
Commercial and industrial Portfolio Segment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts	8
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 15,219
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	$ 0

Loans and Allowance for Cred_14

Loans and Allowance for Credit Losses Loans and Allowance for Credit Losses (Schedule of Loan Modifications) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 45,025
Amortized cost basis	45,025
Financing Receivable, Modifications, Number of Contracts		402
Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	28,030
30 - 59 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	11,083
60 - 89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	4,683
90 Days or More Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	1,229
1-4 single family residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	766
Amortized cost basis	766
Financing Receivable, Modifications, Number of Contracts		4
1-4 single family residential \| Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	766
1-4 single family residential \| 30 - 59 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	0
1-4 single family residential \| 60 - 89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	0
1-4 single family residential \| 90 Days or More Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	0
US Government Agency Insured Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	39,341
Amortized cost basis	39,341
Total modified loans that subsequently defaulted	5,912
Financing Receivable, Modifications, Number of Contracts		390
US Government Agency Insured Loans \| Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	22,346
US Government Agency Insured Loans \| 30 - 59 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	11,083
US Government Agency Insured Loans \| 60 - 89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	4,683
US Government Agency Insured Loans \| 90 Days or More Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	1,229
Commercial and industrial Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	4,918
Amortized cost basis	4,918
Financing Receivable, Modifications, Number of Contracts		8
Commercial and industrial Portfolio Segment \| Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	4,918
Commercial and industrial Portfolio Segment \| 30 - 59 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	0
Commercial and industrial Portfolio Segment \| 60 - 89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	0
Commercial and industrial Portfolio Segment \| 90 Days or More Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis	0
Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	875
Interest Rate Reduction \| 1-4 single family residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 766
Percentage to total financing receivables	0%
Interest Rate Reduction \| 1-4 single family residential \| Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted average interest rate decrease from modification	3.80%
Interest Rate Reduction \| 1-4 single family residential \| Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted average interest rate decrease from modification	3.10%
Interest Rate Reduction \| US Government Agency Insured Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 109
Percentage to total financing receivables	0%
Total modified loans that subsequently defaulted	$ 109
Interest Rate Reduction \| US Government Agency Insured Loans \| Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted average interest rate decrease from modification	4.80%
Interest Rate Reduction \| US Government Agency Insured Loans \| Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted average interest rate decrease from modification	3.80%
Interest Rate Reduction \| Commercial and industrial Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 0
Percentage to total financing receivables	0%
Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 41,838
Term Extension \| 1-4 single family residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 0
Percentage to total financing receivables	0%
Term Extension \| Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted average term increase from modifciation	9 years 7 months 6 days
Term Extension \| US Government Agency Insured Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 36,920
Percentage to total financing receivables	2%
Total modified loans that subsequently defaulted	$ 5,070
Term Extension \| Commercial and industrial Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 4,918
Percentage to total financing receivables	0%
Weighted average term increase from modifciation	8 months 12 days
Combination - Interest Rate Reduction and Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 2,312
Combination - Interest Rate Reduction and Term Extension \| 1-4 single family residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 0
Percentage to total financing receivables	0%
Combination - Interest Rate Reduction and Term Extension \| US Government Agency Insured Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 2,312
Percentage to total financing receivables	0%
Total modified loans that subsequently defaulted	$ 733
Combination - Interest Rate Reduction and Term Extension \| Government Insured Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted average term increase from modifciation	6 years 10 months 24 days
Combination - Interest Rate Reduction and Term Extension \| Government Insured Residential \| Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted average interest rate decrease from modification	5.80%
Combination - Interest Rate Reduction and Term Extension \| Government Insured Residential \| Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted average interest rate decrease from modification	4.90%
Combination - Interest Rate Reduction and Term Extension \| Commercial and industrial Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total modified loans	$ 0
Percentage to total financing receivables	0%

Income Taxes Income Taxes (Narr

Income Taxes Income Taxes (Narrative) (Details)	3 Months Ended
Income Taxes Income Taxes (Narrative) (Details)	Mar. 31, 2023	Mar. 31, 2022
Income Tax Examination [Line Items]
Effective Income Tax Rate Reconciliation, Percent	26.40%	24.40%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21%

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities (Schedule of Derivatives Designated as Hedging Instruments) (Details) - Designated as Hedging Instrument - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Notional Amount	$ 2,175,000	$ 2,395,000
Asset	13,825	16,614
Liability	$ 0	(1,717)
Interest rate collar \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Derivative [Line Items]
Weighted average fixed rate of interest rate derivatives (in Percent)	1.50%
Cash Flow Hedging \| Interest Rate Swap
Derivative [Line Items]
Notional Amount	$ 1,750,000	1,970,000
Asset	152	941
Liability	0	(1,514)
Cash Flow Hedging \| interest rate caps purchased, indexed to fed funds effective rate
Derivative [Line Items]
Notional Amount	200,000	200,000
Asset	13,583	15,673
Liability	0	0
Cash Flow Hedging \| Interest rate collar
Derivative [Line Items]
Notional Amount	125,000	125,000
Asset	90	0
Liability	$ 0	(203)
Cash Flow Hedging \| Interest rate collar \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Derivative [Line Items]
Weighted average fixed rate of interest rate derivatives (in Percent)	5.58%
Cash Flow Hedging \| Interest Rate Floor \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Derivative [Line Items]
Weighted average fixed rate of interest rate derivatives (in Percent)	0%
Fair Value Hedging \| Pay-fixed interest rate swaps
Derivative [Line Items]
Notional Amount	$ 100,000	100,000
Asset	0	0
Liability	$ 0	$ 0

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities Derivative and Hedging Activities - Amount of loss reclassified from AOCI into Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 12,154	$ (5,432)
Interest expense on borrowings
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	7,497	(4,710)
Interest expense on deposits
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	5,049	(722)
Interest income on loans
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ (392)	$ 0

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities (Schedule of Derivatives not Designated as Hedging Instruments) (Details) - Derivatives not designated as hedges - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Notional Amount	$ 3,800,644	$ 3,919,278
Asset	69,381	72,125
Liability	(99,473)	(124,503)
Pay-fixed forward-starting interest rate swaps
Derivative [Line Items]
Notional Amount	1,857,402	1,916,719
Asset	62,302	67,942
Liability	(5,155)	(2,195)
Pay-variable interest rate swaps
Derivative [Line Items]
Notional Amount	1,857,402	1,916,719
Asset	5,249	2,195
Liability	(92,488)	(120,320)
Interest Rate Cap
Derivative [Line Items]
Notional Amount	42,920	42,920
Asset	1,830	1,988
Liability	0	0
Interest Rate Caps Sold
Derivative [Line Items]
Notional Amount	42,920	42,920
Asset	0	0
Liability	$ (1,830)	$ (1,988)

Derivatives and Hedging Activ_6

Derivatives and Hedging Activities (Interest Rate Swaps Subject to Master Netting Agreements) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amounts Recognized, Derivative assets	$ 77,957	$ 86,544
Gross Amounts Recognized, Derivative liabilities	(5,155)	(3,912)
Gross Amounts Recognized, Derivative assets and liabilities	(72,802)	(82,632)
Gross Amounts Offset in Balance Sheet, Derivative assets	0	0
Gross Amounts Offset in Balance Sheet, Derivative liabilities	0	0
Gross Amounts Offset in Balance Sheet, Derivative assets and liabilities	0	0
Net Amounts Presented in Balance Sheet, Derivative assets	77,957	86,544
Net Amounts Presented in Balance Sheet, Derivative liabilities	(5,155)	(3,912)
Derivative Asset (Liability), Fair Value, Amount Not Offset Against Collateral	72,802	82,632
Gross Amounts Not Offset in Balance Sheet
Derivative Instruments, Derivative assets	(5,155)	(3,912)
Derivative Instruments, Derivative liabilities	5,155	3,912
Derivative Instruments, Derivative assets and liabilities	0	0
Collateral Pledged, Derivative assets	(72,032)	(79,447)
Collateral Pledged, Derivative liabilities	0	0
Collateral Pledged, Derivative assets and liabilities	(72,032)	(79,447)
Net Amount, Derivative assets	770	3,185
Net Amount, Derivative liabilities	0	0
Net Amount, Derivative assets and liabilities	$ 770	$ 3,185

Derivatives and Hedging Activ_7

Derivatives and Hedging Activities Derivative and Hedging Activities - Carrying Value of Hedged Item and Cumulative Fair Value Adjustments (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Hedged Liability, Fair Value Hedge	$ 100,000
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	(3,114)
Closed Portfolio and Beneficial Interest, Last-of-Layer, Amortized Cost	$ 1,000,000

Derivatives and Hedging Activ_8

Derivatives and Hedging Activities (Narrative) (Details) $ in Millions	Mar. 31, 2023 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount expected to be reclassified from AOCI into income	$ (37.1)

Stockholders' Equity (Changes i

Stockholders' Equity (Changes in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Unrealized gains (losses) on investment securities available for sale:
Net unrealized holding gain (loss) arising during the period, Before Tax	$ (101,265)	$ 236,434
Amounts reclassified to gain on investment securities available for sale, net, Before Tax	752	2,673
Net change in unrealized gains on securities available for sale, Before Tax	100,513	(239,107)
Net unrealized holding gain (loss) arising during the period, Tax Effect	26,329	(61,454)
Amounts reclassified to gain on investment securities available for sale, net, Tax Effect	196	695
Net change in unrealized gains on securities available for sale, Tax Effect	(26,133)	62,149
Net unrealized holding gain (loss) arising during the period, Net of Tax	74,936	(174,980)
Amounts reclassified to gain on investment securities available for sale, net, Net of Tax	(556)	(1,978)
Net change in unrealized gains (losses) on securities available for sale	74,380	(176,958)
Unrealized losses on derivative instruments:
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	(2,926)	41,963
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax	(15,080)	47,395
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	761	(10,784)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(3,921)	12,196
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	(2,165)	31,179
Reclassification adjustment for net (gains) losses realized in income	8,994	(4,020)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	(11,159)	35,199
Other comprehensive income (loss), Before Tax	85,433	(191,712)
Other comprehensive income (loss), Tax Effect	(22,212)	49,953
Other comprehensive income (loss)	63,221	(141,759)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net unrealized holding gain (loss) arising during the period, Before Tax	101,265	(236,434)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	752	2,673
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax	100,513	(239,107)
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax	26,329	(61,454)
Amounts reclassified to gain on investment securities available for sale, net, Tax Effect	196	695
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	26,133	(62,149)
Net unrealized holding gain (loss) arising during the period	74,936	(174,980)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	556	1,978
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	74,380	(176,958)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	(2,926)	41,963
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	(761)	10,784
Net unrealized holding gains (losses) arising during the period	(2,165)	31,179
Reclassification adjustment for net (gains) losses realized in income	8,994	(4,020)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax	(15,080)	47,395
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(3,921)	12,196
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	(11,159)	35,199
Other Comprehensive Income (Loss), before Tax	85,433	(191,712)
Other Comprehensive Income (Loss), Tax	22,212	(49,953)
Other Comprehensive Income (Loss), Net of Tax	63,221	(141,759)
Interest expense on deposits
Unrealized losses on derivative instruments:
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	5,049	(722)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	1,313	(188)
Reclassification adjustment for net (gains) losses realized in income	3,736	(534)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	5,049	(722)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	1,313	(188)
Reclassification adjustment for net (gains) losses realized in income	3,736	(534)
Interest expense on borrowings
Unrealized losses on derivative instruments:
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	7,497	(4,710)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	1,949	(1,224)
Reclassification adjustment for net (gains) losses realized in income	5,548	(3,486)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	7,497	(4,710)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	1,949	(1,224)
Reclassification adjustment for net (gains) losses realized in income	5,548	(3,486)
Interest income on loans
Unrealized losses on derivative instruments:
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	(392)	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	(102)	0
Reclassification adjustment for net (gains) losses realized in income	(290)	0
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	(392)	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	(102)	0
Reclassification adjustment for net (gains) losses realized in income	(290)	0
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Unrealized losses on derivative instruments:
Other comprehensive income (loss)	(11,159)	35,199
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Net of Tax	$ (11,159)	$ 35,199

Stockholders' Equity (Categorie

Stockholders' Equity (Categories of Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income, Beginning Balance	$ (437,905)
Other comprehensive income (loss)	63,221	$ (141,759)
Other comprehensive income, Ending Balance	(374,684)
Unrealized Gains on Investment Securities Available for Sale
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income, Beginning Balance	(498,911)	2,859
Other comprehensive income (loss)	74,380	(176,958)
Other comprehensive income, Ending Balance	(424,531)	(174,099)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income, Beginning Balance	61,006	(18,799)
Other comprehensive income (loss)	(11,159)	35,199
Other comprehensive income, Ending Balance	49,847	16,400
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income, Beginning Balance	(437,905)	(15,940)
Other comprehensive income (loss)	63,221	(141,759)
Other comprehensive income, Ending Balance	$ (374,684)	$ (157,699)

Fair Value Measurements (Assets

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 9,606,805	$ 9,834,066
Financial and Nonfinancial Liabilities, Fair Value Disclosure	(99,473)	(126,220)
Derivative Financial Instruments, Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	(99,473)	(126,220)
U.S. Treasury securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	118,383	135,841
U.S. Government agency and sponsored enterprise residential MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	1,980,533	1,983,168
U.S. Government agency and sponsored enterprise commercial MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	518,382	525,094
Private label residential MBS and CMOs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	2,525,482	2,530,663
Private label commercial MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	2,434,819	2,524,354
Single family real estate-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	448,501	470,441
Collateralized loan obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	1,106,078	1,136,463
Non-mortgage asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	94,099	95,976
State and municipal obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	103,950	116,661
SBA securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	124,603	135,782
Marketable equity securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	68,769	90,884
Derivative Financial Instruments, Assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	83,206	88,739
Fair Value, Inputs, Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	187,152	226,725
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| Derivative Financial Instruments, Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| U.S. Treasury securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	118,383	135,841
Fair Value, Inputs, Level 1 \| U.S. Government agency and sponsored enterprise residential MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| U.S. Government agency and sponsored enterprise commercial MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| Private label residential MBS and CMOs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| Private label commercial MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| Single family real estate-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| Collateralized loan obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| Non-mortgage asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| State and municipal obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| SBA securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 \| Marketable equity securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	68,769	90,884
Fair Value, Inputs, Level 1 \| Derivative Financial Instruments, Assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	9,419,653	9,607,341
Financial and Nonfinancial Liabilities, Fair Value Disclosure	(99,473)	(126,220)
Fair Value, Inputs, Level 2 \| Derivative Financial Instruments, Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	(99,473)	(126,220)
Fair Value, Inputs, Level 2 \| U.S. Treasury securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 \| U.S. Government agency and sponsored enterprise residential MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	1,980,533	1,983,168
Fair Value, Inputs, Level 2 \| U.S. Government agency and sponsored enterprise commercial MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	518,382	525,094
Fair Value, Inputs, Level 2 \| Private label residential MBS and CMOs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	2,525,482	2,530,663
Fair Value, Inputs, Level 2 \| Private label commercial MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	2,434,819	2,524,354
Fair Value, Inputs, Level 2 \| Single family real estate-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	448,501	470,441
Fair Value, Inputs, Level 2 \| Collateralized loan obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	1,106,078	1,136,463
Fair Value, Inputs, Level 2 \| Non-mortgage asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	94,099	95,976
Fair Value, Inputs, Level 2 \| State and municipal obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	103,950	116,661
Fair Value, Inputs, Level 2 \| SBA securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	124,603	135,782
Fair Value, Inputs, Level 2 \| Marketable equity securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 \| Derivative Financial Instruments, Assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 83,206	$ 88,739

Fair Value Measurements (Asse_2

Fair Value Measurements (Assets for which Nonrecurring Changes in Fair Value have been Recorded) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 9,606,805	$ 9,834,066
Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	25,320	32,482
Impaired Loans [Member] \| Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	25,320	31,789
OREO and Repossessed Assets [Member] \| Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 0	$ 693

Fair Value Measurements (Carryi

Fair Value Measurements (Carrying Value and Fair Value of Financial Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Assets:
Investment securities	$ 9,533,448	$ 9,755,190
Non-marketable equity securities	384,697	294,172
Liabilities:
Time deposits	5,249,977	4,268,078
Federal funds purchased	0	190,000
Fair Value, Inputs, Level 1
Assets:
Cash and cash equivalents	903,998	572,647
Fair Value, Inputs, Level 2
Assets:
Non-marketable equity securities	384,697	294,172
Derivative assets	83,206	88,739
Liabilities:
Demand, savings and money market deposits	20,472,921	23,241,256
Time deposits	5,198,220	4,231,167
Federal funds purchased	0	190,000
FHLB advances	7,545,355	5,419,588
Notes and other borrowings	642,239	698,359
Derivative liabilities	99,473	126,220
Fair Value, Inputs, Level 3
Assets:
Loans, net	23,595,163	23,342,950
Carrying Value
Assets:
Cash and cash equivalents	903,998	572,647
Investment securities	9,533,599	9,755,327
Non-marketable equity securities	384,697	294,172
Loans, net	24,734,102	24,738,042
Derivative assets	83,206	88,739
Liabilities:
Demand, savings and money market deposits	20,472,921	23,241,256
Time deposits	5,249,977	4,268,078
Federal funds purchased	0	190,000
FHLB advances	7,550,000	5,420,000
Notes and other borrowings	720,787	720,923
Derivative liabilities	$ 99,473	$ 126,220

Commitments and Contingencies C

Commitments and Contingencies Commitments (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Lending related commitments [Line Items]
Unused Commitments to Extend Credit	$ 6,568,197
Commitments to fund loans
Lending related commitments [Line Items]
Unused Commitments to Extend Credit	478,149
Unfunded commitments under lines of credit
Lending related commitments [Line Items]
Unused Commitments to Extend Credit	5,928,956
Commercial and standby letters of credit
Lending related commitments [Line Items]
Unused Commitments to Extend Credit	$ 161,092

Deposits (Summary of Average Ba

Deposits (Summary of Average Balances and Weighted Average Rates Paid on Deposits) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Demand deposits:
Non-interest bearing, average balance	$ 7,458,221	$ 9,047,864
Non-interest bearing, average rate (in Percent)	0%	0%
Interest bearing, average balance	$ 2,283,505	$ 3,078,037
Interest-bearing, average rate (in Percent)	1.87%	0.18%
Savings and Money Market, average balance	$ 12,145,922	$ 13,401,332
Weighted Average Rate Domestic Deposit Savings and Money Market	3.06%	0.21%
Time, average balance	$ 4,526,480	$ 3,319,585
Weighted Average Rate Domestic Deposit, Time Deposits	2.81%	0.44%
Deposits, average balance	$ 26,414,128	$ 28,846,818
Weighted Average Rate Domestic Deposits	2.05%	0.17%

Deposits (Schedule of Maturitie

Deposits (Schedule of Maturities of Time Deposits) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Maturities of Time Deposits [Abstract]
Time Deposit Maturities, Next Twelve Months	$ 3,534,369
Time Deposit Maturities, Year Two	1,306,729
Time Deposit Maturities, Year Three	97,271
Time Deposit Maturities, Year Four	310,548
Time Deposit Maturities, after Year Five	1,032
Time Deposit Maturities, after Year Five	28
Time	$ 5,249,977	$ 4,268,078

Deposits (Schedule of Interest

Deposits (Schedule of Interest Expense on Deposits) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Deposits [Abstract]
Interest Expense, Demand Deposit Accounts	$ 10,545	$ 1,364
Interest Expense, Money Market and Savings Deposits	91,724	6,931
Interest Expense, Time Deposits	31,361	3,562
Interest Expense, Domestic Deposits	$ 133,630	$ 11,857

Deposits (Narrative) (Details)

Deposits (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Deposits (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Deposits [Abstract]
Time deposit accounts with balances of $250,000 or more	$ 819,000		$ 730,000
Public funds deposits included in deposits	3,600,000
Interest-bearing Domestic Deposit, Brokered	5,200,000
Noninterest Expense Commission Expense	$ 8,500	$ 1,600