Pacific Premier Bancorp (PPBI) 10-Q 7 Nov 19 2019 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2019	Nov. 01, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
Document Transition Report	false
Entity File Number	0-22193
Entity Registrant Name	PACIFIC PREMIER BANCORP INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	33-0743196
Entity Address, Address Line One	17901 Von Karman Avenue
Entity Address, Address Line Two	Suite 1200
Entity Address, City or Town	Irvine
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92614
City Area Code	949
Local Phone Number	864-8000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	PPBI
Security Exchange Name	NASDAQ
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		59,363,829
Entity Central Index Key	0001028918
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Amendment Flag	false

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
ASSETS
Cash and due from banks	$ 166,238	$ 125,036
Interest-bearing deposits with financial institutions	261,477	78,370
Cash and cash equivalents	427,715	203,406
Interest-bearing time deposits with financial institutions	2,711	6,143
Investments held-to-maturity, at amortized cost (fair value of $41,302 and $44,672 as of September 30, 2019 and December 31, 2018, respectively)	40,433	45,210
Investment securities available-for-sale, at fair value	1,256,655	1,103,222
FHLB, FRB and other stock, at cost	92,986	94,918
Loans held for sale, at lower of cost or fair value	7,092	5,719
Loans held for investment	8,757,476	8,836,818
Allowance for loan losses	(35,000)	(36,072)
Loans held for investment, net	8,722,476	8,800,746
Accrued interest receivable	38,603	37,837
Other real estate owned	126	147
Premises and equipment	62,851	64,691
Deferred income taxes, net	0	15,627
Bank owned life insurance	112,716	110,871
Intangible assets	87,560	100,556
Goodwill	808,322	808,726
Other assets	151,251	89,568
Total assets	11,811,497	11,487,387
Deposit accounts:
Noninterest-bearing checking	3,623,546	3,495,737
Interest-bearing:
Checking	529,401	526,088
Money market/savings	3,362,453	3,225,849
Retail certificates of deposit	1,019,433	1,009,066
Wholesale/brokered certificates of deposit	324,455	401,611
Total interest-bearing	5,235,742	5,162,614
Total deposits	8,859,288	8,658,351
FHLB advances and other borrowings	604,558	667,681
Subordinated debentures	217,825	110,313
Deferred income taxes, net	301	0
Accrued expenses and other liabilities	140,527	81,345
Total liabilities	9,822,499	9,517,690
STOCKHOLDERS’ EQUITY
Preferred stock, $.01 par value; 1,000,000 authorized; none issued and outstanding	0	0
Common stock, $.01 par value; 150,000,000 shares authorized at September 30, 2019 and December 31, 2018; 59,364,340 shares and 62,480,755 shares issued and outstanding, respectively.	584	617
Additional paid-in capital	1,590,168	1,674,274
Retained earnings	368,051	300,407
Accumulated other comprehensive income (loss)	30,195	(5,601)
Total stockholders’ equity	1,988,998	1,969,697
Total liabilities and stockholders’ equity	$ 11,811,497	$ 11,487,387

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Investments held-to-maturity, fair value	$ 41,302	$ 44,672
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	59,364,340	62,480,755
Common stock, shares outstanding (in shares)	59,364,340	62,480,755

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
INTEREST INCOME
Loans	$ 122,974	$ 121,860	$ 119,271	$ 366,310	$ 289,069
Investment securities and other interest-earning assets	9,630	10,554	9,605	29,951	23,333
Total interest income	132,604	132,414	128,876	396,261	312,402
INTEREST EXPENSE
Deposits	15,878	15,991	11,942	45,153	25,612
FHLB advances and other borrowings	1,214	3,083	2,494	9,099	6,642
Subordinated debentures	3,177	2,699	1,727	7,627	4,983
Total interest expense	20,269	21,773	16,163	61,879	37,237
Net interest income before provision for credit losses	112,335	110,641	112,713	334,382	275,165
Provision for credit losses	1,562	334	1,981	3,422	5,995
Net interest income after provision for credit losses	110,773	110,307	110,732	330,960	269,170
NONINTEREST INCOME
Loan servicing fees	546	409	400	1,353	1,037
Earnings on bank-owned life insurance	861	851	1,270	2,622	2,498
Net gain from sales of loans	2,313	902	2,029	4,944	8,830
Net gain from sales of investment securities	4,261	212	1,063	4,900	1,399
Other income	1,228	1,001	530	3,689	2,697
Total noninterest income	11,430	6,324	8,240	25,435	24,057
NONINTEREST EXPENSE
Compensation and benefits	35,543	33,847	37,901	102,778	96,048
Premises and occupancy	7,593	7,517	7,214	22,645	17,040
Data processing	3,094	3,036	4,095	9,060	9,544
Other real estate owned operations, net	64	62	0	129	3
FDIC insurance premiums	(10)	740	1,060	1,530	2,252
Legal, audit and professional expense	3,058	3,545	3,280	9,601	6,935
Marketing expense	1,767	1,425	1,569	4,689	4,451
Office, telecommunications and postage expense	1,200	1,311	1,538	3,721	3,733
Loan expense	1,137	1,005	1,139	3,015	2,324
Deposit expense	3,478	3,668	2,833	10,729	6,811
Merger-related expense	(4)	5	13,978	656	15,857
Core deposit intangible (“CDI”) amortization	4,281	4,281	4,693	12,998	8,963
Other expense	4,135	3,494	3,482	11,298	8,705
Total noninterest expense	65,336	63,936	82,782	192,849	182,666
Net income before income taxes	56,867	52,695	36,190	163,546	110,561
Income tax	15,492	14,168	7,798	44,926	26,864
Net income	$ 41,375	$ 38,527	$ 28,392	$ 118,620	$ 83,697
EARNINGS PER SHARE
Basic (in dollars per share)	$ 0.69	$ 0.62	$ 0.46	$ 1.93	$ 1.63
Diluted (in dollars per share)	$ 0.69	$ 0.62	$ 0.46	$ 1.92	$ 1.61
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	59,293,218	61,308,046	61,727,030	60,853,081	51,282,533
Diluted (in shares)	59,670,855	61,661,773	62,361,804	61,201,858	51,965,647
Service charges on deposit accounts
NONINTEREST INCOME
Noninterest income	$ 1,440	$ 1,441	$ 1,570	$ 4,211	$ 3,777
Other service fee income
NONINTEREST INCOME
Noninterest income	360	363	317	1,079	632
Debit card interchange fee income
NONINTEREST INCOME
Noninterest income	$ 421	$ 1,145	$ 1,061	$ 2,637	$ 3,187

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income		$ 41,375	$ 38,527	$ 28,392	$ 118,620	$ 83,697
Other comprehensive income, net of tax:
Unrealized holding gain (loss) on securities available-for-sale arising during the period, net of income taxes	[1]	10,864	17,449	(3,630)	39,280	(16,095)
Reclassification adjustment for net gain on sale of securities included in net income, net of income taxes	[2]	(3,027)	(151)	(834)	(3,484)	(1,079)
Other comprehensive income (loss), net of tax		7,837	17,298	(4,464)	35,796	(17,174)
Comprehensive income, net of tax		$ 49,212	$ 55,825	$ 23,928	$ 154,416	$ 66,523
[1]	Income tax expense (benefit) on the unrealized gain (loss) on securities was $4.4 million for the three months ended September 30, 2019 , $7.7 million for the three months ended June 30, 2019 , $(1.6) million for the three months ended September 30, 2018 , $16.0 million for the nine months ended September 30, 2019 and $(6.8) million for the nine months ended September 30, 2018
[2]	Income tax expense (benefit) on the reclassification adjustment for net gains (losses) on sale of securities included in net income was $1.2 million for the three months ended September 30, 2019 , $61,000 for the three months ended June 30, 2019 , $229,000 for the three months ended September 30, 2018 , $1.4 million for the nine months ended September 30, 2019 and $320,000 for the nine months ended September 30, 2018

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Unrealized holding gain (loss) on securities arising during the period, income tax expense (benefit)	$ 4,400	$ 7,700	$ (1,600)	$ 16,000	$ (6,800)
Reclassification adjustment for net (gains) losses on sale of securities included in net income, income tax expense (benefit)	$ 1,200	$ 61	$ 229	$ 1,400	$ 320

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2017	$ 1,241,996	$ 458	$ 1,063,974	$ 177,149	$ 415
Balance (in shares) at Dec. 31, 2017		46,245,050
Increase (Decrease) in Stockholders' Equity
Net income	83,697			83,697
Other comprehensive income	(17,174)				(17,174)
Share-based compensation expense	6,362		6,362
Issuance of restricted stock, net	0
Issuance of restricted stock, net (in shares)		264,420
Common stock issued	601,171	$ 158	601,013
Common stock issued (in shares)		15,758,039
Restricted stock surrendered and canceled	(1,586)		(1,586)
Restricted stock surrendered and canceled (in shares)		(28,849)
Exercise of stock options	1,911	$ 1	1,910
Exercise of stock options (in shares)		234,061
Reclassification of certain tax effects of the Tax Cuts and Jobs Act	0			(82)	82
Balance at Sep. 30, 2018	1,916,377	$ 617	1,671,673	260,764	(16,677)
Balance (in shares) at Sep. 30, 2018		62,472,721
Balance at Jun. 30, 2018	1,288,525	$ 459	1,067,907	232,372	(12,213)
Balance (in shares) at Jun. 30, 2018		46,629,118
Increase (Decrease) in Stockholders' Equity
Net income	28,392			28,392
Other comprehensive income	(4,464)				(4,464)
Share-based compensation expense	2,445		2,445
Issuance of restricted stock, net	0
Issuance of restricted stock, net (in shares)		68,884
Common stock issued	601,171	$ 158	601,013
Common stock issued (in shares)		15,758,039
Restricted stock surrendered and canceled	(7)		(7)
Restricted stock surrendered and canceled (in shares)		(3,091)
Exercise of stock options	315	$ 0	315
Exercise of stock options (in shares)		19,771
Balance at Sep. 30, 2018	1,916,377	$ 617	1,671,673	260,764	(16,677)
Balance (in shares) at Sep. 30, 2018		62,472,721
Balance at Dec. 31, 2018	$ 1,969,697	$ 617	1,674,274	300,407	(5,601)
Balance (in shares) at Dec. 31, 2018	62,480,755	62,480,755
Increase (Decrease) in Stockholders' Equity
Net income	$ 118,620			118,620
Other comprehensive income	35,796				35,796
Repurchase and retirement of common stock	(100,000)	$ (33)	(89,887)	(10,080)
Repurchase and retirement of common stock (in shares)		(3,364,761)
Cash dividends declared	(40,807)			(40,807)
Dividend equivalents declared	0		89	(89)
Share-based compensation expense	7,927		7,927
Issuance of restricted stock, net	0
Issuance of restricted stock, net (in shares)		316,254
Restricted stock surrendered and canceled	(2,629)		(2,629)
Restricted stock surrendered and canceled (in shares)		(111,456)
Exercise of stock options	394		394
Exercise of stock options (in shares)		43,548
Balance at Sep. 30, 2019	$ 1,988,998	$ 584	1,590,168	368,051	30,195
Balance (in shares) at Sep. 30, 2019	59,364,340	59,364,340
Balance at Jun. 30, 2019	$ 1,984,456	$ 595	1,618,137	343,366	22,358
Balance (in shares) at Jun. 30, 2019		60,509,994
Increase (Decrease) in Stockholders' Equity
Net income	41,375			41,375
Other comprehensive income	7,837				7,837
Repurchase and retirement of common stock	(34,031)	$ (11)	(30,634)	(3,386)
Repurchase and retirement of common stock (in shares)		(1,145,515)
Cash dividends declared	(13,266)			(13,266)
Dividend equivalents declared	0		38	(38)
Share-based compensation expense	2,614		2,614
Issuance of restricted stock, net	0
Issuance of restricted stock, net (in shares)		11,500
Restricted stock surrendered and canceled	0		0
Restricted stock surrendered and canceled (in shares)		(12,250)
Exercise of stock options	13		13
Exercise of stock options (in shares)		611
Balance at Sep. 30, 2019	$ 1,988,998	$ 584	$ 1,590,168	$ 368,051	$ 30,195
Balance (in shares) at Sep. 30, 2019	59,364,340	59,364,340

CONSOLIDATED STATEMENTS OF ST_2

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.22	$ 0.66
Dividend equivalents declared (in dollars per share)	$ 0.22	$ 0.66

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income	$ 118,620	$ 83,697
Adjustments to net income:
Depreciation and amortization expense	7,007	5,487
Provision for credit losses	3,422	5,995
Share-based compensation expense	7,927	6,362
(Gain) loss on sale and disposal of premises and equipment	(152)	52
(Gain) loss on sale of or write down of other real estate owned	(55)	21
Net amortization on securities	3,591	5,326
Net accretion of discounts/premiums for acquired loans and deferred loan fees/costs	(19,982)	(13,362)
Gain on sale of investment securities available-for-sale	(4,900)	(1,399)
Originations of loans held for sale	(83,521)	(82,766)
Proceeds from the sales of and principal payments from loans held for sale	88,683	104,773
Gain on sale of loans	(4,944)	(8,830)
Deferred income tax expense	1,365	(564)
Change in accrued expenses and other liabilities, net	(4,855)	16,343
Income from bank owned life insurance, net	(2,029)	(2,038)
Amortization of core deposit intangible	12,998	8,963
Change in accrued interest receivable and other assets, net	7,858	11,265
Net cash provided by operating activities	131,033	139,325
Cash flows from investing activities:
Net decrease in interest-bearing time deposits with financial institutions	3,432	247
Proceeds from sale of other real estate owned	405	496
Loan originations and payments, net	197,995	(201,021)
Proceeds from loans held for sale previously classified as portfolio loans	76,579	21,556
Purchase of loans held for investment	(182,504)	(61,562)
Purchase of held-to-maturity securities	0	(29,002)
Principal payments on held-to-maturity securities	4,741	839
Purchase of securities available-for-sale	(603,457)	(390,459)
Principal payments on securities available-for-sale	85,330	103,179
Proceeds from sale or maturity of securities available-for-sale	418,471	394,536
Proceeds from the sale of premises and equipment	11,139	0
Proceeds from bank owned life insurance death benefit	405	0
Purchases of premises and equipment	(16,154)	(9,365)
Change in FHLB, FRB, and other stock, at cost	2,381	(20,954)
Funding of CRA investments	(7,295)	(13,703)
Change in cash acquired in acquisitions, net	0	146,571
Net cash used in investing activities	(8,532)	(58,642)
Cash flows from financing activities:
Net increase in deposit accounts	200,937	(90,671)
Net change in short-term borrowings	(53,075)	86,211
Repayment of long-term FHLB borrowings	(10,000)	(10,500)
Redemption of junior subordinated debt securities	(15,465)	0
Proceeds from issuance of subordinated debt, net	122,453	0
Cash dividends paid	(40,807)	0
Repurchase and retirement of common stock	(100,000)	0
Proceeds from exercise of stock options	394	1,911
Restricted stock surrendered and canceled	(2,629)	(1,586)
Net cash provided by (used in) financing activities	101,808	(14,635)
Net increase in cash and cash equivalents	224,309	66,048
Cash and cash equivalents, beginning of period	203,406	197,164
Cash and cash equivalents, end of period	427,715	263,212
Supplemental cash flow disclosures:
Interest paid	58,591	33,290
Income taxes paid	33,469	27,806
Noncash investing activities during the period:
Transfers from portfolio loans to loans held for sale	78,085	64,187
Transfers from loans to other real estate owned	329	15
Recognition of operating lease right-of-use assets	(49,542)	0
Recognition of operating lease liabilities	49,542	0
Due on unsettled security purchases	(2,034)	(9,988)
Assets acquired (liabilities assumed and capital created) in acquisitions (See Note 4):
Investment securities	0	392,858
FHLB and other stock	0	16,768
Loans	0	2,352,388
Core deposit intangible	0	71,943
Deferred income tax	0	4,536
Goodwill	0	312,239
Fixed assets	0	9,122
Other assets	0	80,478
Deposits	0	(2,506,929)
Other borrowings	0	(254,923)
Other liabilities	0	(24,859)
Common stock and additional paid-in capital	$ 0	$ (601,172)

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements include the accounts of Pacific Premier Bancorp, Inc. (the “Corporation”) and its wholly owned subsidiaries, including Pacific Premier Bank (the “Bank”) (collectively, the “Company,” “we,” “our” or “us”). All significant intercompany accounts and transactions have been eliminated in consolidation. In the opinion of management, the unaudited consolidated financial statements reflect all normal recurring adjustments that are necessary for a fair presentation of the results for the interim periods presented. The results of operations for the three and nine months ended September 30, 2019 are not necessarily indicative of the results that may be expected for any other interim period or the full year ending December 31, 2019 . Certain items in the prior year financial statements were reclassified to conform to the current year presentation. Reclassification had no effect on prior year net income or stockholders’ equity. Certain information and note disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 (the “ 2018 Annual Report”). The Company accounts for its investments in its wholly owned special purpose entities, PPBI Trust I, Heritage Oaks Capital Trust II, Mission Community Capital Trust I, Santa Lucia Bancorp (CA) Capital Trust and First Commerce Bancorp Trust I, under the equity method whereby the subsidiary’s net earnings are recognized in the Company’s statement of income. During the three months ended September 30, 2019, the Company redeemed all outstanding principal amount of junior subordinated debt securities associated with PPBI Trust I and First Commerce Bancorp Trust I. The two unconsolidated statutory trust subsidiaries were subsequently dissolved. See Note 8 to the Consolidated Financial Statements in this Form 10-Q for additional information.

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	9 Months Ended
	Sep. 30, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Accounting Standards Adopted in 2019 In March 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU” or “Update”) 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities . This Update amends guidance on the amortization period of premiums on certain purchased callable debt securities. The amendments shorten the amortization period of premiums on purchased callable debt securities to the earliest call date. This Update should be applied on a modified retrospective basis through a cumulative-effect adjustment to beginning retained earnings. The effective date of ASU 2017-08 is for interim and annual reporting periods beginning after December 15, 2018. The adoption of this standard did not have a material effect on the Company’s operating results or financial condition. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . This Update was issued to increase the transparency and comparability around lease obligations. Previously unrecorded off-balance sheet obligations and corresponding rights to use underlying leased assets are now recorded in the consolidated financial statements, accompanied by enhanced qualitative and quantitative disclosures in the notes to the consolidated financial statements. The Update is generally effective for public business entities in fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases (Topic 842): Targeted Improvements . ASU 2018-10 provides improvements related to ASU 2016-02 to increase stakeholders’ awareness of the amendments to Topic 842 and to expedite the improvements. The amendments affect narrow aspects of the guidance issued in ASU 2016-02. ASU 2018-11 allows entities adopting ASU 2016-02 to choose an additional transition method, under which an entity initially applies the accounting guidance for leases under Topic 842 at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Additionally, ASU 2018-11 allows an entity electing this additional transition method to continue to present comparative period financial statements in accordance with Topic 840 (current U.S. GAAP). ASU 2018-11 also allows lessors to not separate non-lease components from the associated lease component if certain conditions are met. The amendments in these updates became effective for annual periods as well as interim periods within those annual periods beginning after December 15, 2018. The Company elected to apply the transition provisions of Topic 842 using the alternative transition method whereby comparative periods are not restated. The Company also elected to adopt the “package” of practical expedients in its transition to Topic 842, as specified in Accounting Standard Codification (“ASC”) 842-10-65. The results of this policy election are that the Company reflected the provisions of Topic 842 in its consolidated financial statements for the first time as of and for the period ended March 31, 2019 (the period of adoption). The Company measured and recorded liabilities to make lease payments as well as right-of-use assets in the period of adoption for leases that existed as of the transition date, and will continue to present all comparative periods under Topic 840. Under this elected transition method, the Company is not required to reassess the following as part of its transition to Topic 842: (1) whether any expired or existing contracts contain leases, (2) lease classifications for any existing or expired leases and (3) initial direct costs for any existing leases. Additionally, the Company elected to apply the use of hindsight in its assessment of the term for its leases upon transition, which allows for consideration of the Company’s option to extend or terminate a lease. The Company adopted the provisions of Topic 842 on January 1, 2019, and in its transition to Topic 842, the Company initially recorded a liability to make future lease payments of approximately $45.7 million and right-of-use assets of approximately $43.8 million . The difference of $1.9 million is the accounting adjustments previously recorded under Topic 840 and Topic 805, as required by transition guidance in ASC 842-10-65. The Company was not required to record a cumulative effect adjustment to the opening balance of retained earnings as part of its transition to Topic 842. The Company’s evaluation of lease obligations and service agreements under the new standard included an assessment of the appropriate classification and related accounting of each lease agreement, a review of applicability of the new standard to existing service agreements and gathering all essential lease data to facilitate the application of the new standard. The Company’s review indicated that all of its leases are classified as operating leases or short-term leases. In accordance with the provisions of Topic 842, liabilities to make future lease payments and right-of-use assets are only recorded for leases that are not considered short-term (leases with an original term of greater than 12 months). The Company records expense for its leases on a straight-line basis in accordance with the requirements under Topic 842 for operating leases. The Company’s expense recognition for its operating leases (including short-term leases) under Topic 842 has not differed significantly from that recorded under Topic 840. Right-of-use assets for operating leases are amortized over the lease term, and liabilities to make future lease payments are accounted for using the interest method, both in accordance with Topic 842. Please also refer to Note 13 - Leases for additional information related to the Company’s leases. Recent Accounting Guidance Not Yet Effective In May 2019, the FASB issued ASU 2019-05, Financial Instruments - Credit Losses (Topic 326) - Targeted Transition Relief . This Update was issued to allow entities that have certain financial instruments within the scope of ASC 326-20, Financial Instruments - Credit Losses - Measured at Amortized Cost , to make an irrevocable election to elect the fair value option for those instruments in ASC 825-10, Financial Instruments - Overall upon the adoption of ASC 326, which for the Company is January 1, 2020. The fair value option is not applicable to held-to-maturity debt securities. The Company currently does not anticipate it will make this election upon the adoption of ASC 326. In April 2019, the FASB issued ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments . This Update was issued as part of an ongoing project on the FASB’s agenda for improving the Codification or correcting for its unintended application. The FASB issued this Update, which is specific to Updates: 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities , and 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. Improvements within this Update include: (1) Allow the measurement of credit losses on accrued interest receivable balances to be determined separately from the other components of the amortized cost basis of associated financial assets. (2) Allow entities to make an accounting policy election to not measure credit losses on accrued interest receivable balances if the entity writes off the uncollectable accrued interest balances in a timely manner through a reversal of interest income or through the recognition of credit loss expense, or both. (3) Allow entities to make an accounting policy election to present accrued interest receivable balances and any related allowance for credit losses separately from the associated financial assets on the balance sheet (not including them as part of the associated financial asset’s amortized cost). (4) Allow entities to elect a practical expedient to disclose separately the total amount of accrued interest included in the amortized cost basis as a single balance to meet certain disclosure requirements. (5) Require that entities reverse from earnings any allowance for credit losses or valuation allowance previously measured on a loan or debt security upon the reclassification of the loan or debt security from one classification or category to another (such as from held for investment to held for sale), and apply the applicable measurement guidance with the new classification or category. (6) Clarify that an entity should include an estimate for recoveries of amounts previously written off in its estimation of the allowance for credit losses. (7) Allow entities to use future interest rate environment projections in the determination of the allowance for credit losses under the discounted cash flow method. (8) Allow an entity to make an accounting policy election to adjust the effective interest rate used to discount expected future cash flows for expected prepayments on financial assets within the scope of ASC 326-20 and on available for sale debt securities within the scope of ASC 326-30 to appropriately isolate credit risk in the determination of the allowance for credit losses. (9) Clarify that an entity should consider, when determining the contractual term of a financial asset, extension or renewal options that are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the entity. (10) Clarify the guidance by specifically requiring that an entity re-measure an equity security without readily determinable fair value at fair value when an orderly transaction is identified for an identical or similar investment of the same issuer in accordance with Topic 820. That is, the amendments clarify that the measurement alternative is a nonrecurring fair value measurement. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. The Company is currently evaluating the effects of this Update on its financial statements and disclosures. In March 2019, the FASB issued ASU 2019-01, Leases (Topic 842): Codification Improvements. This Update provides clarification on certain aspects of an entity’s implementation of Topic 842 including those that relate to: (1) Determining the fair value of the underlying asset by lessors that are not manufacturers or dealers. The amendments related to this item carry forward from Topic 840 to Topic 842 an exception that allows lessors who are not manufacturers or dealers to use the cost of the underlying asset as its fair value. (2) Presentation on the statement of cash flows - sales-type and direct financing leases. The amendments related to this item clarify that all principal payments received on leases by lessors in sales-type or direct financing lease transactions should be reflected in investing activities for entities such as depository and lending institutions within in the scope of Topic 942. (3) Transition disclosures related to Topic 250, Accounting Changes and Error Corrections. The amendments related to this item clarify the FASB’s original intent by explicitly providing an exception to the paragraph 250-10-50-3 interim disclosure requirements in the Topic 842 transition disclosure requirements, which would otherwise require interim disclosures after the date of adoption of Topic 842 related to the impacts of the change on: (a) income from continuing operations, (b) net income, (c) any other financial statement line item and (d) any affected per-share amounts. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. Early adoption is permitted. The Company does not believe the effects of this ASU will have a material effect on the Company’s financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement . The amendments in this Update modify the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement . The following disclosure requirements for public companies were removed from Topic 820: • The amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy • The policy for timing of transfers between levels • The valuation processes for Level 3 fair value measurements The following disclosure requirements for public companies were modified in Topic 820: • The amendments clarify that the measurement uncertainty disclosure is to communicate information about the uncertainty in measurement as of the reporting date The following disclosure requirements for public companies were added to Topic 820: • The changes in unrealized gains and losses for the period included in other comprehensive income for recurring Level 3 fair value measurements held at the end of the reporting period • The range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. For certain unobservable inputs, an entity may disclose other quantitative information (such as the median or arithmetic average) in lieu of the weighted average if the entity determines that other quantitative information would be a more reasonable and rational method to reflect the distribution of unobservable inputs used to develop Level 3 fair value measurements The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted. In addition, an entity may early adopt any of the removed or modified disclosures immediately and delay adoption of the new disclosures until the effective date. The Company is currently evaluating the effects of ASU 2018-13 on its financial statements and disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . This Update replaces the incurred loss impairment model in current U.S. GAAP with a model that reflects current expected credit losses (“CECL”). The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables and held-to-maturity debt securities. CECL also requires credit losses on available-for-sale debt securities be measured through an allowance for credit losses when the fair value is less than the amortized cost basis. It also applies to off-balance sheet credit exposures. The Update requires that all expected credit losses for financial assets held at the reporting date be measured based on historical experience, current conditions and reasonable and supportable forecasts. The Update also requires enhanced disclosure, including qualitative and quantitative disclosures that provide additional information about significant estimates and judgments used in estimating credit losses. For public business entities, the Update is effective for annual periods beginning after December 15, 2019 and interim periods within those annual periods. In April 2019, the FASB issued ASU 2019-04, Codification Improvements to Topic 326 - Credit Losses, Topic 815 - Derivatives and Hedging and Topic 825 - Financial Instruments . Certain provisions within this Update are applicable to the Company’s CECL implementation, including the ability to make an accounting policy election not to measure an allowance for credit losses on accrued interest receivable when an entity writes off uncollectable amounts of accrued interest in a timely manner. Additionally, this Update allows an entity to make an accounting policy election not to include accrued interest receivable as part of the amortized cost of loans, but rather to report accrued interest receivable on a separate line in the consolidated balance sheets. The effective date will be the same as the effective date in ASU 2016-13. In May 2019, the FASB issued ASU 2019-05, Financial Instruments - Credit Losses (Topic 326):Targeted Transition Relief, to allow companies to irrevocably elect, upon adoption of ASU 2016-13, the fair value option for financial instruments that (1) were previously recorded at amortized cost, (2) are within the scope of the credit losses guidance in ASC 326-20, (3) are eligible for the fair value option under ASC 825-10 and (4) are not held-to-maturity debt securities. Entities are required to make this election on an instrument-by-instrument basis. The effective date will be the same as the effective date in ASU 2016-13. The Company has developed a new expected credit loss estimation model in accordance with ASU 2016-13. The Company’s CECL Committee and related sub-committees and working groups, which collectively are comprised of senior management and staff members from our finance, credit, lending, internal audit, risk management and IT functional areas, continue to make progress in accordance with the Company’s implementation plan for adoption. Early implementation activities focused on data capture, model development and portfolio segmentation, and were substantially completed during the third quarter of 2019. We have completed our primary model, which we are continuing to review, analyze and refine. During the third quarter, we have initiated validation of our primary model and documentation review of our end-to-end processes, which we expect to complete during the fourth quarter of 2019. To date, we have completed numerous iterations of model output utilizing data from interim periods starting with the fourth quarter of 2018 to test and refine our model, and we will continue to refine and validate our model during the fourth quarter of 2019. Depending on the nature of each identified pool of financial assets with similar risk characteristics, the Company is implementing a probability of default (“PD”) and loss given default (“LGD”) discounted cash flow method and a loss-rate method to estimate expected future credit losses. Additionally, the Company is incorporating reasonable and supportable economic forecasts into the estimate of expected credit losses which will require significant judgment, such as selecting forecast scenarios and related weighting, as well as determining the appropriate length of the forecast horizon. Management intends to leverage economic projections from a reputable and independent third party to inform its reasonable and supportable economic forecasts. Other internal and external indicators of economic forecasts may also be considered by management when developing the forecast metrics. The duration of the forecast horizon, the reversion period and the economic forecasts that management utilizes, as well as additional internal and external indicators of economic forecasts that management considers, may change over time depending on the nature and composition of our portfolio of financial assets. The ultimate impact of ASU 2016-13 will depend on the composition of the portfolio and economic conditions and forecasts at the time of adoption and at future measurement dates . It could also be subject to further regulatory or accounting guidance and other management judgments. Based on our loan portfolio at September 30, 2019 and management’s current expectation of future economic conditions and certain qualitative adjustments, the Company believes that adoption of the new standard will result in an increase in the allowance for credit losses by an amount within a range of $40 million and $60 million ; however, there is no assurance that the ultimate increase in the allowance for credit losses will be within the foregoing range . The Company currently anticipates the majority of the increase in the allowance for credit losses for loans will be attributable to the application of multiple-scenario economic forecasts to our commercial real estate and commercial owner-occupied loan portfolios, which have commercial real estate as the primary collateral source and longer contractual maturities relative to our loan portfolio as a whole. The Company currently does not anticipate it will record a material allowance for credit losses for its held-to-maturity and available-for-sale investment securities upon the adoption of ASU 2016-13; however, the ultimate impact will depend upon the nature and characteristics of our securities portfolios (including issuer specific matters) at the adoption date, the macroeconomic conditions and forecasts at that date, and other management judgments. In February 2019, the U.S. federal bank regulatory agencies approved a final rule modifying their regulatory capital rules and providing an option to phase in over a three-year period the day-one regulatory capital effects of ASU 2016-13. Although the Company does not currently anticipate utilizing the three-year phase-in period, the Company will not make a final determination on the issue until the Company finalizes its model validation activities.

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Our accounting policies are described in Note 1. Description of Business and Summary of Significant Accounting Policies , of our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2018 as filed with the Securities and Exchange Commission (“Form 10-K”). Select policies have been reiterated below that have a particular affiliation to our interim financial statements. Revenue Recognition – The Company accounts for certain of its revenue streams in accordance with ASC 606 - Revenue from Contracts with Customers . Revenue streams within the scope of and accounted for under ASC 606 include: service charges and fees on deposit accounts, debit card interchange fees, fees from other services the Bank provides its customers and gains and losses from the sale of other real estate owned and property, premises and equipment. ASC 606 requires revenue to be recognized when the Company satisfies related performance obligations by transferring to the customer a good or service. The recognition of revenue under ASC 606 requires the Company to first identify the contract with the customer, identify the performance obligations, determine the transaction price, allocate the transaction price to the performance obligations and finally recognize revenue when the performance obligations have been satisfied and the good or service has been transferred. The majority of the Company’s contracts with customers associated with revenue streams that are within the scope of ASC 606 are considered short-term in nature and can be canceled at any time by the customer or the Bank, such as a deposit account agreement. Other more significant revenue streams for the Company such as interest income on loans and investment securities are specifically excluded from the scope of ASC 606 and are accounted for under other applicable U.S. GAAP. Goodwill and Core Deposit Intangible – Goodwill is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually or more frequently if events and circumstances exist that indicate the necessity for such impairment tests to be performed. The Company has selected the fourth quarter as the period to perform the annual impairment test. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. Goodwill is the only intangible asset with an indefinite life on our balance sheet. Core deposit intangible assets arising from whole bank acquisitions are amortized on either an accelerated basis, reflecting the pattern in which the economic benefits of the intangible assets is consumed or otherwise used up, or on a straight-line amortization method over their estimated useful lives, which range from 6 to 10 years . Leases – The Company accounts for its leases in accordance with ASC 842, which requires the Company to record liabilities for future lease obligations as well as assets representing the right to use the underlying leased asset. Leases with a term of 12 months or less are accounted for using straight-line expense recognition with no liability or asset being recorded for such leases. Other than short-term leases, the Company classifies its leases as either finance leases or operating leases. Leases are classified as finance leases when any of the following are met: (a) the lease transfers ownership of the underlying asset to the lessee by the end of the lease term, (b) the lease contains an option to purchase the underlying asset that the lessee is reasonably certain to exercise, (c) the term of the lease represents a major part of the remaining life of the underlying asset, (d) the present value of the future lease payments equals or exceeds substantially all of the fair value of the underlying asset or (e) the underling leased asset is expected to have no alternative use to the lessor at the end of the lease term due to its specialized nature. When the Company’s assessment of a lease does not meet the foregoing criteria, and the term of the lease is in excess of 12 months, the lease is classified as an operating lease. Liabilities to make lease payments and right-of-use assets are determined based on the total contractual base rents for each lease, discounted at the rate implicit in the lease or at the Company’s estimated incremental borrowing rate if the rate is not implicit in the lease. The Company measures future base rents based on the minimum payments specified in the lease agreement, giving consideration for periodic contractual rent increases which are based on an escalation rate or a specified index. When future rent payments are based on an index, the Company uses the index rate observed at the time of lease commencement to measure future lease payments. Liabilities to make lease payments are accounted for using the interest method, which are reduced by periodic rent payments, net of interest accretion. Right-of-use assets for finance leases are amortized on a straight-line basis over the term of the lease, while right-of-use assets for operating leases are amortized over the term of the lease by amounts that represent the difference between periodic straight-line lease expense and periodic interest accretion on the related liability to make lease payments. Expense recognition for finance leases is representative of the sum of periodic amortization of the associated right-of-use asset as well as the periodic interest accretion on the liability to make lease payments. Expense recognition for operating leases is recorded on a straight-line basis. As of September 30, 2019, all of the Company’s leases were classified as either operating leases or short-term leases. From time to time the Company leases portions of the space it leases to other parties through sublease transactions. Income received from these transactions is recorded on a straight-line basis over the term of the sublease. Use of Estimates

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Acquisitions	Acquisitions Grandpoint Capital, Inc. Acquisition Effective as of July 1, 2018, the Company completed the acquisition of Grandpoint Capital, Inc. (“Grandpoint”), the holding company of Grandpoint Bank, a California-chartered bank, with $3.1 billion in total assets, $2.4 billion in gross loans and $2.5 billion in total deposits at June 30, 2018. Pursuant to the terms of the merger agreement, each outstanding share of Grandpoint voting common stock and Grandpoint non-voting common stock was converted into the right to receive 0.4750 shares of the Corporation’s common stock. The final value of the total transaction consideration was approximately $602.2 million , after approximately $28.1 million in aggregate cash consideration payable to holders of Grandpoint share-based compensation awards by Grandpoint. The transaction consideration represented the issuance of 15,758,089 shares of the Corporation’s common stock, valued at $38.15 per share, which was the closing price of the Corporation’s common stock on June 29, 2018, the last trading day prior to the consummation of the Merger. Goodwill in the amount of $312.6 million was recognized in the Grandpoint acquisition. Goodwill represents the future economic benefits arising from net assets acquired that are not individually identified and separately recognized and is attributable to synergies expected to be derived from the combination of the two entities. Goodwill recognized in this transaction is not deductible for income tax purposes. The following table represents the assets acquired and liabilities assumed of Grandpoint as of July 1, 2018 and the fair value adjustments and amounts recorded by the Company in 2018 under the acquisition method of accounting: Grandpoint Book Value Fair Value Adjustments Fair Value ASSETS ACQUIRED (dollars in thousands) Cash and cash equivalents $ 147,551 $ — $ 147,551 Investment securities 395,905 (3,047 ) 392,858 Loans, gross 2,404,042 (51,325 ) 2,352,717 Allowance for loan losses (18,665 ) 18,665 — Fixed assets 6,015 3,107 9,122 Core deposit intangible 5,093 66,850 71,943 Deferred tax assets 14,185 (9,157 ) 5,028 Other assets 97,441 (436 ) 97,005 Total assets acquired $ 3,051,567 $ 24,657 $ 3,076,224 LIABILITIES ASSUMED Deposits $ 2,506,663 $ 266 $ 2,506,929 Borrowings 255,155 (232 ) 254,923 Other liabilities 23,687 1,172 24,859 Total liabilities assumed 2,785,505 1,206 2,786,711 Excess of assets acquired over liabilities assumed $ 266,062 $ 23,451 289,513 Consideration paid 602,152 Goodwill recognized $ 312,639 Such fair values are estimates and subject to refinement for up to one year after the closing date of acquisition as additional information relative to the closing date fair values becomes available and such information is considered final, whichever is earlier. Since the acquisition, the Company has made a net adjustment of $580,000 related to loans, deferred tax assets and other assets. During the second quarter of 2019, the Company finalized its fair values with this acquisition. The Company accounted for this transaction under the acquisition method of accounting in accordance with ASC 805, Business Combinations , which requires purchased assets and liabilities assumed to be recorded at their respective fair values at the date of acquisition. Grandpoint’s loan portfolio was recorded at fair value at the date of acquisition. A valuation of Grandpoint’s loan portfolio was performed by a third party as of the acquisition date to assess the fair value of the loan portfolio. The loan portfolio was segmented into two groups; loan with credit deterioration and loans without credit deterioration, and then split further by loan type. The fair value was calculated on an individual loan basis using a discounted cash flow analysis. The discount rate utilized was based on a weighted average cost of capital, considering the cost of equity and cost of debt. Also factored into the fair value estimates were loss rates, recovery periods and prepayment rates, all of which were based on industry standards. The Company also determined the fair value of the core deposit intangible, securities, real property, leases, deposits and long-term borrowings with the assistance of third-party valuations. The fair value of other real estate owned (“OREO”) was based on recent appraisals of the properties less estimated costs to sell. The core deposit intangible on non-maturing deposits was determined by evaluating the underlying characteristics of the deposit relationships, including customer attrition, deposit interest rates, service charge income, overhead expense and costs of alternative funding. Since the fair value of intangible assets are calculated as if they were stand-alone assets, the presumption is that a hypothetical buyer of the intangible asset would be able to take advantage of potential tax benefits resulting from the asset purchase. The value of the benefit is the present value over the period of the tax benefit, using the discount rate applicable to the asset. In determining the fair value of certificates of deposit, a discounted cash flow analysis was used, which involved present valuing the contractual payments over the remaining life of the certificates of deposit at market-based interest rates. For loans acquired from Grandpoint, the contractual amounts due, expected cash flows to be collected, interest component and fair value as of acquisition date were as follows: Grandpoint Acquired Loans (dollars in thousands) Contractual amounts due $ 3,496,905 Cash flows not expected to be collected 39,071 Expected cash flows 3,457,834 Interest component of expected cash flows 1,105,117 Fair value of acquired loans $ 2,352,717 In accordance with U.S. GAAP, there was no carryover of the allowance for loan losses that had been previously recorded by Grandpoint. The operating results of the Company for the nine months ended September 30, 2018 include the operating results of Grandpoint. The following table presents the unaudited pro forma information for the net interest and other income, net income and earnings per share as if the acquisition was effective as of January 1, 2018 for the periods indicated and includes certain nonrecurring adjustments reflecting the estimated impact of certain fair value adjustments for the respective periods. Nine Months Ended September 30, 2018 (dollars in thousands, except share data) Net interest and other income $ 363,538 Net income 120,400 Basic earnings per share 1.95 Diluted earnings per share 1.93

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost and estimated fair value of securities were as follows: September 30, 2019 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value (dollars in thousands) Investment securities available-for-sale: U.S. Treasury $ 60,457 $ 3,733 $ — $ 64,190 Agency 251,329 10,778 (549 ) 261,558 Corporate 125,564 2,255 (17 ) 127,802 Municipal bonds 279,593 14,562 (56 ) 294,099 Collateralized mortgage obligation: residential 10,514 132 (4 ) 10,642 Mortgage-backed securities: residential 486,746 12,570 (952 ) 498,364 Total investment securities available-for-sale 1,214,203 44,030 (1,578 ) 1,256,655 Investment securities held-to-maturity: Mortgage-backed securities: residential 38,686 967 (98 ) 39,555 Other 1,747 — — 1,747 Total investment securities held-to-maturity 40,433 967 (98 ) 41,302 Total investment securities $ 1,254,636 $ 44,997 $ (1,676 ) $ 1,297,957 December 31, 2018 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value (dollars in thousands) Investment securities available-for-sale: U.S. Treasury $ 59,688 $ 1,224 $ — $ 60,912 Agency 128,958 1,631 (519 ) 130,070 Corporate 104,158 291 (906 ) 103,543 Municipal bonds 238,914 1,941 (2,225 ) 238,630 Collateralized mortgage obligation: residential 24,699 64 (425 ) 24,338 Mortgage-backed securities: residential 554,751 1,112 (10,134 ) 545,729 Total investment securities available-for-sale 1,111,168 6,263 (14,209 ) 1,103,222 Investment securities held-to-maturity: Mortgage-backed securities: residential 43,381 148 (686 ) 42,843 Other 1,829 — — 1,829 Total investment securities held-to-maturity 45,210 148 (686 ) 44,672 Total investment securities $ 1,156,378 $ 6,411 $ (14,895 ) $ 1,147,894 Unrealized gains and losses on investment securities available-for-sale are recognized in stockholders’ equity as accumulated other comprehensive income or loss. At September 30, 2019 , the Company had accumulated other comprehensive income of $42.5 million , or $30.2 million net of tax, compared to an accumulated other comprehensive loss of $7.9 million , or $5.6 million net of tax, at December 31, 2018 . Beginning the first quarter of 2019, the Bank no longer had HOA reverse repurchase agreements and unpledged all the supporting mortgage-backed securities. At December 31, 2018 , mortgage-backed securities with an estimated par value of $20.3 million and a fair value of $20.9 million were pledged as collateral for the Bank’s HOA reverse repurchase agreements, which totaled $75,000 . The average balance of repurchase agreement facilities was $15.0 million during the year ended December 31, 2018 . At September 30, 2019 and December 31, 2018 , there were no holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity. The Company reviews individual securities classified as available-for-sale to determine whether a decline in fair value below the amortized cost basis is temporary because (i) those declines were due to interest rate changes and not to a deterioration in the creditworthiness of the issuers of those investment securities, and (ii) we have the ability to hold those securities until there is a recovery in their values or until their maturity. If it is probable that the Company will be unable to collect all amounts due according to contractual terms of the debt security not impaired at acquisition, an other-than-temporary impairment (“OTTI”) shall be considered to have occurred. If an OTTI occurs, the cost basis of the security will be written down to its fair value as the new cost basis and the write down accounted for as a realized loss. There was no OTTI for the nine months ended September 30, 2019 or September 30, 2018 . The table below shows the number, fair value and gross unrealized holding losses of the Company’s investment securities by investment category and length of time that the securities have been in a continuous loss position. September 30, 2019 Less than 12 Months 12 Months or Longer Total Number Fair Value Gross Unrealized Holding Losses Number Fair Value Gross Unrealized Holding Losses Number Fair Value Gross Unrealized Holding Losses (dollars in thousands) Investment securities available-for-sale: Agency 4 $ 30,761 $ (207 ) 11 $ 15,789 $ (342 ) 15 $ 46,550 $ (549 ) Corporate 1 1,022 (13 ) 1 1,526 (4 ) 2 2,548 (17 ) Municipal bonds 10 9,809 (56 ) — — — 10 9,809 (56 ) Collateralized mortgage obligation: residential — — — 1 652 (4 ) 1 652 (4 ) Mortgage-backed securities: residential 6 47,359 (216 ) 19 35,853 (736 ) 25 83,212 (952 ) Total investment securities available-for-sale 21 88,951 (492 ) 32 53,820 (1,086 ) 53 142,771 (1,578 ) Investment securities held-to-maturity: Mortgage-backed securities: residential — — — 3 13,953 (98 ) 3 13,953 (98 ) Total investment securities held-to-maturity — — — 3 13,953 (98 ) 3 13,953 (98 ) Total investment securities 21 $ 88,951 $ (492 ) 35 $ 67,773 $ (1,184 ) 56 $ 156,724 $ (1,676 ) December 31, 2018 Less than 12 Months 12 Months or Longer Total Number Fair Gross Number Fair Gross Number Fair Gross (dollars in thousands) Investment securities available-for-sale: Agency 15 $ 26,229 $ (333 ) 6 $ 10,434 $ (186 ) 21 $ 36,663 $ (519 ) Corporate 9 47,805 (471 ) 8 19,369 (435 ) 17 67,174 (906 ) Municipal bonds 60 45,083 (369 ) 102 69,693 (1,856 ) 162 114,776 (2,225 ) Collateralized mortgage obligation: residential 1 814 (1 ) 8 18,104 (424 ) 9 18,918 (425 ) Mortgage-backed securities: residential 20 70,839 (435 ) 120 324,864 (9,699 ) 140 395,703 (10,134 ) Total investment securities available-for-sale 105 190,770 (1,609 ) 244 442,464 (12,600 ) 349 633,234 (14,209 ) Investment securities held-to-maturity: Mortgage-backed securities: residential 3 11,256 (81 ) 3 15,741 (605 ) 6 26,997 (686 ) Total investment securities held-to-maturity 3 11,256 (81 ) 3 15,741 (605 ) 6 26,997 (686 ) Total investment securities 108 $ 202,026 $ (1,690 ) 247 $ 458,205 $ (13,205 ) 355 $ 660,231 $ (14,895 ) The amortized cost and estimated fair value of investment securities at September 30, 2019 , by contractual maturity are shown in the table below. Due in One Year or Less Due after One Year through Five Years Due after Five Years through Ten Years Due after Ten Years Total Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value (dollars in thousands) Investment securities available-for-sale: U.S. Treasury $ 498 $ 499 $ 20,171 $ 20,702 $ 39,788 $ 42,989 $ — $ — $ 60,457 $ 64,190 Agency — — 42,658 44,453 165,240 171,635 43,431 45,470 251,329 261,558 Corporate — — — — 125,564 127,802 — — 125,564 127,802 Municipal bonds — — 3,569 3,710 34,911 36,057 241,113 254,332 279,593 294,099 Collateralized mortgage obligation: residential — — — — 657 652 9,857 9,990 10,514 10,642 Mortgage-backed securities: residential — — 2,576 2,652 168,693 172,752 315,477 322,960 486,746 498,364 Total investment securities available-for-sale 498 499 68,974 71,517 534,853 551,887 609,878 632,752 1,214,203 1,256,655 Investment securities held-to-maturity: Mortgage-backed securities: residential — — 913 953 — — 37,773 38,602 38,686 39,555 Other — — — — — — 1,747 1,747 1,747 1,747 Total investment securities held-to-maturity — — 913 953 — — 39,520 40,349 40,433 41,302 Total investment securities $ 498 $ 499 $ 69,887 $ 72,470 $ 534,853 $ 551,887 $ 649,398 $ 673,101 $ 1,254,636 $ 1,297,957 During the three months ended September 30, 2019 , June 30, 2019 and September 30, 2018 , the Company recognized gross gains on sales of available-for-sale securities in the amount of $5.1 million , $406,000 and $1.3 million , respectively. During the three months ended September 30, 2019 , June 30, 2019 and September 30, 2018 , the Company recognized gross losses on sales of available-for-sale securities in the amount of $811,000 , $194,000 and $208,000 , respectively. The Company had net proceeds from the sales of available-for-sale securities of $191.3 million , $57.2 million and $378.5 million during the three months ended September 30, 2019 , June 30, 2019 and September 30, 2018 . During the nine months ended September 30, 2019 and 2018 , the Company recognized gross gains on sales of available-for-sale securities in the amount of $6.5 million and $1.6 million , respectively. During the nine months ended September 30, 2019 , the Company recognized gross losses on the sales of available-for sale securities in the amount of $1.6 million and $208,000 , respectively. The Company had net proceeds from the sales of available-for-sale securities of $418.5 million and $394.5 million during the nine months ended September 30, 2019 and 2018 , respectively. FHLB, FRB and Other Stock At September 30, 2019 , the Company had $17.3 million in Federal Home Loan Bank of San Francisco (“FHLB”) stock, $51.6 million in Federal Reserve Bank of San Francisco (“FRB”) stock, and $24.0 million in other stock, all carried at cost. During the three months ended June 30, 2019 and September 30, 2018 , the FHLB repurchased $5.4 million and $15.0 million , respectively, of the Company’s excess FHLB stock through its stock repurchase program. During the three months ended September 30, 2019 , the FHLB did no t repurchase any of the Company’s excess FHLB stock through its stock repurchase program. The Company evaluates its investments in FHLB, FRB and other stock for impairment periodically, including their capital adequacy and overall financial condition. No impairment loss has been recorded through September 30, 2019

Loans Held for Investment

Loans Held for Investment	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Loans Held for Investment	Loans Held for Investment The following table sets forth the composition of our loan portfolio in dollar amounts at the dates indicated: September 30, 2019 December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,233,938 $ 1,364,423 Franchise 894,023 765,416 Commercial owner occupied (1) 1,678,888 1,679,122 SBA 179,965 193,882 Agribusiness 119,633 138,519 Total business loans 4,106,447 4,141,362 Real estate loans Commercial non-owner occupied 2,053,590 2,003,174 Multi-family 1,611,904 1,535,289 One-to-four family (2) 273,182 356,264 Construction 478,961 523,643 Farmland 171,667 150,502 Land 30,717 46,628 Total real estate loans 4,620,021 4,615,500 Consumer loans Consumer loans 40,548 89,424 Gross loans held for investment (3) 8,767,016 8,846,286 Deferred loan origination (fees)/costs and (discounts)/premiums, net (9,540 ) (9,468 ) Loans held for investment 8,757,476 8,836,818 Allowance for loan losses (35,000 ) (36,072 ) Loans held for investment, net $ 8,722,476 $ 8,800,746 Loans held for sale, at lower of cost or fair value $ 7,092 $ 5,719 ______________________________ (1) Secured by real estate. (2) Includes second trust deeds. (3) Total gross loans held for investment for September 30, 2019 and December 31, 2018 are net of the unaccreted fair value net purchase discounts of $46.8 million and $61.0 million , respectively. Loans Serviced for Others The Company generally retains the servicing rights of the guaranteed portion of Small Business Administration (“SBA”) loans sold, for which the Company records a servicing asset at fair value within its other assets category. At September 30, 2019 and December 31, 2018 , the servicing asset totaled $7.9 million and $8.5 million , respectively, and was included in other assets in the Company’s consolidated balance sheets. Servicing rights are evaluated for impairment based upon the fair value of the rights as compared to the carrying amount. Impairment is recognized through a valuation allowance, to the extent the fair value is less than the carrying amount. At September 30, 2019 and December 31, 2018 , the Company determined that no valuation allowance was necessary. Loans serviced for others are not included in the accompanying consolidated statements of financial condition. The unpaid principal balance of loans and participations serviced for others were $646.7 million at September 30, 2019 and $635.3 million at December 31, 2018 , including SBA participations serviced for others totaling $492.8 million at September 30, 2019 and $519.8 million at December 31, 2018 . Concentration of Credit Risk As of September 30, 2019 , the Company’s loan portfolio was primarily collateralized by various forms of real estate and business assets located predominately in California. The Company’s loan portfolio contains concentrations of credit in multi-family real estate, commercial non-owner occupied real estate, commercial owner occupied real estate loans and commercial and industrial business loans. The Bank maintains policies approved by the Bank’s Board of Directors (the “Bank Board”) that address these concentrations and diversifies its loan portfolio through loan originations, purchases and sales to meet approved concentration levels. While management believes that the collateral presently securing these loans is adequate, there can be no assurances that a significant deterioration in the California real estate market or economy would not expose the Company to significantly greater credit risk. Under applicable laws and regulations, the Bank may not make secured loans to one borrower in excess of 25% of the Bank’s unimpaired capital plus surplus and likewise in excess of 15% of the Bank’s unimpaired capital plus surplus for unsecured loans. These loans-to-one borrower limitations result in a dollar limitation of $557.5 million for secured loans and $334.5 million for unsecured loans at September 30, 2019 . In order to manage concentration risk, the Bank maintains a house lending limit well below these statutory maximums. At September 30, 2019 , the Bank’s largest aggregate outstanding balance of loans to one borrower was $125.3 million comprised of $101.5 million and $23.8 million of secured and unsecured credit, respectively. Credit Quality and Credit Risk Management The Company’s credit quality and credit risk are controlled in two distinct areas. The first is the loan origination process, wherein the Bank underwrites credit quality and chooses which risks it is willing to accept. The Company maintains a comprehensive credit policy, which sets forth maximum tolerances for key elements of loan risk. The policy identifies and sets forth specific guidelines for analyzing each of the loan products the Company offers from both an individual and portfolio-wide basis. The credit policy is reviewed annually by the Bank’s Board. The Bank’s underwriters ensure key risk factors are analyzed with nearly all underwriting including a comprehensive global cash flow analysis of the prospective borrowers. The second is in the ongoing oversight of the loan portfolio, where existing credit risk is measured and monitored, and where performance issues are dealt with in a timely and comprehensive fashion. Credit risk is managed within the loan portfolio by the Company’s portfolio managers based on a comprehensive credit and portfolio review policy. This policy requires a program of financial data collection and analysis, comprehensive loan reviews, property and/or business inspections and monitoring of portfolio concentrations and trends. The portfolio managers also monitor borrowing bases under asset-based lines of credit, loan covenants, and other conditions associated with the Company’s business loans as a means to help identify potential credit risk. Individual loans, excluding the homogeneous loan portfolio, are reviewed at least every two years and in most cases, more often, including the assignment or confirmation of a risk grade. Risk grades are based on a six -grade Pass scale, along with Special Mention, Substandard, Doubtful and Loss classifications, as such classifications are defined by the regulatory agencies. The assignment of risk grades allows the Company to, among other things, identify the risk associated with each credit in the portfolio, and to provide a basis for estimating credit losses inherent in the portfolio. Risk grades are reviewed regularly with the Company’s Credit and Portfolio Review Committee, and the portfolio management and risk grading process is reviewed on an ongoing basis by an independent loan review function, as well as by regulatory agencies during scheduled examinations. The following provides brief definitions for risk grades assigned to loans in the portfolio: • Pass classifications represent assets with a level of credit quality, in which no well-defined deficiency or weakness exists. • Special Mention assets do not currently expose the Bank to a sufficient risk to warrant classification in one of the adverse categories, but possess correctable deficiencies or potential weaknesses deserving management’s close attention. • Substandard assets are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. These assets are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. OREO acquired from foreclosure is also classified as Substandard. • Doubtful credits have all the weaknesses inherent in Substandard credits, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. • Loss assets are those that are considered uncollectible and of such little value that their continuance as assets is not warranted. Amounts classified as loss are promptly charged off. The Bank’s portfolio managers also manage loan performance risks, collections, workouts, bankruptcies and foreclosures. A special department, whose portfolio managers have professional expertise in these areas, typically handles or advises on these types of matters. Loan performance risks are mitigated by our portfolio managers acting promptly and assertively to address problem credits when they are identified. Collection efforts commence immediately upon non-payment, and the portfolio managers seek to promptly determine the appropriate steps to minimize the Company’s risk of loss. When foreclosure will maximize the Company’s recovery for a non-performing loan, the portfolio managers will take appropriate action to initiate the foreclosure process. When a loan is graded as Special Mention, Substandard or Doubtful, the Company obtains an updated valuation of the underlying collateral. If the credit in question is also identified as impaired, a valuation allowance, if necessary, is established against such loan or a loss is recognized by a charge to the allowance for loan losses (“ALLL”) if management believes that some or all of the full amount of the Company’s recorded investment in the loan is no longer collectable. The Company typically obtains or confirms updated valuations of underlying collateral for Special Mention and classified loans on an annual basis in order to have the most current indication of fair value. Once a loan is identified as impaired, an analysis of the underlying collateral is performed at least quarterly, and corresponding changes in any related valuation allowance are made or balances deemed to be fully uncollectable are charged-off. The following tables stratify the loan portfolio by the Company’s internal risk grading as of the periods indicated: Credit Risk Grades Pass Special Mention Substandard Doubtful Total Gross Loans September 30, 2019 (dollars in thousands) Business loans Commercial and industrial $ 1,219,358 $ 4,438 $ 10,142 $ — $ 1,233,938 Franchise 880,632 13,375 16 — 894,023 Commercial owner occupied 1,669,152 1,321 8,415 — 1,678,888 SBA 171,393 1,881 6,691 — 179,965 Agribusiness 107,551 — 12,082 — 119,633 Real estate loans Commercial non-owner occupied 2,052,813 — 777 — 2,053,590 Multi-family 1,611,686 — 218 — 1,611,904 One-to-four family 272,555 — 627 — 273,182 Construction 478,961 — — — 478,961 Farmland 171,667 — — — 171,667 Land 30,585 — 132 — 30,717 Consumer loans Consumer loans 40,494 — 54 — 40,548 Totals $ 8,706,847 $ 21,015 $ 39,154 $ — $ 8,767,016 Credit Risk Grades Pass Special Substandard Doubtful Total Gross December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,340,284 $ 12,005 $ 12,134 $ — $ 1,364,423 Franchise 760,795 4,431 190 — 765,416 Commercial owner occupied 1,660,994 1,580 16,548 — 1,679,122 SBA 184,687 2,289 6,906 — 193,882 Agribusiness 125,355 — 13,164 — 138,519 Real estate loans Commercial non-owner occupied 1,996,756 731 5,687 — 2,003,174 Multi-family 1,530,567 4,060 662 — 1,535,289 One-to-four family 350,083 728 5,453 — 356,264 Construction 523,643 — — — 523,643 Farmland 150,381 — 121 — 150,502 Land 46,008 132 488 — 46,628 Consumer loans Consumer loans 89,321 — 103 — 89,424 Totals $ 8,758,874 $ 25,956 $ 61,456 $ — $ 8,846,286 The following tables set forth delinquencies in the Company’s loan portfolio at the dates indicated: Days Past Due Current 30-59 60-89 90+ Total Gross Loans Non-accruing September 30, 2019 (dollars in thousands) Business loans Commercial and industrial $ 1,229,223 $ 101 $ 3,105 $ 1,509 $ 1,233,938 $ 2,950 Franchise 893,999 8 — 16 894,023 16 Commercial owner occupied 1,677,101 382 — 1,405 1,678,888 1,405 SBA 176,541 731 107 2,586 179,965 2,586 Agribusiness 119,633 — — — 119,633 — Real estate loans Commercial non-owner occupied 2,052,813 — — 777 2,053,590 777 Multi-family 1,611,904 — — — 1,611,904 — One-to-four family 272,679 503 — — 273,182 371 Construction 478,961 — — — 478,961 — Farmland 171,667 — — — 171,667 — Land 30,717 — — — 30,717 — Consumer loans Consumer loans 40,548 — — — 40,548 — Totals $ 8,755,786 $ 1,725 $ 3,212 $ 6,293 $ 8,767,016 $ 8,105 Days Past Due Current 30-59 60-89 90+ Total Gross Loans Non-accruing December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,361,979 $ 309 $ 1,204 $ 931 $ 1,364,423 $ 931 Franchise 759,546 5,680 — 190 765,416 190 Commercial owner occupied 1,677,967 343 — 812 1,679,122 599 SBA 190,732 524 — 2,626 193,882 2,739 Agribusiness 138,519 — — — 138,519 — Real estate loans Commercial non-owner occupied 2,003,174 — — — 2,003,174 — Multi-family 1,535,275 14 — — 1,535,289 — One-to-four family 356,219 30 9 6 356,264 398 Construction 523,643 — — — 523,643 — Farmland 150,502 — — — 150,502 — Land 46,628 — — — 46,628 — Consumer loans Consumer loans 89,249 146 29 — 89,424 — Totals $ 8,833,433 $ 7,046 $ 1,242 $ 4,565 $ 8,846,286 $ 4,857 Impaired Loans The Company considers a loan to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement or it is determined that the likelihood of the Company receiving all scheduled payments, including interest, when due is remote. The Company has no commitments to lend additional funds to debtors whose loans have been impaired. The Company reviews loans for impairment when the loan is classified as Substandard or worse, delinquent 90 days, determined by management to be collateral dependent, or when the borrower files bankruptcy or is granted a troubled debt restructuring (“TDR”). Measurement of impairment is based on the loan’s expected future cash flows discounted at the loan’s effective interest rate, measured by reference to an observable market value, if one exists, or the fair value of the collateral if the loan is deemed collateral dependent. Loans are generally charged-off at the time the loan is classified as a loss. Valuation allowances are determined on a loan-by-loan basis or by aggregating loans with similar risk characteristics. The following tables provide a summary of the Company’s investment in impaired loans as of the period indicated: Impaired Loans Unpaid Principal Balance Recorded Investment With Specific Allowance Without Specific Allowance Specific Allowance for Impaired Loans (dollars in thousands) September 30, 2019 Business loans Commercial and industrial $ 3,099 $ 2,950 $ — $ 2,950 $ — Franchise 697 16 — 16 — Commercial owner occupied 1,427 1,406 — 1,406 — SBA 3,320 2,586 — 2,586 — Agribusiness 6,903 6,903 — 6,903 — Real estate loans Commercial non-owner occupied 1,351 777 — 777 — One-to-four family 413 371 — 371 — Totals $ 17,210 $ 15,009 $ — $ 15,009 $ — Impaired Loans Unpaid Principal Balance Recorded Investment With Specific Allowance Without Specific Allowance Specific Allowance for Impaired Loans (dollars in thousands) December 31, 2018 Business loans Commercial and industrial $ 1,071 $ 1,023 $ 550 $ 473 $ 118 Franchise 190 189 — 189 — Commercial owner occupied 628 599 — 599 — SBA 7,598 2,739 488 2,251 466 Agribusiness 7,500 7,500 — 7,500 — Real estate loans One-to-four family 453 408 — 408 — Totals $ 17,440 $ 12,458 $ 1,038 $ 11,420 $ 584 The following table presents information on impaired loans and leases, disaggregated by class, for the periods indicated: Impaired Loans Three Months Ended September 30, 2019 June 30, 2019 September 30, 2018 Average Recorded Investment Interest Income Recognized (1) Average Recorded Investment Interest Income Recognized (1) Average Recorded Investment Interest Income Recognized (1) (dollars in thousands) Business loans Commercial and industrial $ 3,078 $ — $ 2,614 $ — $ 1,030 $ — Franchise 679 — 4,047 — 209 — Commercial owner occupied 845 — 564 — — — SBA 2,488 — 3,139 — 1,914 — Agribusiness 7,092 104 7,489 109 — — Real estate loans Commercial non-owner occupied 421 — 162 — 1,290 — Multi-family — — — — 589 — One-to-four family 373 — 383 — 1,406 — Land 320 — 160 — 5 — Consumer loans Consumer loans — $ — 17 — 13 — Totals $ 15,296 $ 104 $ 18,575 $ 109 $ 6,456 $ — (1) Interest income recognized represents interest on accruing loans. Impaired Loans Nine Months Ended September 30, 2019 2018 Average Recorded Investment Interest Income Recognized (1) Average Recorded Investment Interest Income Recognized (1) (dollars in thousands) Business loans: Commercial and industrial $ 2,565 $ — $ 1,161 $ — Franchise 2,901 — 93 — Commercial owner occupied 662 — 1,931 — SBA 2,969 — 1,505 — Agribusiness 7,360 303 — — Real estate loans: Commercial non-owner occupied 194 — 573 — Multi-family — — 666 — One-to-four family 383 — 1,258 — Land 160 — 6 — Consumer loans: Consumer loans 25 — 41 — Totals $ 17,219 $ 303 $ 7,234 $ — (1) Interest income recognized represents interest on accruing loans. The following table provides additional detail on the components of impaired loans at the period end indicated: September 30, 2019 December 31, 2018 (dollars in thousands) Nonaccrual loans $ 8,105 $ 4,857 Accruing loans 6,904 7,601 Total impaired loans $ 15,009 $ 12,458 When loans are placed on nonaccrual status, previously accrued but unpaid interest is reversed from earnings. Payments received on nonaccrual loans are generally applied as a reduction to the loan principal balance. If the likelihood of further loss is remote, the Company will recognize interest on a cash basis only. Loans may be returned to accruing status if the Company believes that all remaining principal and interest is fully collectible and there has been at least three months of sustained repayment performance since the loan was placed on nonaccrual. The Company typically does not accrue interest on loans 90 days or more past due or when, in the opinion of management, there is reasonable doubt as to the timely collection of principal or interest. The Company had impaired loans on nonaccrual status of $8.1 million at September 30, 2019 and $4.9 million at December 31, 2018 . The Company had no loans 90 days or more past due and still accruing at September 30, 2019 . Income recognition for purchased credit impaired (“PCI”) loans is accounted for in accordance with ASC Subtopic 310-30 Receivables-Loans and Debt Securities Acquired with Deteriorated Credit Quality. The Company had $213,000 in loans 90 days or more past due and still accruing at December 31, 2018 , all of which were PCI loans. There were no TDRs at September 30, 2019 and December 31, 2018 . The Company had no consumer mortgage loans collateralized by residential real estate property for which formal foreclosure proceedings were in process as of September 30, 2019 or December 31, 2018 . Purchased Credit Impaired Loans The Company has purchased loans that have experienced deterioration of credit quality between origination and acquisition and for which it was probable, at acquisition, that not all contractually required payments would be collected. The carrying amount of those loans is as follows: September 30, 2019 December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ — $ 10 Commercial owner occupied 577 632 SBA 1,154 1,265 Real estate loans Commercial non-owner occupied — 275 Total purchased credit impaired $ 1,731 $ 2,182 On each acquisition date, the amount by which the undiscounted expected cash flows of the PCI loans exceed the estimated fair value of the loan is the “accretable yield.” The accretable yield is measured at each financial reporting date and represents the difference between the remaining undiscounted expected cash flows and the current carrying value of the PCI loan. At September 30, 2019 , the Company had $1.7 million of PCI loans, of which none were placed on nonaccrual status. The following table summarizes the accretable yield on the PCI loans for the periods indicated. Three Months Ended Nine Months Ended September 30, June 30, September 30, September 30, 2019 2019 2018 2019 2018 (dollars in thousands) Balance at the beginning of period $ 296 $ 332 $ 1,473 $ 411 $ 3,019 Additions — — 483 — 483 Accretion (46 ) (45 ) (162 ) (170 ) (668 ) Payoffs — (9 ) (1 ) (9 ) (1,819 ) Sales — — — $ — $ — Reclassification from nonaccretable difference (18 ) 18 195 — 973 Balance at the end of period $ 232 $ 296 $ 1,988 $ 232 $ 1,988

Allowance for Loan Losses

Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2019
Provision for Loan and Lease Losses [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses The Company’s ALLL covers estimated credit losses on individually evaluated loans that are determined to be impaired as well as estimated probable incurred losses inherent in the remainder of the loan portfolio. The ALLL is prepared using the information provided by the Company’s credit review process together with data from peer institutions and economic information gathered from published sources. The loan portfolio is segmented into groups of loans with similar risk characteristics. Each segment possesses varying degrees of risk based on, among other things, the type of loan, the type of collateral, and the sensitivity of the borrower or industry to changes in external factors such as economic conditions. An estimated loss rate calculated using the Company’s actual historical loss rates adjusted for current portfolio trends, economic conditions and other relevant internal and external factors, is applied to each group’s aggregate loan balances. The Company’s base ALLL factors are determined by management using the Bank’s annualized actual trailing charge-off data over a full credit cycle with the loss emergence period extending from 1 year to 1.6 years . Adjustments to those base factors are made for relevant internal and external factors. Those factors may include: • Changes in national, regional and local economic conditions, including trends in real estate values and the interest rate environment, • Changes in the nature and volume of the loan portfolio, including new types of lending, • Changes in volume and severity of past due loans, the volume of nonaccrual loans and the volume and severity of adversely classified or graded loans and • The existence and effect of concentrations of credit, and changes in the level of such concentrations. For loans risk graded as watch or worse, progressively higher potential loss factors are applied based on a migration analysis of risk grading and net charge-offs. The following tables summarize the allocation of the ALLL as well as the activity in the ALLL attributed to various segments in the loan portfolio as of and for the periods indicated: Three Months Ended September 30, 2019 Commercial and industrial Franchise Commercial owner occupied SBA Agribusiness Commercial non-owner occupied Multi-family One-to-four family Construction Farmland Land Consumer loans Total (dollars in thousands) Balance, March 31, 2019 $ 11,031 $ 6,765 $ 1,490 $ 3,363 $ 2,765 $ 1,765 $ 705 $ 704 $ 4,750 $ 809 $ 658 $ 221 $ 35,026 Charge-offs (290 ) (995 ) — (143 ) — (86 ) — — — — — (11 ) (1,525 ) Recoveries 54 — 8 62 — — — 1 — — — 9 134 Provisions for (reduction in) loan losses (265 ) 963 228 1,099 (399 ) 199 10 (14 ) (592 ) 29 (25 ) 132 1,365 Balance, June 30, 2019 $ 10,530 $ 6,733 $ 1,726 $ 4,381 $ 2,366 $ 1,878 $ 715 $ 691 $ 4,158 $ 838 $ 633 $ 351 $ 35,000 Nine Months Ended September 30, 2019 Commercial and industrial Franchise Commercial owner occupied SBA Agribusiness Commercial non-owner occupied Multi-family One-to-four family Construction Farmland Land Consumer loans Total (dollars in thousands) Balance, December 31, 2018 $ 10,821 $ 6,500 $ 1,386 $ 4,288 $ 3,283 $ 1,604 $ 725 $ 805 $ 5,166 $ 503 $ 772 $ 219 $ 36,072 Charge-offs (985 ) (2,531 ) — (1,362 ) — (574 ) — — — — — (16 ) (5,468 ) Recoveries 168 — 31 66 — — — 2 — — — 10 277 Provisions for (reduction in) loan losses 526 2,764 309 1,389 (917 ) 848 (10 ) (116 ) (1,008 ) 335 (139 ) 138 4,119 Balance, September 30, 2019 $ 10,530 $ 6,733 $ 1,726 $ 4,381 $ 2,366 $ 1,878 $ 715 $ 691 $ 4,158 $ 838 $ 633 $ 351 $ 35,000 Amount of allowance attributed to: Specifically evaluated impaired loans $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — General portfolio allocation 10,530 6,733 1,726 4,381 2,366 1,878 715 691 4,158 838 633 351 35,000 Loans individually evaluated for impairment 2,950 16 1,406 2,586 6,903 777 — 371 — — — — 15,009 Specific reserves to total loans individually evaluated for impairment — % — % — % — % — % — % — % — % — % — % — % — % — % Loans collectively evaluated for impairment $ 1,230,988 $ 894,007 $ 1,677,482 $ 177,379 $ 112,730 $ 2,052,813 $ 1,611,904 $ 272,811 $ 478,961 $ 171,667 $ 30,717 $ 40,548 $ 8,752,007 General reserves to total loans collectively evaluated for impairment 0.86 % 0.75 % 0.10 % 2.47 % 2.10 % 0.09 % 0.04 % 0.25 % 0.87 % 0.49 % 2.06 % 0.87 % 0.40 % Total gross loans held for investment $ 1,233,938 $ 894,023 $ 1,678,888 $ 179,965 $ 119,633 $ 2,053,590 $ 1,611,904 $ 273,182 $ 478,961 $ 171,667 $ 30,717 $ 40,548 $ 8,767,016 Total allowance to gross loans held for investment 0.85 % 0.75 % 0.10 % 2.43 % 1.98 % 0.09 % 0.04 % 0.25 % 0.87 % 0.49 % 2.06 % 0.87 % 0.40 % Three Months Ended September 30, 2018 Commercial and industrial Franchise Commercial owner occupied SBA Agribusiness Commercial non-owner occupied Multi-family One-to-four family Construction Farmland Land Consumer loans Total (dollars in thousands) Balance, March 31, 2018 $ 10,164 $ 6,181 $ 1,137 $ 2,575 $ 2,694 $ 1,450 $ 563 $ 698 $ 4,809 $ 405 $ 972 $ 99 $ 31,747 Charge-offs (100 ) — — (44 ) — — — — — — — (85 ) (229 ) Recoveries 120 — 8 8 — — — — — — — 6 142 Provisions for (reduction in) loan losses 200 151 68 288 871 33 60 21 11 (30 ) (104 ) 77 1,646 Balance, June 30, 2018 $ 10,384 $ 6,332 $ 1,213 $ 2,827 $ 3,565 $ 1,483 $ 623 $ 719 $ 4,820 $ 375 $ 868 $ 97 $ 33,306 Nine Months Ended September 30, 2018 Commercial and industrial Franchise Commercial owner occupied SBA Agribusiness Commercial non-owner occupied Multi-family One-to-four family Construction Farmland Land Consumer loans Total (dollars in thousands) Balance, December 31, 2017 $ 9,721 $ 5,797 $ 767 $ 2,890 $ 1,291 $ 1,266 $ 607 $ 803 $ 4,569 $ 137 $ 993 $ 95 $ 28,936 Charge-offs (1,011 ) — — (100 ) — — — — — — — (137 ) (1,248 ) Recoveries 283 — 32 43 — — — 1 — — — 7 366 Provisions for (reduction in) loan losses 1,391 535 414 (6 ) 2,274 217 16 (85 ) 251 238 (125 ) 132 5,252 Balance, September 30, 2018 $ 10,384 $ 6,332 $ 1,213 $ 2,827 $ 3,565 $ 1,483 $ 623 $ 719 $ 4,820 $ 375 $ 868 $ 97 $ 33,306 Amount of allowance attributed to: Specifically evaluated impaired loans $ — $ — $ — $ 250 $ — $ — $ — $ — $ — $ — $ — $ — $ 250 General portfolio allocation 10,384 6,332 1,213 2,577 3,565 1,483 623 719 4,820 375 868 97 33,056 Loans individually evaluated for impairment 1,027 209 — 2,748 — 1,290 589 1,388 — — 4 13 7,268 Specific reserves to total loans individually evaluated for impairment — % — % — % 9.10 % — % — % — % — % — % — % — % — % 3.44 % Loans collectively evaluated for impairment $ 1,358,814 $ 735,157 $ 1,675,528 $ 190,739 $ 133,241 $ 1,929,875 $ 1,554,103 $ 375,229 $ 504,708 138,479 $ 49,988 $ 114,723 $ 8,760,584 General reserves to total loans collectively evaluated for impairment 0.76 % 0.86 % 0.07 % 1.35 % 2.68 % 0.08 % 0.04 % 0.19 % 0.96 % 0.27 % 1.74 % 0.08 % 0.38 % Total gross loans held for investment $ 1,359,841 $ 735,366 $ 1,675,528 $ 193,487 $ 133,241 $ 1,931,165 $ 1,554,692 $ 376,617 $ 504,708 138,479 $ 49,992 $ 114,736 $ 8,767,852 Total allowance to gross loans held for investment 0.76 % 0.86 % 0.07 % 1.46 % 2.68 % 0.08 % 0.04 % 0.19 % 0.96 % 0.27 % 1.74 % 0.08 % 0.38 %

Subordinated Debentures

Subordinated Debentures	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Subordinated Debentures	Subordinated Debentures In August 2014, the Corporation issued $60.0 million in aggregate principal amount of 5.75% Subordinated Notes Due 2024 (the “Notes I”) in a private placement transaction to institutional accredited investors (the “Private Placement”). The Notes I bear interest at an annual fixed rate of 5.75% , with the first interest payment on the Notes occurring on March 3, 2015, and interest to be paid semiannually each March 3rd and September 3rd until September 3, 2024. At September 30, 2019 , the carrying value of the Notes I was $59.4 million , net of unamortized debt issuance cost of $598,000 . As of September 30, 2019 , the Notes I qualify as Tier 2 Capital. Principal and interest are due upon early redemption. In May 2019, the Corporation issued $125.0 million in aggregate principal amount of 4.875% Fixed-to-Floating Rate Subordinated Notes due May 15, 2029 (the “Notes II”), at a public offering price equal to 100% of the aggregate principal amount of the Notes II. The Company may redeem the Notes II on or after May 15, 2024. From and including the issue date, but excluding May 15, 2024, the Notes II will bear interest at an initial fixed rate of 4.875% per annum, payable semi-annually. From and including May 15, 2024, but excluding the maturity date or the date of earlier redemption, the Notes II will bear interest at a floating rate equal to the then-current three-month LIBOR plus a spread of 2.50% per annum, payable quarterly in arrears. At September 30, 2019 , the carrying value of the Notes II was $122.6 million , net of unamortized debt issuance cost of $2.4 million . At September 30, 2019 , the Notes II qualify as Tier 2 Capital. Principal and interest are due upon early redemption at any time, including prior to May 15, 2024 at our option, in whole but not in part, under the occurrence of special events defined within the trust indenture. In connection with the Private Placement, the Corporation obtained ratings from Kroll Bond Rating Agency (“KBRA”). KBRA assigned investment grade ratings of BBB+ and BBB for the Corporation’s senior unsecured debt and subordinated debt, respectively, and a senior deposit rating of A- for the Bank. KBRA reaffirmed these ratings in April 2019. In March 2004, the Corporation issued $10.3 million of Floating Rate Junior Subordinated Deferrable Interest Debentures (the “Subordinated Debentures”), due and payable on April 6, 2034, to PPBI Trust I, a statutory trust created under the laws of the State of Delaware. The Subordinated Debentures were subject to early redemption, in part or whole, on or after April 7, 2009 at the option of the Corporation, at par. The Corporation also purchased a 3% minority interest totaling $310,000 in PPBI Trust I. The balance of equity of PPBI Trust I was comprised of mandatorily redeemable securities (“Trust Preferred Securities”) and was included in the Corporation’s other assets category. PPBI Trust I sold $10.0 million of Trust Preferred Securities to investors in a private offering. On July 8, 2019, the Company used a portion of the proceeds from the issuance of the Notes II to redeem all $10.3 million outstanding principal amount of Subordinated Debentures. Prior to redemption, the Subordinated Debentures carried an interest rate of three-month LIBOR plus 2.75% per annum, for an effective rate of 5.35% per annum. The Subordinated Debentures were called at par, plus accrued and unpaid interest thereon through the date of redemption, for an aggregate amount of $10.4 million , and PPBI Trust I was dissolved. On April 1, 2017, as part of the Heritage Oaks Bancorp (“HEOP”) acquisition, the Corporation assumed $5.2 million of floating rate junior subordinated debt securities associated with Heritage Oaks Capital Trust II. Interest is payable quarterly at three-month LIBOR plus 1.72% per annum, for an effective rate of 4.04% per annum as of September 30, 2019 . At September 30, 2019 , the carrying value of these debentures was $4.0 million , which reflects purchase accounting fair value adjustments of $1.2 million . The Corporation also assumed $3.1 million and $5.2 million of floating rate junior subordinated debt associated with Mission Community Capital Trust I and Santa Lucia Bancorp (CA) Capital Trust, respectively. At September 30, 2019 , the carrying value of these debentures of Mission Community Capital Trust I and Santa Lucia Bancorp (CA) Capital Trust were $2.8 million and $3.9 million , respectively, which reflects purchase accounting fair value adjustments of $290,000 and $1.3 million , respectively. Interest is payable quarterly at three-month LIBOR plus 2.95% per annum, for an effective rate of 5.25% per annum as of September 30, 2019 for Mission Community Capital Trust I. Interest is payable quarterly at three-month LIBOR plus 1.48% per annum, for an effective rate of 3.78% per annum as of September 30, 2019 for Santa Lucia Bancorp (CA) Capital Trust. These three debentures are callable by the Corporation at par. On November 1, 2017, as part of the Plaza acquisition, the Corporation assumed three subordinated notes totaling $25 million at a fixed interest rate of 7.125% payable in arrears on a quarterly basis. The notes have a maturity date of June 26, 2025 and are also redeemable in whole or in part beginning on June 26, 2020 at an amount equal to 103.0% of principal plus accrued unpaid interest. The redemption price decreases 50 basis points each subsequent year. At September 30, 2019 , the carrying value of these subordinated notes was $25.1 million , which reflects purchase accounting fair value adjustments of $139,000 . On July 1, 2018, as part of the Grandpoint acquisition, the Corporation assumed $5.2 million of floating rate junior subordinated debt securities, due and payable on September 17, 2033, associated with First Commerce Bancorp Statutory Trust I, a statutory business trust created under the laws of the State of Connecticut. On September 17, 2019, the Company used a portion of the proceeds from the issuance of the Notes II in May 2019 to redeem all $5.2 million outstanding principal amount of these floating rate junior subordinated debt securities at par, plus accrued and unpaid interest thereon through the date of redemption, for an aggregate amount of $5.2 million . Prior to redemption, the junior subordinated debt securities carried an interest rate of three-month LIBOR plus 2.95% per annum, for an effective rate of 5.36% per annum. The Company recorded a loss on early debt extinguishment of $214,000 related to purchase accounting fair value adjustments, and First Commerce Bancorp Statutory Trust I was dissolved. The Corporation is not allowed to consolidate any trust preferred securities into the Company’s consolidated financial statements. The resulting effect on the Company’s consolidated financial statements is to report only the subordinated debentures relating to trust preferred securities as a component of the Company’s liabilities. The redemption of Tier 1 capital instruments associated with PPBI Trust I and First Commerce Bancorp Statutory Trust I during the three months ended September 30, 2019 reduced the Company’s Tier 1 capital by a total of $14.7 million . The Company’s regulatory capital ratios continued to exceed regulatory minimums to be well-capitalized and the fully phased-in capital conservation buffer, upon these redemptions.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share In February 2019, the Company’s Compensation Committee of Board of Directors reviewed the various forms of outstanding equity awards, including restricted stock and restrict stock units (“RSUs”), and approved that unvested restricted stock awards will be considered participating securities. As a result of the different treatment of unvested restricted stock and unvested RSUs, beginning in 2019, earnings per common share is computed using the two-class method. Under the two-class method, distributed and undistributed earnings allocable to participating securities are deducted from net income to determine net income allocable to common shareholders, which is then used in the numerator of both basic and diluted earnings per share calculations. Basic earnings per common share is computed by dividing net income allocable to common shareholders by the weighted average number of common shares outstanding for the reporting period, excluding outstanding participating securities. Diluted earnings per common share is computed by dividing net income allocable to common shareholders by the weighted average number of common shares outstanding over the reporting period, adjusted to include the effect of potentially dilutive common shares, but excludes awards considered participating securities. The computation of diluted earnings per common share excludes the impact of the assumed exercise or issuance of securities that would have an anti-dilutive effect. The following tables set forth the Company’s earnings per share calculations for the periods indicated: Three Months Ended September 30, 2019 June 30, 2019 September 30, 2018 (dollars in thousands, except per share data) Basic Net income $ 41,375 $ 38,527 $ 28,392 Less: Earnings allocated to participating securities (432 ) (444 ) — Net income allocated to common stockholders $ 40,943 $ 38,083 $ 28,392 Weighted average common shares outstanding 59,293,218 61,308,046 61,727,030 Basic earnings per common share $ 0.69 $ 0.62 $ 0.46 Diluted Net income allocated to common stockholders $ 40,943 $ 38,083 $ 28,392 Weighted average common shares outstanding 59,293,218 61,308,046 61,727,030 Diluted effect of share-based compensation 377,637 353,727 634,774 Weighted average diluted common shares 59,670,855 61,661,773 62,361,804 Diluted earnings per common share $ 0.69 $ 0.62 $ 0.46 Nine Months Ended September 30, 2019 September 30, 2018 (dollars in thousands, except per share data) Basic Net income $ 118,620 $ 83,697 Less: Earnings allocated to participating securities (1,223 ) — Net income allocated to common stockholders $ 117,397 $ 83,697 Weighted average common shares outstanding 60,853,081 51,282,533 Basic earnings per common share $ 1.93 $ 1.63 Diluted Net income allocated to common stockholders $ 117,397 $ 83,697 Weighted average common shares outstanding 60,853,081 51,282,533 Diluted effect of share-based compensation 348,777 683,114 Weighted average diluted common shares 61,201,858 51,965,647 Diluted earnings per common share $ 1.92 $ 1.61 For the three and nine months ended September 30, 2019 , there were no RSUs or stock options that were anti-dilutive.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The fair value of an asset or liability is the exchange price that would be received to sell that asset or paid to transfer that liability (exit price) in an orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for such asset or liability. In estimating fair value, the Company utilizes valuation techniques that are consistent with the market approach, the income approach, and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability. ASC Topic 825 requires disclosure of the fair value of financial assets and financial liabilities, including both those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis and a non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value are discussed below. In accordance with accounting guidance, the Company groups its financial assets and financial liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described as follows: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2 - Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, prepayment speeds, volatilities, etc.) or model-based valuation techniques where all significant assumptions are observable, either directly or indirectly, in the market. Level 3 - Valuation is generated from model-based techniques where one or more significant inputs are not observable, either directly or indirectly, in the market. These unobservable assumptions reflect the Company’s own estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques may include use of matrix pricing, discounted cash flow models, and similar techniques. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature, and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the fair values presented. Management uses its best judgment in estimating the fair value of the Company’s financial instruments; however, there are inherent limitations in any estimation technique. A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Management maximizes the use of observable inputs and attempts to minimize the use of unobservable inputs when determining fair value measurements. Estimated fair values are disclosed for financial instruments for which it is practicable to estimate fair value. These estimates are made at a specific point in time based on relevant market data and information about the financial instruments. These estimates do not reflect any premium or discount that could result from offering the Company’s entire holdings of a particular financial instrument for sale at one time, nor do they attempt to estimate the value of anticipated future business related to the instruments. In addition, the tax ramifications related to the realization of unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in any of these estimates. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following is a description of both the general and specific valuation methodologies used to measure financial assets and liabilities on a recurring basis, as well as the general classification of these instruments pursuant to the fair value hierarchy. Investment securities – Investment securities are generally valued based upon quotes obtained from independent third-party pricing services, which use evaluated pricing applications and model processes. Observable market inputs, such as, benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data are considered as part of the evaluation. The inputs are related directly to the security being evaluated, or indirectly to a similarly situated security. Market assumptions and market data are utilized in the valuation models. The Company reviews the market prices provided by the third-party pricing service for reasonableness based on the Company’s understanding of the market place and credit issues related to the securities. The Company has not made any adjustments to the market quotes provided by them and, accordingly, the Company categorized its investment portfolio within Level 2 of the fair value hierarchy. Derivative assets and liabilities – The Company originates a variable rate loan and enters into a variable-to-fixed interest rate swap with the customer. The Company also enters into an offsetting swap with a correspondent bank. These back-to-back swap agreements are intended to offset each other and allow the Company to originate a variable rate loan, while providing a contract for fixed interest payments for the customer. The net cash flow for the Company is equal to the interest income received from a variable rate loan originated with the customer. The fair value of these derivatives is based on a market standard discounted cash flow approach. Due to the observable nature of the inputs used in deriving the fair value of these derivative contracts, the valuation of interest rate swaps is classified as Level 2. The following fair value hierarchy table presents information about the Company’s financial assets and liabilities measured at fair value on a recurring basis at the dates indicated: September 30, 2019 Fair Value Measurement Using Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) Financial assets Investment securities available-for-sale: U.S. Treasury $ — $ 64,190 $ — $ 64,190 Agency — 261,558 — 261,558 Corporate — 127,802 — 127,802 Municipal bonds — 294,099 — 294,099 Collateralized mortgage obligation — 10,642 — 10,642 Mortgage-backed securities — 498,364 — 498,364 Total securities available-for-sale $ — $ 1,256,655 $ — $ 1,256,655 Derivative assets $ — $ 2,853 $ — $ 2,853 Financial liabilities Derivative liabilities $ — $ 2,853 $ — $ 2,853 December 31, 2018 Fair Value Measurement Using Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) Financial assets Investment securities available-for-sale: U.S. Treasury $ — $ 60,912 $ — $ 60,912 Agency — 130,070 — 130,070 Corporate — 103,543 — 103,543 Municipal bonds — 238,630 — 238,630 Collateralized mortgage obligation — 24,338 — 24,338 Mortgage-backed securities — 545,729 — 545,729 Total securities available-for-sale $ — $ 1,103,222 $ — $ 1,103,222 Derivative assets $ — $ 1,681 $ — $ 1,681 Financial liabilities Derivative liabilities $ — $ 1,681 $ — $ 1,681 Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Impaired Loans and Other Real Estate Owned – A loan is considered impaired when it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement. Impairment is measured based on the fair value of the underlying collateral or the discounted expected future cash flows. The Company measures impairment on all nonaccrual loans for which it has reduced the principal balance to the value of the underlying collateral less the anticipated selling cost. OREO are recorded at estimated fair value less the costs to sell at the time of foreclosure or at the lower of cost or estimated fair value less the costs to sell subsequent to acquisition. The fair value of impaired loans and other real estate owned were determined using Level 3 assumptions, and represents impaired loan and other real estate owned balances for which a specific reserve has been established or on which a write down has been taken. Generally, the Company obtains third party appraisals (or property valuations) and/or collateral audits in conjunction with internal analysis based on historical experience on its impaired loans and other real estate owned to determine fair value. In determining the net realizable value of the underlying collateral for impaired loans, the Company will then discount the valuation to cover both market price fluctuations and selling costs the Company expected would be incurred in the event of foreclosure. In addition to the discounts taken, the Company’s calculation of net realizable value considered any other senior liens in place on the underlying collateral. At September 30, 2019 and December 31, 2018, substantially all the Company’s impaired loans were evaluated based on the fair value of their underlying collateral based upon the most recent appraisal available to management. The Company completed partial charge-offs on certain impaired loans individually evaluated for impairment based on recent real estate appraisals and released the related specific reserves during the nine months ended September 30, 2019 . The Company has recorded no specific reserve on loans deemed impaired at September 30, 2019 . The following table presents our assets measured at fair value on a nonrecurring basis at September 30, 2019 and December 31, 2018. September 30, 2019 Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) Financial assets Impaired loans $ — $ — $ 16 $ 16 December 31, 2018 Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) Financial assets Impaired loans $ — $ — $ 1,445 $ 1,445 Fair Values of Financial Instruments The fair value estimates presented herein are based on pertinent information available to management as of the dates indicated, representing an exit price. At September 30, 2019 Carrying Amount Level 1 Level 2 Level 3 Estimated Fair Value (dollars in thousands) Assets: Cash and cash equivalents $ 427,715 $ 427,715 $ — $ — $ 427,715 Interest-bearing time deposits with financial institutions 2,711 2,711 — — 2,711 Investments held-to-maturity 40,433 — 41,302 — 41,302 Investment securities available-for-sale 1,256,655 — 1,256,655 — 1,256,655 Loans held for sale 7,092 — 7,637 — 7,637 Loans held for investment, net 8,757,476 — — 8,758,265 8,758,265 Derivative asset 2,853 — 2,853 — 2,853 Accrued interest receivable 38,603 38,603 — — 38,603 Liabilities: Deposit accounts 8,859,288 7,515,400 1,345,436 — 8,860,836 FHLB advances 604,558 — 604,980 — 604,980 Subordinated debentures 217,825 — 237,624 — 237,624 Derivative liability 2,853 — 2,853 — 2,853 Accrued interest payable 6,537 6,537 — — 6,537 At December 31, 2018 Carrying Amount Level 1 Level 2 Level 3 Estimated Fair Value (dollars in thousands) Assets: Cash and cash equivalents $ 203,406 $ 203,406 $ — $ — $ 203,406 Interest-bearing time deposits with financial institutions 6,143 6,143 — — 6,143 Investments held-to-maturity 45,210 — 44,672 — 44,672 Investment securities available-for-sale 1,103,222 — 1,103,222 — 1,103,222 Loans held for sale 5,719 — 6,072 — 6,072 Loans held for investment, net 8,836,818 — — 8,697,594 8,697,594 Derivative asset 1,929 — 1,681 — 1,681 Accrued interest receivable 37,837 37,837 — — 37,837 Liabilities: Deposit accounts 8,658,351 7,247,673 1,403,524 — 8,651,197 FHLB advances 667,606 — 666,864 — 666,864 Other borrowings 75 — 75 — 75 Subordinated debentures 110,313 — 115,613 — 115,613 Derivative liability 1,929 — 1,681 — 1,681 Accrued interest payable 3,255 3,255 — — 3,255

Derivative Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments From time to time, the Company enters into interest rate swap agreements with certain borrowers to assist them in mitigating their interest rate risk exposure associated with the loans they have with the Company. At the same time, the Company enters into identical interest rate swap agreements with another financial institution to mitigate the Company’s interest rate risk exposure associated with the swap agreements it enters into with its borrowers. The Company had swaps with matched terms with an aggregate notional amount of $48.9 million and a fair value of $2.9 million at September 30, 2019 compared with an aggregate notional amount of $57.5 million and a fair value of $1.7 million at December 31, 2018 . The fair value of these agreements are determined through a third party valuation model used by the Company’s counterparty bank, which uses observable market data such as cash LIBOR rates, prices of Eurodollar future contracts and market swap rates. The fair values of these swaps are recorded as components of other assets and other liabilities in the Company’s condensed consolidated balance sheet. Changes in the fair value of these swaps, which occur due to changes in interest rates, are recorded in the Company’s income statement as a component of noninterest income. Since the terms of the swap agreements between the Company and its borrowers have been matched with the terms of swap agreements with another financial institution, the adjustments for the change in their fair value offset each other in noninterest income. Although changes in the fair value of swap agreements between the Company and borrowers and the Company and other financial institutions offset each other, changes in the credit risk of these counterparties may result in a difference in the fair value of these swap agreements. Offsetting swap agreements the Company has with other financial institutions are collateralized with cash, and swap agreements with borrowers are secured by the collateral arrangements for the underlying loans these borrowers have with the Company. During the nine months ended September 30, 2019 and 2018 , there were no losses recorded on swap agreements attributable to the change in credit risk associated with a counterparty. All interest rate swap agreements entered into by the Company as of September 30, 2019 and December 31, 2018 are not designated as hedging instruments. The following tables summarize the Company's derivative instruments, included in “other assets” and “other liabilities” in the consolidated statements of financial condition: September 30, 2019 Derivative Assets Derivative Liabilities Notional Fair Value Notional Fair Value (dollars in thousands) Derivative instruments not designated as hedging instruments: Interest rate swap contracts $ 48,932 $ 2,853 $ 48,932 $ 2,853 Total derivative instruments $ 48,932 $ 2,853 $ 48,932 $ 2,853 December 31, 2018 Derivative Assets Derivative Liabilities Notional Fair Value Notional Fair Value (dollars in thousands) Derivative instruments not designated as hedging instruments: Interest rate swap contracts $ 57,502 $ 1,681 $ 57,502 $ 1,681 Total derivative instruments $ 57,502 $ 1,681 $ 57,502 $ 1,681

Balance Sheet Offsetting

Balance Sheet Offsetting	9 Months Ended
	Sep. 30, 2019
Offsetting [Abstract]
Balance Sheet Offsetting	Balance Sheet Offsetting Derivative financial instruments may be eligible for offset in the consolidated balance sheets, such as those subject to enforceable master netting arrangements or a similar agreement. Under these agreements, the Company has the right to net settle multiple contracts with the same counterparty. The Company offers an interest rate swap product to qualified customers, which are then paired with derivative contracts the Company enters into with a counterparty bank. While derivative contracts entered into with counterparty banks may be subject to enforceable master netting agreements, derivative contracts with customers may not be subject to enforceable master netting arrangements. Financial instruments that are eligible for offset in the consolidated statements of financial condition as of September 30, 2019 are presented in the table below: Gross Amounts Not Offset in the Consolidated Gross Amounts Recognized Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts Presented in the Consolidated Balance Sheets Financial Instruments Cash Collateral (1) Net Amount (dollars in thousands) September 30, 2019 Financial assets: Derivatives not designated as hedging instruments $ 2,853 $ — $ 2,853 $ — $ — $ 2,853 Total $ 2,853 $ — $ 2,853 $ — $ — $ 2,853 Financial liabilities: Derivatives not designated as hedging instruments $ 2,853 $ — $ 2,853 $ — $ (2,750 ) $ 103 Total $ 2,853 $ — $ 2,853 $ — $ (2,750 ) $ 103 (1) Represents cash collateral pledged with counterparty bank. Financial instruments that are eligible for offset in the consolidated statements of financial condition as of December 31, 2018 are presented in the table below: Gross Amounts Not Offset in the Consolidated Gross Amounts Recognized Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts Presented in the Consolidated Balance Sheets Financial Instruments Cash Collateral (1) Net Amount (dollars in thousands) December 31, 2018 Financial assets: Derivatives not designated as hedging instruments $ 2,177 $ (496 ) $ 1,681 $ — $ — $ 1,681 Total $ 2,177 $ (496 ) $ 1,681 $ — $ — $ 1,681 Financial liabilities: Derivatives not designated as hedging instruments $ 1,681 $ — $ 1,681 $ — $ — $ 1,681 Total $ 1,681 $ — $ 1,681 $ — $ — $ 1,681 (1) Represents cash collateral held with counterparty bank.

Leases

Leases	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases	Leases The Company accounts for its leases in accordance with ASC 842, which was implemented on January 1, 2019, and requires the Company to record liabilities for future lease obligations as well as assets representing the right to use the underlying leased asset. The Company’s leases primarily represent future obligations to make payments for the use of buildings or space for its operations. Liabilities to make future lease payments are recorded in accrued expenses and other liabilities, while right-of-use assets are recorded in other assets in the Company’s consolidated balance sheets. At September 30, 2019 , all of the Company’s leases were classified as operating leases or short-term leases. Liabilities to make future lease payments and right of use assets are recorded for operating leases and not short-term leases. These liabilities and right-of-use assets are determined based on the total contractual base rents for each lease, which include options to extend or renew each lease, where applicable, and where the Company believes it has an economic incentive to extend or renew the lease. Future contractual base rents are discounted using the rate implicit in the lease or using the Company’s estimated incremental borrowing rate if the rate implicit in the lease is not readily determinable. For leases that contain variable lease payments, the Company assumes future lease payment escalations based on a lease payment escalation rate specified in the lease or the specified index rate observed at the time of lease commencement. Liabilities to make future lease payments are accounted for using the interest method, being reduced by periodic contractual lease payments net of periodic interest accretion. Right-of-use assets for operating leases are amortized over the term of the associated lease by amounts that represent the difference between periodic straight-line lease expense and periodic interest accretion in the related liability to make future lease payments. For the three and nine months ended September 30, 2019 , lease expense totaled $3.5 million and $10.3 million , respectively, and was recorded in premises and occupancy expense in the consolidated statements of income. For the three and nine months ended September 30, 2019 , lease expense attributable to operating leases totaled approximately $2.9 million and $8.4 million , respectively. Lease expense attributable to short-term leases for the three and nine ended September 30, 2019 totaled approximately $575,000 and $1.9 million , respectively. Short-term leases are leases that have a term of 12 months or less at commencement. The following table presents supplemental information related to operating leases as of the period indicated: September 30, 2019 (dollars in thousands) Balance Sheet: Operating lease right of use assets $ 42,065 Operating lease liabilities 44,973 Cash Flows: Operating cash flows from operating leases 8,786 The following table provides information related to minimum contractual lease payments and other information associated with the Company’s leases as of September 30, 2019 : 2019 2020 2021 2022 2023 Thereafter Total (dollars in thousands) Contractual base rents (1) : Operating leases $ 2,798 $ 9,354 $ 9,773 $ 9,327 $ 8,346 $ 13,619 $ 53,217 Short-term leases 218 79 — — — — 297 Total contractual base rents $ 3,016 $ 9,433 $ 9,773 $ 9,327 $ 8,346 $ 13,619 $ 53,514 Total liability to make lease payments $ 44,973 Difference in undiscounted and discounted future lease payments $ 8,541 Weighted average discount rate 6.26 % Weighted average remaining lease term (years) 5.5 (1) Contractual base rents reflect options to extend and renewals, and do not include property taxes and other operating expenses due under respective lease agreements. The Company from time to time leases portions of space it owns to other parties. Income received from these transactions is recorded on a straight-line basis over the term of the sublease. For the three months ended September 30, 2019 and 2018 , rental income totaled $25,000 and $140,000 , respectively. For the nine months ended September 30, 2019 and 2018 , rental income totaled $116,000 and $389,000 , respectively. The following table provides information related to minimum contractual lease payments for the periods indicated below as of December 31, 2018 (1) : 2019 2020 2021 2022 2023 Thereafter Total (dollars in thousands) Minimum contractual lease payments $ 11,468 $ 10,869 $ 10,133 $ 9,296 $ 8,124 $ 10,518 $ 60,408 (1) Contractual base rents in the table above are reflective of future lease obligations under ASC 840, prior to the implementation of ASC 842. The amounts in the table above do not reflect extensions or renewals and do not include property taxes and other operating expenses due under respective lease agreements. The amounts in the table above also reflect future lease obligations for certain leases that had not yet commenced as of December 31, 2018.

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition The Company earns revenue from a variety of sources. The Company’s principal source of revenue is interest income on loans, investment securities and other interest earning assets, while the remainder of the Company’s revenue is earned from a variety of fees, service charges, gains and losses, and other income, all of which are classified as noninterest income. Revenue from interest on loans and investment securities is accounted for on an accrual basis using the interest method, while revenue from other sources is accounted for under other applicable U.S. GAAP as well as ASC 606 - Revenue from Contracts with Customers . Revenue streams within the scope of and accounted for under ASC 606 include: service charges and fees on deposit accounts, debit card interchange fees, fees from other services the Company provides its customers and gains and losses from the sale of other real estate owned and property, premises and equipment. ASC 606 requires revenue to be recognized when the Company satisfies the related performance obligations by transferring to the customer a good or service. The recognition of revenue under ASC 606 requires the Company to first identify the contract with the customer, identify the associated performance obligations, determine the transaction price, allocate the transaction price to the performance obligations and finally recognize revenue when the performance obligations have been satisfied and the good or service has been transferred. The majority of the Company’s contracts with customers associated with revenue streams that are within the scope of ASC 606 are considered short-term in nature, can be canceled at any time by the customer or the Company without penalty, such as a deposit account agreement, and are satisfied at a point in time. These revenue streams are included in noninterest income. The following tables provide a summary of the Company’s revenue streams, including those that are within the scope of ASC 606 and those that are accounted for under other applicable U.S. GAAP: Three Months Ended September 30, 2019 June 30, 2019 September 30, 2018 Within Scope (1) Out of Scope (2) Within Scope (1) Out of Scope (2) Within Scope (1) Out of Scope (2) (dollars in thousands) Interest income: Loans $ — $ 122,974 $ — $ 121,860 $ — $ 119,271 Investment securities and other interest-earning assets — 9,630 — 10,554 — 9,605 Total interest income — 132,604 — 132,414 — 128,876 Noninterest income: Loan servicing fees — 546 — 409 — 400 Service charges on deposit accounts 1,440 — 1,441 — 1,570 — Other service fee income 360 — 363 — 317 — Debit card interchange income 421 — 1,145 — 1,061 — Earnings on bank-owned life insurance — 861 — 851 — 1,270 Net gain from sales of loans — 2,313 — 902 — 2,029 Net gain from sales of investment securities — 4,261 — 212 — 1,063 Other income 592 636 544 457 (446 ) 976 Total noninterest income 2,813 8,617 3,493 2,831 2,502 5,738 Total revenues $ 2,813 $ 141,221 $ 3,493 $ 135,245 $ 2,502 $ 134,614 (1) Revenues from contracts with customers accounted for under ASC 606. (2) Revenues not within the scope of ASC 606 and accounted for under other applicable U.S. GAAP requirements. Nine Months Ended September 30, 2019 September 30, 2018 Within Scope (1) Out of Scope (2) Within Scope (1) Out of Scope (2) (dollars in thousands) Interest income: Loans $ — $ 366,310 $ — $ 289,069 Investment securities and other interest-earning assets — 29,951 — 23,333 Total interest income — 396,261 — 312,402 Noninterest income: Loan servicing fees — 1,353 — 1,037 Service charges on deposit accounts 4,211 — 3,777 — Other service fee income 1,079 — 632 — Debit card interchange income 2,637 — 3,187 — Earnings on bank-owned life insurance — 2,622 — 2,498 Net gain from sales of loans — 4,944 — 8,830 Net gain from sales of investment securities — 4,900 — 1,399 Other income 1,328 2,361 84 2,613 Total noninterest income 9,255 16,180 7,680 16,377 Total revenues $ 9,255 $ 412,441 $ 7,680 $ 328,779 (1) Revenues from contracts with customers accounted for under ASC 606. (2) Revenues not within the scope of ASC 606 and accounted for under other applicable U.S. GAAP requirements. The following provides information concerning the major components of the Company’s revenue: Interest Income Interest income is comprised of interest on loans, investment securities and other interest-earning assets. Interest is recognized using the interest method, which reflects the contractual yield on loans and coupon yield for investment securities. These yields are adjusted for purchase discounts, premiums and net deferred loan origination fees/costs for newly originated loans. Loan Servicing Fees Loan servicing fees generally consist of fees related to servicing of loans for others, as well as the net impact of related serving asset amortization. ASC 606 stipulates that income streams generated through the transfer and servicing of financial instruments shall be accounted for under ASC 860 - Transfers and Servicing and is therefore excluded from the scope of ASC 606. Service Charges on Deposit Accounts and Other Service Fee Income Service charges on deposit accounts and other service fee income consists of periodic service charges on deposit accounts and transaction based fees such as those related to overdrafts, ATM charges and wire transfer fees. The majority of these revenues are accounted for under ASC 606. Performance obligations for periodic service charges on deposit accounts are typically short-term in nature and are generally satisfied on a monthly basis, while performance obligations for other transaction based fees are typically satisfied at a point in time (which may consist of only a few moments to perform the service or transaction) with no further obligations on behalf of the Company to the customer. Periodic service charges are generally collected monthly directly from the customer's deposit account, and at the end of a statement cycle, while transaction based service charges are typically collected at the time of or soon after the service is performed. Debit Card Interchange Income Debit card interchange fee income consists of transaction processing fees associated with customer debit card transactions processed through a payment network and are accounted for under ASC 606. These fees are earned each time a request for payment is originated by a customer debit cardholder at a merchant. In these transactions, the Company transfers funds from the debit cardholder’s account to a merchant through a payment network at the request of the debit cardholder by way of the debit card transaction. The related performance obligations are generally satisfied when the transfer of funds is complete, which is generally a point in time when the debit card transaction is processed. Debit card interchange fees are typically received and recorded as revenue on a daily basis. Earnings on Bank-Owned Life Insurance Earnings on bank-owned life insurance relates to the periodic increase in the cash surrender value of bank-owned life insurance policies on certain key employees of the Company for which the Company is the owner and beneficiary of the related policies. This revenue stream is excluded from the scope of ASC 606, and is accounted for under other applicable U.S. GAAP provisions (ASC 325-30). Gains and (Losses) from Sales of Loans and Investment Securities ASC 606 stipulates that gains and (losses) from the periodic sale of loans and investment securities are excluded from ASC 606 and are accounted for under other applicable U.S. GAAP provisions. Other Income Other income generally consists of recoveries on acquired loans, which were fully charged off and had no book value prior to their acquisition, and gains and (losses) on debt extinguishment. These revenue streams are excluded from the scope of ASC 606 and is accounted for under other applicable U.S. GAAP provisions. Other income also consists of other miscellaneous fees, which are accounted for under ASC 606; however, much like service charges on deposit accounts, these fees have performance obligations that are very short-term in nature and are typically satisfied at a point in time. Revenue is typically recorded at the time these fees are collected, which is generally upon the completion the related transaction or service provided. Other revenue streams that may be applicable to the Company include gains and losses from the sale of non-financial assets such as other real estate owned and property premises and equipment. The Company accounts for these revenue streams in accordance with ASC 610-20, which requires the Company to look to guidance in ASC 606 in the application of certain measurement and recognition concepts. The Company records gains and losses on the sale of non-financial assets when control of the asset has been surrendered to the buyer, which generally occurs at a specific point in time. Practical Expedient The Company also employs a practical expedient with respect to contract acquisition costs, which are generally capitalized and amortized into expense. These costs relate to expenses incurred directly attributable to the efforts to obtain a contract. The practical expedient allows the Company to immediately recognize contract acquisition costs in current period earnings when these costs would have been amortized over a period of one year or less. At September 30, 2019 , the Company did not have any material contract assets or liabilities in its consolidated financial statements related to revenue streams within the scope of ASC 606, and there were no material changes in those balances during the reporting period.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Quarterly Cash Dividend On October 18, 2019, the Corporation’s Board of Directors declared a cash dividend of $0.22 per share, payable on November 15, 2019 to shareholders of record on November 1, 2019. Redemption of Subordinated Notes On October 7, 2019, the Company used a portion of the proceeds from the issuance of the Notes II in May 2019 to redeem all $3.1 million outstanding principal amount of floating rate junior subordinated debt securities associated with Mission Community Capital Trust I, a statutory business trust created under the laws of the State of Delaware, assumed as part of the HEOP acquisition. Prior to redemption, the junior subordinated debt securities carried an interest rate of three-month LIBOR plus 2.95% per annum, for an effective rate of 5.25% per annum, and were scheduled to mature on October 7, 2033. The junior subordinated debt securities were called at par, plus accrued and unpaid interest, for an aggregate amount of $3.1 million , and the associated business trust was dissolved. The Company recorded a loss on early debt extinguishment of $290,000 related to purchase accounting fair value adjustments. For further detail on junior subordinated debt securities, see Note 8 to the Consolidated Financial Statements in this Form 10-Q.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Recently Issued Accounting Pronouncements	Accounting Standards Adopted in 2019 In March 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU” or “Update”) 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities . This Update amends guidance on the amortization period of premiums on certain purchased callable debt securities. The amendments shorten the amortization period of premiums on purchased callable debt securities to the earliest call date. This Update should be applied on a modified retrospective basis through a cumulative-effect adjustment to beginning retained earnings. The effective date of ASU 2017-08 is for interim and annual reporting periods beginning after December 15, 2018. The adoption of this standard did not have a material effect on the Company’s operating results or financial condition. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . This Update was issued to increase the transparency and comparability around lease obligations. Previously unrecorded off-balance sheet obligations and corresponding rights to use underlying leased assets are now recorded in the consolidated financial statements, accompanied by enhanced qualitative and quantitative disclosures in the notes to the consolidated financial statements. The Update is generally effective for public business entities in fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases (Topic 842): Targeted Improvements . ASU 2018-10 provides improvements related to ASU 2016-02 to increase stakeholders’ awareness of the amendments to Topic 842 and to expedite the improvements. The amendments affect narrow aspects of the guidance issued in ASU 2016-02. ASU 2018-11 allows entities adopting ASU 2016-02 to choose an additional transition method, under which an entity initially applies the accounting guidance for leases under Topic 842 at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Additionally, ASU 2018-11 allows an entity electing this additional transition method to continue to present comparative period financial statements in accordance with Topic 840 (current U.S. GAAP). ASU 2018-11 also allows lessors to not separate non-lease components from the associated lease component if certain conditions are met. The amendments in these updates became effective for annual periods as well as interim periods within those annual periods beginning after December 15, 2018. The Company elected to apply the transition provisions of Topic 842 using the alternative transition method whereby comparative periods are not restated. The Company also elected to adopt the “package” of practical expedients in its transition to Topic 842, as specified in Accounting Standard Codification (“ASC”) 842-10-65. The results of this policy election are that the Company reflected the provisions of Topic 842 in its consolidated financial statements for the first time as of and for the period ended March 31, 2019 (the period of adoption). The Company measured and recorded liabilities to make lease payments as well as right-of-use assets in the period of adoption for leases that existed as of the transition date, and will continue to present all comparative periods under Topic 840. Under this elected transition method, the Company is not required to reassess the following as part of its transition to Topic 842: (1) whether any expired or existing contracts contain leases, (2) lease classifications for any existing or expired leases and (3) initial direct costs for any existing leases. Additionally, the Company elected to apply the use of hindsight in its assessment of the term for its leases upon transition, which allows for consideration of the Company’s option to extend or terminate a lease. The Company adopted the provisions of Topic 842 on January 1, 2019, and in its transition to Topic 842, the Company initially recorded a liability to make future lease payments of approximately $45.7 million and right-of-use assets of approximately $43.8 million . The difference of $1.9 million is the accounting adjustments previously recorded under Topic 840 and Topic 805, as required by transition guidance in ASC 842-10-65. The Company was not required to record a cumulative effect adjustment to the opening balance of retained earnings as part of its transition to Topic 842. The Company’s evaluation of lease obligations and service agreements under the new standard included an assessment of the appropriate classification and related accounting of each lease agreement, a review of applicability of the new standard to existing service agreements and gathering all essential lease data to facilitate the application of the new standard. The Company’s review indicated that all of its leases are classified as operating leases or short-term leases. In accordance with the provisions of Topic 842, liabilities to make future lease payments and right-of-use assets are only recorded for leases that are not considered short-term (leases with an original term of greater than 12 months). The Company records expense for its leases on a straight-line basis in accordance with the requirements under Topic 842 for operating leases. The Company’s expense recognition for its operating leases (including short-term leases) under Topic 842 has not differed significantly from that recorded under Topic 840. Right-of-use assets for operating leases are amortized over the lease term, and liabilities to make future lease payments are accounted for using the interest method, both in accordance with Topic 842. Please also refer to Note 13 - Leases for additional information related to the Company’s leases. Recent Accounting Guidance Not Yet Effective In May 2019, the FASB issued ASU 2019-05, Financial Instruments - Credit Losses (Topic 326) - Targeted Transition Relief . This Update was issued to allow entities that have certain financial instruments within the scope of ASC 326-20, Financial Instruments - Credit Losses - Measured at Amortized Cost , to make an irrevocable election to elect the fair value option for those instruments in ASC 825-10, Financial Instruments - Overall upon the adoption of ASC 326, which for the Company is January 1, 2020. The fair value option is not applicable to held-to-maturity debt securities. The Company currently does not anticipate it will make this election upon the adoption of ASC 326. In April 2019, the FASB issued ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments . This Update was issued as part of an ongoing project on the FASB’s agenda for improving the Codification or correcting for its unintended application. The FASB issued this Update, which is specific to Updates: 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities , and 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. Improvements within this Update include: (1) Allow the measurement of credit losses on accrued interest receivable balances to be determined separately from the other components of the amortized cost basis of associated financial assets. (2) Allow entities to make an accounting policy election to not measure credit losses on accrued interest receivable balances if the entity writes off the uncollectable accrued interest balances in a timely manner through a reversal of interest income or through the recognition of credit loss expense, or both. (3) Allow entities to make an accounting policy election to present accrued interest receivable balances and any related allowance for credit losses separately from the associated financial assets on the balance sheet (not including them as part of the associated financial asset’s amortized cost). (4) Allow entities to elect a practical expedient to disclose separately the total amount of accrued interest included in the amortized cost basis as a single balance to meet certain disclosure requirements. (5) Require that entities reverse from earnings any allowance for credit losses or valuation allowance previously measured on a loan or debt security upon the reclassification of the loan or debt security from one classification or category to another (such as from held for investment to held for sale), and apply the applicable measurement guidance with the new classification or category. (6) Clarify that an entity should include an estimate for recoveries of amounts previously written off in its estimation of the allowance for credit losses. (7) Allow entities to use future interest rate environment projections in the determination of the allowance for credit losses under the discounted cash flow method. (8) Allow an entity to make an accounting policy election to adjust the effective interest rate used to discount expected future cash flows for expected prepayments on financial assets within the scope of ASC 326-20 and on available for sale debt securities within the scope of ASC 326-30 to appropriately isolate credit risk in the determination of the allowance for credit losses. (9) Clarify that an entity should consider, when determining the contractual term of a financial asset, extension or renewal options that are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the entity. (10) Clarify the guidance by specifically requiring that an entity re-measure an equity security without readily determinable fair value at fair value when an orderly transaction is identified for an identical or similar investment of the same issuer in accordance with Topic 820. That is, the amendments clarify that the measurement alternative is a nonrecurring fair value measurement. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. The Company is currently evaluating the effects of this Update on its financial statements and disclosures. In March 2019, the FASB issued ASU 2019-01, Leases (Topic 842): Codification Improvements. This Update provides clarification on certain aspects of an entity’s implementation of Topic 842 including those that relate to: (1) Determining the fair value of the underlying asset by lessors that are not manufacturers or dealers. The amendments related to this item carry forward from Topic 840 to Topic 842 an exception that allows lessors who are not manufacturers or dealers to use the cost of the underlying asset as its fair value. (2) Presentation on the statement of cash flows - sales-type and direct financing leases. The amendments related to this item clarify that all principal payments received on leases by lessors in sales-type or direct financing lease transactions should be reflected in investing activities for entities such as depository and lending institutions within in the scope of Topic 942. (3) Transition disclosures related to Topic 250, Accounting Changes and Error Corrections. The amendments related to this item clarify the FASB’s original intent by explicitly providing an exception to the paragraph 250-10-50-3 interim disclosure requirements in the Topic 842 transition disclosure requirements, which would otherwise require interim disclosures after the date of adoption of Topic 842 related to the impacts of the change on: (a) income from continuing operations, (b) net income, (c) any other financial statement line item and (d) any affected per-share amounts. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. Early adoption is permitted. The Company does not believe the effects of this ASU will have a material effect on the Company’s financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement . The amendments in this Update modify the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement . The following disclosure requirements for public companies were removed from Topic 820: • The amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy • The policy for timing of transfers between levels • The valuation processes for Level 3 fair value measurements The following disclosure requirements for public companies were modified in Topic 820: • The amendments clarify that the measurement uncertainty disclosure is to communicate information about the uncertainty in measurement as of the reporting date The following disclosure requirements for public companies were added to Topic 820: • The changes in unrealized gains and losses for the period included in other comprehensive income for recurring Level 3 fair value measurements held at the end of the reporting period • The range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. For certain unobservable inputs, an entity may disclose other quantitative information (such as the median or arithmetic average) in lieu of the weighted average if the entity determines that other quantitative information would be a more reasonable and rational method to reflect the distribution of unobservable inputs used to develop Level 3 fair value measurements The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted. In addition, an entity may early adopt any of the removed or modified disclosures immediately and delay adoption of the new disclosures until the effective date. The Company is currently evaluating the effects of ASU 2018-13 on its financial statements and disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . This Update replaces the incurred loss impairment model in current U.S. GAAP with a model that reflects current expected credit losses (“CECL”). The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables and held-to-maturity debt securities. CECL also requires credit losses on available-for-sale debt securities be measured through an allowance for credit losses when the fair value is less than the amortized cost basis. It also applies to off-balance sheet credit exposures. The Update requires that all expected credit losses for financial assets held at the reporting date be measured based on historical experience, current conditions and reasonable and supportable forecasts. The Update also requires enhanced disclosure, including qualitative and quantitative disclosures that provide additional information about significant estimates and judgments used in estimating credit losses. For public business entities, the Update is effective for annual periods beginning after December 15, 2019 and interim periods within those annual periods. In April 2019, the FASB issued ASU 2019-04, Codification Improvements to Topic 326 - Credit Losses, Topic 815 - Derivatives and Hedging and Topic 825 - Financial Instruments . Certain provisions within this Update are applicable to the Company’s CECL implementation, including the ability to make an accounting policy election not to measure an allowance for credit losses on accrued interest receivable when an entity writes off uncollectable amounts of accrued interest in a timely manner. Additionally, this Update allows an entity to make an accounting policy election not to include accrued interest receivable as part of the amortized cost of loans, but rather to report accrued interest receivable on a separate line in the consolidated balance sheets. The effective date will be the same as the effective date in ASU 2016-13. In May 2019, the FASB issued ASU 2019-05, Financial Instruments - Credit Losses (Topic 326):Targeted Transition Relief, to allow companies to irrevocably elect, upon adoption of ASU 2016-13, the fair value option for financial instruments that (1) were previously recorded at amortized cost, (2) are within the scope of the credit losses guidance in ASC 326-20, (3) are eligible for the fair value option under ASC 825-10 and (4) are not held-to-maturity debt securities. Entities are required to make this election on an instrument-by-instrument basis. The effective date will be the same as the effective date in ASU 2016-13. The Company has developed a new expected credit loss estimation model in accordance with ASU 2016-13. The Company’s CECL Committee and related sub-committees and working groups, which collectively are comprised of senior management and staff members from our finance, credit, lending, internal audit, risk management and IT functional areas, continue to make progress in accordance with the Company’s implementation plan for adoption. Early implementation activities focused on data capture, model development and portfolio segmentation, and were substantially completed during the third quarter of 2019. We have completed our primary model, which we are continuing to review, analyze and refine. During the third quarter, we have initiated validation of our primary model and documentation review of our end-to-end processes, which we expect to complete during the fourth quarter of 2019. To date, we have completed numerous iterations of model output utilizing data from interim periods starting with the fourth quarter of 2018 to test and refine our model, and we will continue to refine and validate our model during the fourth quarter of 2019. Depending on the nature of each identified pool of financial assets with similar risk characteristics, the Company is implementing a probability of default (“PD”) and loss given default (“LGD”) discounted cash flow method and a loss-rate method to estimate expected future credit losses. Additionally, the Company is incorporating reasonable and supportable economic forecasts into the estimate of expected credit losses which will require significant judgment, such as selecting forecast scenarios and related weighting, as well as determining the appropriate length of the forecast horizon. Management intends to leverage economic projections from a reputable and independent third party to inform its reasonable and supportable economic forecasts. Other internal and external indicators of economic forecasts may also be considered by management when developing the forecast metrics. The duration of the forecast horizon, the reversion period and the economic forecasts that management utilizes, as well as additional internal and external indicators of economic forecasts that management considers, may change over time depending on the nature and composition of our portfolio of financial assets. The ultimate impact of ASU 2016-13 will depend on the composition of the portfolio and economic conditions and forecasts at the time of adoption and at future measurement dates . It could also be subject to further regulatory or accounting guidance and other management judgments. Based on our loan portfolio at September 30, 2019 and management’s current expectation of future economic conditions and certain qualitative adjustments, the Company believes that adoption of the new standard will result in an increase in the allowance for credit losses by an amount within a range of $40 million and $60 million ; however, there is no assurance that the ultimate increase in the allowance for credit losses will be within the foregoing range . The Company currently anticipates the majority of the increase in the allowance for credit losses for loans will be attributable to the application of multiple-scenario economic forecasts to our commercial real estate and commercial owner-occupied loan portfolios, which have commercial real estate as the primary collateral source and longer contractual maturities relative to our loan portfolio as a whole. The Company currently does not anticipate it will record a material allowance for credit losses for its held-to-maturity and available-for-sale investment securities upon the adoption of ASU 2016-13; however, the ultimate impact will depend upon the nature and characteristics of our securities portfolios (including issuer specific matters) at the adoption date, the macroeconomic conditions and forecasts at that date, and other management judgments. In February 2019, the U.S. federal bank regulatory agencies approved a final rule modifying their regulatory capital rules and providing an option to phase in over a three-year period the day-one regulatory capital effects of ASU 2016-13. Although the Company does not currently anticipate utilizing the three-year phase-in period, the Company will not make a final determination on the issue until the Company finalizes its model validation activities.
Revenue Recognition	Revenue Recognition – The Company accounts for certain of its revenue streams in accordance with ASC 606 - Revenue from Contracts with Customers . Revenue streams within the scope of and accounted for under ASC 606 include: service charges and fees on deposit accounts, debit card interchange fees, fees from other services the Bank provides its customers and gains and losses from the sale of other real estate owned and property, premises and equipment. ASC 606 requires revenue to be recognized when the Company satisfies related performance obligations by transferring to the customer a good or service. The recognition of revenue under ASC 606 requires the Company to first identify the contract with the customer, identify the performance obligations, determine the transaction price, allocate the transaction price to the performance obligations and finally recognize revenue when the performance obligations have been satisfied and the good or service has been transferred. The majority of the Company’s contracts with customers associated with revenue streams that are within the scope of ASC 606 are considered short-term in nature and can be canceled at any time by the customer or the Bank, such as a deposit account agreement. Other more significant revenue streams for the Company such as interest income on loans and investment securities are specifically excluded from the scope of ASC 606 and are accounted for under other applicable U.S. GAAP.
Goodwill and Core Deposit Intangible	Goodwill and Core Deposit Intangible – Goodwill is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually or more frequently if events and circumstances exist that indicate the necessity for such impairment tests to be performed. The Company has selected the fourth quarter as the period to perform the annual impairment test. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. Goodwill is the only intangible asset with an indefinite life on our balance sheet. Core deposit intangible assets arising from whole bank acquisitions are amortized on either an accelerated basis, reflecting the pattern in which the economic benefits of the intangible assets is consumed or otherwise used up, or on a straight-line amortization method over their estimated useful lives, which range from 6 to 10 years
Leases	Leases – The Company accounts for its leases in accordance with ASC 842, which requires the Company to record liabilities for future lease obligations as well as assets representing the right to use the underlying leased asset. Leases with a term of 12 months or less are accounted for using straight-line expense recognition with no liability or asset being recorded for such leases. Other than short-term leases, the Company classifies its leases as either finance leases or operating leases. Leases are classified as finance leases when any of the following are met: (a) the lease transfers ownership of the underlying asset to the lessee by the end of the lease term, (b) the lease contains an option to purchase the underlying asset that the lessee is reasonably certain to exercise, (c) the term of the lease represents a major part of the remaining life of the underlying asset, (d) the present value of the future lease payments equals or exceeds substantially all of the fair value of the underlying asset or (e) the underling leased asset is expected to have no alternative use to the lessor at the end of the lease term due to its specialized nature. When the Company’s assessment of a lease does not meet the foregoing criteria, and the term of the lease is in excess of 12 months, the lease is classified as an operating lease. Liabilities to make lease payments and right-of-use assets are determined based on the total contractual base rents for each lease, discounted at the rate implicit in the lease or at the Company’s estimated incremental borrowing rate if the rate is not implicit in the lease. The Company measures future base rents based on the minimum payments specified in the lease agreement, giving consideration for periodic contractual rent increases which are based on an escalation rate or a specified index. When future rent payments are based on an index, the Company uses the index rate observed at the time of lease commencement to measure future lease payments. Liabilities to make lease payments are accounted for using the interest method, which are reduced by periodic rent payments, net of interest accretion. Right-of-use assets for finance leases are amortized on a straight-line basis over the term of the lease, while right-of-use assets for operating leases are amortized over the term of the lease by amounts that represent the difference between periodic straight-line lease expense and periodic interest accretion on the related liability to make lease payments. Expense recognition for finance leases is representative of the sum of periodic amortization of the associated right-of-use asset as well as the periodic interest accretion on the liability to make lease payments. Expense recognition for operating leases is recorded on a straight-line basis. As of September 30, 2019, all of the Company’s leases were classified as either operating leases or short-term leases. From time to time the Company leases portions of the space it leases to other parties through sublease transactions. Income received from these transactions is recorded on a straight-line basis over the term of the sublease.
Use of Estimates	Use of Estimates
Fair Value Measurement	Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Impaired Loans and Other Real Estate Owned – A loan is considered impaired when it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement. Impairment is measured based on the fair value of the underlying collateral or the discounted expected future cash flows. The Company measures impairment on all nonaccrual loans for which it has reduced the principal balance to the value of the underlying collateral less the anticipated selling cost. OREO are recorded at estimated fair value less the costs to sell at the time of foreclosure or at the lower of cost or estimated fair value less the costs to sell subsequent to acquisition. The fair value of impaired loans and other real estate owned were determined using Level 3 assumptions, and represents impaired loan and other real estate owned balances for which a specific reserve has been established or on which a write down has been taken. Generally, the Company obtains third party appraisals (or property valuations) and/or collateral audits in conjunction with internal analysis based on historical experience on its impaired loans and other real estate owned to determine fair value. In determining the net realizable value of the underlying collateral for impaired loans, the Company will then discount the valuation to cover both market price fluctuations and selling costs the Company expected would be incurred in the event of foreclosure. In addition to the discounts taken, the Company’s calculation of net realizable value considered any other senior liens in place on the underlying collateral.

Acquisitions (Tables)

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Schedule of assets acquired and liabilities assumed and the provisional fair value adjustments and amounts recorded	The following table represents the assets acquired and liabilities assumed of Grandpoint as of July 1, 2018 and the fair value adjustments and amounts recorded by the Company in 2018 under the acquisition method of accounting: Grandpoint Book Value Fair Value Adjustments Fair Value ASSETS ACQUIRED (dollars in thousands) Cash and cash equivalents $ 147,551 $ — $ 147,551 Investment securities 395,905 (3,047 ) 392,858 Loans, gross 2,404,042 (51,325 ) 2,352,717 Allowance for loan losses (18,665 ) 18,665 — Fixed assets 6,015 3,107 9,122 Core deposit intangible 5,093 66,850 71,943 Deferred tax assets 14,185 (9,157 ) 5,028 Other assets 97,441 (436 ) 97,005 Total assets acquired $ 3,051,567 $ 24,657 $ 3,076,224 LIABILITIES ASSUMED Deposits $ 2,506,663 $ 266 $ 2,506,929 Borrowings 255,155 (232 ) 254,923 Other liabilities 23,687 1,172 24,859 Total liabilities assumed 2,785,505 1,206 2,786,711 Excess of assets acquired over liabilities assumed $ 266,062 $ 23,451 289,513 Consideration paid 602,152 Goodwill recognized $ 312,639
Schedule of contractual amounts due, expected cash flows to be collected, interest component and fair value as of the respective acquisition dates	For loans acquired from Grandpoint, the contractual amounts due, expected cash flows to be collected, interest component and fair value as of acquisition date were as follows: Grandpoint Acquired Loans (dollars in thousands) Contractual amounts due $ 3,496,905 Cash flows not expected to be collected 39,071 Expected cash flows 3,457,834 Interest component of expected cash flows 1,105,117 Fair value of acquired loans $ 2,352,717
Summary of pro forma net interest and other income, net income and earnings per share	The following table presents the unaudited pro forma information for the net interest and other income, net income and earnings per share as if the acquisition was effective as of January 1, 2018 for the periods indicated and includes certain nonrecurring adjustments reflecting the estimated impact of certain fair value adjustments for the respective periods. Nine Months Ended September 30, 2018 (dollars in thousands, except share data) Net interest and other income $ 363,538 Net income 120,400 Basic earnings per share 1.95 Diluted earnings per share 1.93

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Schedule of amortized cost and estimated fair value of securities	The amortized cost and estimated fair value of securities were as follows: September 30, 2019 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value (dollars in thousands) Investment securities available-for-sale: U.S. Treasury $ 60,457 $ 3,733 $ — $ 64,190 Agency 251,329 10,778 (549 ) 261,558 Corporate 125,564 2,255 (17 ) 127,802 Municipal bonds 279,593 14,562 (56 ) 294,099 Collateralized mortgage obligation: residential 10,514 132 (4 ) 10,642 Mortgage-backed securities: residential 486,746 12,570 (952 ) 498,364 Total investment securities available-for-sale 1,214,203 44,030 (1,578 ) 1,256,655 Investment securities held-to-maturity: Mortgage-backed securities: residential 38,686 967 (98 ) 39,555 Other 1,747 — — 1,747 Total investment securities held-to-maturity 40,433 967 (98 ) 41,302 Total investment securities $ 1,254,636 $ 44,997 $ (1,676 ) $ 1,297,957 December 31, 2018 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value (dollars in thousands) Investment securities available-for-sale: U.S. Treasury $ 59,688 $ 1,224 $ — $ 60,912 Agency 128,958 1,631 (519 ) 130,070 Corporate 104,158 291 (906 ) 103,543 Municipal bonds 238,914 1,941 (2,225 ) 238,630 Collateralized mortgage obligation: residential 24,699 64 (425 ) 24,338 Mortgage-backed securities: residential 554,751 1,112 (10,134 ) 545,729 Total investment securities available-for-sale 1,111,168 6,263 (14,209 ) 1,103,222 Investment securities held-to-maturity: Mortgage-backed securities: residential 43,381 148 (686 ) 42,843 Other 1,829 — — 1,829 Total investment securities held-to-maturity 45,210 148 (686 ) 44,672 Total investment securities $ 1,156,378 $ 6,411 $ (14,895 ) $ 1,147,894
Schedule of number, fair value and gross unrealized holding losses of the Company's investment securities by investment category and length of time that the securities have been in a continuous loss position	The table below shows the number, fair value and gross unrealized holding losses of the Company’s investment securities by investment category and length of time that the securities have been in a continuous loss position. September 30, 2019 Less than 12 Months 12 Months or Longer Total Number Fair Value Gross Unrealized Holding Losses Number Fair Value Gross Unrealized Holding Losses Number Fair Value Gross Unrealized Holding Losses (dollars in thousands) Investment securities available-for-sale: Agency 4 $ 30,761 $ (207 ) 11 $ 15,789 $ (342 ) 15 $ 46,550 $ (549 ) Corporate 1 1,022 (13 ) 1 1,526 (4 ) 2 2,548 (17 ) Municipal bonds 10 9,809 (56 ) — — — 10 9,809 (56 ) Collateralized mortgage obligation: residential — — — 1 652 (4 ) 1 652 (4 ) Mortgage-backed securities: residential 6 47,359 (216 ) 19 35,853 (736 ) 25 83,212 (952 ) Total investment securities available-for-sale 21 88,951 (492 ) 32 53,820 (1,086 ) 53 142,771 (1,578 ) Investment securities held-to-maturity: Mortgage-backed securities: residential — — — 3 13,953 (98 ) 3 13,953 (98 ) Total investment securities held-to-maturity — — — 3 13,953 (98 ) 3 13,953 (98 ) Total investment securities 21 $ 88,951 $ (492 ) 35 $ 67,773 $ (1,184 ) 56 $ 156,724 $ (1,676 ) December 31, 2018 Less than 12 Months 12 Months or Longer Total Number Fair Gross Number Fair Gross Number Fair Gross (dollars in thousands) Investment securities available-for-sale: Agency 15 $ 26,229 $ (333 ) 6 $ 10,434 $ (186 ) 21 $ 36,663 $ (519 ) Corporate 9 47,805 (471 ) 8 19,369 (435 ) 17 67,174 (906 ) Municipal bonds 60 45,083 (369 ) 102 69,693 (1,856 ) 162 114,776 (2,225 ) Collateralized mortgage obligation: residential 1 814 (1 ) 8 18,104 (424 ) 9 18,918 (425 ) Mortgage-backed securities: residential 20 70,839 (435 ) 120 324,864 (9,699 ) 140 395,703 (10,134 ) Total investment securities available-for-sale 105 190,770 (1,609 ) 244 442,464 (12,600 ) 349 633,234 (14,209 ) Investment securities held-to-maturity: Mortgage-backed securities: residential 3 11,256 (81 ) 3 15,741 (605 ) 6 26,997 (686 ) Total investment securities held-to-maturity 3 11,256 (81 ) 3 15,741 (605 ) 6 26,997 (686 ) Total investment securities 108 $ 202,026 $ (1,690 ) 247 $ 458,205 $ (13,205 ) 355 $ 660,231 $ (14,895 )
Schedule of amortized cost and estimated fair value of investment securities available for sale by contractual maturity	The amortized cost and estimated fair value of investment securities at September 30, 2019 , by contractual maturity are shown in the table below. Due in One Year or Less Due after One Year through Five Years Due after Five Years through Ten Years Due after Ten Years Total Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value (dollars in thousands) Investment securities available-for-sale: U.S. Treasury $ 498 $ 499 $ 20,171 $ 20,702 $ 39,788 $ 42,989 $ — $ — $ 60,457 $ 64,190 Agency — — 42,658 44,453 165,240 171,635 43,431 45,470 251,329 261,558 Corporate — — — — 125,564 127,802 — — 125,564 127,802 Municipal bonds — — 3,569 3,710 34,911 36,057 241,113 254,332 279,593 294,099 Collateralized mortgage obligation: residential — — — — 657 652 9,857 9,990 10,514 10,642 Mortgage-backed securities: residential — — 2,576 2,652 168,693 172,752 315,477 322,960 486,746 498,364 Total investment securities available-for-sale 498 499 68,974 71,517 534,853 551,887 609,878 632,752 1,214,203 1,256,655 Investment securities held-to-maturity: Mortgage-backed securities: residential — — 913 953 — — 37,773 38,602 38,686 39,555 Other — — — — — — 1,747 1,747 1,747 1,747 Total investment securities held-to-maturity — — 913 953 — — 39,520 40,349 40,433 41,302 Total investment securities $ 498 $ 499 $ 69,887 $ 72,470 $ 534,853 $ 551,887 $ 649,398 $ 673,101 $ 1,254,636 $ 1,297,957

Loans Held for Investment (Tabl

Loans Held for Investment (Tables)	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Schedule of components of loans held for investment	The following table sets forth the composition of our loan portfolio in dollar amounts at the dates indicated: September 30, 2019 December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,233,938 $ 1,364,423 Franchise 894,023 765,416 Commercial owner occupied (1) 1,678,888 1,679,122 SBA 179,965 193,882 Agribusiness 119,633 138,519 Total business loans 4,106,447 4,141,362 Real estate loans Commercial non-owner occupied 2,053,590 2,003,174 Multi-family 1,611,904 1,535,289 One-to-four family (2) 273,182 356,264 Construction 478,961 523,643 Farmland 171,667 150,502 Land 30,717 46,628 Total real estate loans 4,620,021 4,615,500 Consumer loans Consumer loans 40,548 89,424 Gross loans held for investment (3) 8,767,016 8,846,286 Deferred loan origination (fees)/costs and (discounts)/premiums, net (9,540 ) (9,468 ) Loans held for investment 8,757,476 8,836,818 Allowance for loan losses (35,000 ) (36,072 ) Loans held for investment, net $ 8,722,476 $ 8,800,746 Loans held for sale, at lower of cost or fair value $ 7,092 $ 5,719 ______________________________ (1) Secured by real estate. (2) Includes second trust deeds. (3) Total gross loans held for investment for September 30, 2019 and December 31, 2018 are net of the unaccreted fair value net purchase discounts of $46.8 million and $61.0 million , respectively.
Summary of loan portfolio by the Company's internal risk grading system	The following tables stratify the loan portfolio by the Company’s internal risk grading as of the periods indicated: Credit Risk Grades Pass Special Mention Substandard Doubtful Total Gross Loans September 30, 2019 (dollars in thousands) Business loans Commercial and industrial $ 1,219,358 $ 4,438 $ 10,142 $ — $ 1,233,938 Franchise 880,632 13,375 16 — 894,023 Commercial owner occupied 1,669,152 1,321 8,415 — 1,678,888 SBA 171,393 1,881 6,691 — 179,965 Agribusiness 107,551 — 12,082 — 119,633 Real estate loans Commercial non-owner occupied 2,052,813 — 777 — 2,053,590 Multi-family 1,611,686 — 218 — 1,611,904 One-to-four family 272,555 — 627 — 273,182 Construction 478,961 — — — 478,961 Farmland 171,667 — — — 171,667 Land 30,585 — 132 — 30,717 Consumer loans Consumer loans 40,494 — 54 — 40,548 Totals $ 8,706,847 $ 21,015 $ 39,154 $ — $ 8,767,016 Credit Risk Grades Pass Special Substandard Doubtful Total Gross December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,340,284 $ 12,005 $ 12,134 $ — $ 1,364,423 Franchise 760,795 4,431 190 — 765,416 Commercial owner occupied 1,660,994 1,580 16,548 — 1,679,122 SBA 184,687 2,289 6,906 — 193,882 Agribusiness 125,355 — 13,164 — 138,519 Real estate loans Commercial non-owner occupied 1,996,756 731 5,687 — 2,003,174 Multi-family 1,530,567 4,060 662 — 1,535,289 One-to-four family 350,083 728 5,453 — 356,264 Construction 523,643 — — — 523,643 Farmland 150,381 — 121 — 150,502 Land 46,008 132 488 — 46,628 Consumer loans Consumer loans 89,321 — 103 — 89,424 Totals $ 8,758,874 $ 25,956 $ 61,456 $ — $ 8,846,286
Schedule of delinquencies in the Company's loan portfolio	The following tables set forth delinquencies in the Company’s loan portfolio at the dates indicated: Days Past Due Current 30-59 60-89 90+ Total Gross Loans Non-accruing September 30, 2019 (dollars in thousands) Business loans Commercial and industrial $ 1,229,223 $ 101 $ 3,105 $ 1,509 $ 1,233,938 $ 2,950 Franchise 893,999 8 — 16 894,023 16 Commercial owner occupied 1,677,101 382 — 1,405 1,678,888 1,405 SBA 176,541 731 107 2,586 179,965 2,586 Agribusiness 119,633 — — — 119,633 — Real estate loans Commercial non-owner occupied 2,052,813 — — 777 2,053,590 777 Multi-family 1,611,904 — — — 1,611,904 — One-to-four family 272,679 503 — — 273,182 371 Construction 478,961 — — — 478,961 — Farmland 171,667 — — — 171,667 — Land 30,717 — — — 30,717 — Consumer loans Consumer loans 40,548 — — — 40,548 — Totals $ 8,755,786 $ 1,725 $ 3,212 $ 6,293 $ 8,767,016 $ 8,105 Days Past Due Current 30-59 60-89 90+ Total Gross Loans Non-accruing December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,361,979 $ 309 $ 1,204 $ 931 $ 1,364,423 $ 931 Franchise 759,546 5,680 — 190 765,416 190 Commercial owner occupied 1,677,967 343 — 812 1,679,122 599 SBA 190,732 524 — 2,626 193,882 2,739 Agribusiness 138,519 — — — 138,519 — Real estate loans Commercial non-owner occupied 2,003,174 — — — 2,003,174 — Multi-family 1,535,275 14 — — 1,535,289 — One-to-four family 356,219 30 9 6 356,264 398 Construction 523,643 — — — 523,643 — Farmland 150,502 — — — 150,502 — Land 46,628 — — — 46,628 — Consumer loans Consumer loans 89,249 146 29 — 89,424 — Totals $ 8,833,433 $ 7,046 $ 1,242 $ 4,565 $ 8,846,286 $ 4,857
Summary of Company's investment in impaired loans	The following tables provide a summary of the Company’s investment in impaired loans as of the period indicated: Impaired Loans Unpaid Principal Balance Recorded Investment With Specific Allowance Without Specific Allowance Specific Allowance for Impaired Loans (dollars in thousands) September 30, 2019 Business loans Commercial and industrial $ 3,099 $ 2,950 $ — $ 2,950 $ — Franchise 697 16 — 16 — Commercial owner occupied 1,427 1,406 — 1,406 — SBA 3,320 2,586 — 2,586 — Agribusiness 6,903 6,903 — 6,903 — Real estate loans Commercial non-owner occupied 1,351 777 — 777 — One-to-four family 413 371 — 371 — Totals $ 17,210 $ 15,009 $ — $ 15,009 $ — Impaired Loans Unpaid Principal Balance Recorded Investment With Specific Allowance Without Specific Allowance Specific Allowance for Impaired Loans (dollars in thousands) December 31, 2018 Business loans Commercial and industrial $ 1,071 $ 1,023 $ 550 $ 473 $ 118 Franchise 190 189 — 189 — Commercial owner occupied 628 599 — 599 — SBA 7,598 2,739 488 2,251 466 Agribusiness 7,500 7,500 — 7,500 — Real estate loans One-to-four family 453 408 — 408 — Totals $ 17,440 $ 12,458 $ 1,038 $ 11,420 $ 584 The following table presents information on impaired loans and leases, disaggregated by class, for the periods indicated: Impaired Loans Three Months Ended September 30, 2019 June 30, 2019 September 30, 2018 Average Recorded Investment Interest Income Recognized (1) Average Recorded Investment Interest Income Recognized (1) Average Recorded Investment Interest Income Recognized (1) (dollars in thousands) Business loans Commercial and industrial $ 3,078 $ — $ 2,614 $ — $ 1,030 $ — Franchise 679 — 4,047 — 209 — Commercial owner occupied 845 — 564 — — — SBA 2,488 — 3,139 — 1,914 — Agribusiness 7,092 104 7,489 109 — — Real estate loans Commercial non-owner occupied 421 — 162 — 1,290 — Multi-family — — — — 589 — One-to-four family 373 — 383 — 1,406 — Land 320 — 160 — 5 — Consumer loans Consumer loans — $ — 17 — 13 — Totals $ 15,296 $ 104 $ 18,575 $ 109 $ 6,456 $ — (1) Interest income recognized represents interest on accruing loans. Impaired Loans Nine Months Ended September 30, 2019 2018 Average Recorded Investment Interest Income Recognized (1) Average Recorded Investment Interest Income Recognized (1) (dollars in thousands) Business loans: Commercial and industrial $ 2,565 $ — $ 1,161 $ — Franchise 2,901 — 93 — Commercial owner occupied 662 — 1,931 — SBA 2,969 — 1,505 — Agribusiness 7,360 303 — — Real estate loans: Commercial non-owner occupied 194 — 573 — Multi-family — — 666 — One-to-four family 383 — 1,258 — Land 160 — 6 — Consumer loans: Consumer loans 25 — 41 — Totals $ 17,219 $ 303 $ 7,234 $ — (1) Interest income recognized represents interest on accruing loans.
Summary of additional detail on components of impaired loans	The following table provides additional detail on the components of impaired loans at the period end indicated: September 30, 2019 December 31, 2018 (dollars in thousands) Nonaccrual loans $ 8,105 $ 4,857 Accruing loans 6,904 7,601 Total impaired loans $ 15,009 $ 12,458
Summary of Company's investment in purchased credit impaired loans	The Company has purchased loans that have experienced deterioration of credit quality between origination and acquisition and for which it was probable, at acquisition, that not all contractually required payments would be collected. The carrying amount of those loans is as follows: September 30, 2019 December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ — $ 10 Commercial owner occupied 577 632 SBA 1,154 1,265 Real estate loans Commercial non-owner occupied — 275 Total purchased credit impaired $ 1,731 $ 2,182
Summary of accretable yield on purchased credit impaired	The following table summarizes the accretable yield on the PCI loans for the periods indicated. Three Months Ended Nine Months Ended September 30, June 30, September 30, September 30, 2019 2019 2018 2019 2018 (dollars in thousands) Balance at the beginning of period $ 296 $ 332 $ 1,473 $ 411 $ 3,019 Additions — — 483 — 483 Accretion (46 ) (45 ) (162 ) (170 ) (668 ) Payoffs — (9 ) (1 ) (9 ) (1,819 ) Sales — — — $ — $ — Reclassification from nonaccretable difference (18 ) 18 195 — 973 Balance at the end of period $ 232 $ 296 $ 1,988 $ 232 $ 1,988

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2019
Provision for Loan and Lease Losses [Abstract]
Summary of allocation of the allowance as well as the activity in the allowance attributed to various segments in the loan portfolio	The following tables summarize the allocation of the ALLL as well as the activity in the ALLL attributed to various segments in the loan portfolio as of and for the periods indicated: Three Months Ended September 30, 2019 Commercial and industrial Franchise Commercial owner occupied SBA Agribusiness Commercial non-owner occupied Multi-family One-to-four family Construction Farmland Land Consumer loans Total (dollars in thousands) Balance, March 31, 2019 $ 11,031 $ 6,765 $ 1,490 $ 3,363 $ 2,765 $ 1,765 $ 705 $ 704 $ 4,750 $ 809 $ 658 $ 221 $ 35,026 Charge-offs (290 ) (995 ) — (143 ) — (86 ) — — — — — (11 ) (1,525 ) Recoveries 54 — 8 62 — — — 1 — — — 9 134 Provisions for (reduction in) loan losses (265 ) 963 228 1,099 (399 ) 199 10 (14 ) (592 ) 29 (25 ) 132 1,365 Balance, June 30, 2019 $ 10,530 $ 6,733 $ 1,726 $ 4,381 $ 2,366 $ 1,878 $ 715 $ 691 $ 4,158 $ 838 $ 633 $ 351 $ 35,000 Nine Months Ended September 30, 2019 Commercial and industrial Franchise Commercial owner occupied SBA Agribusiness Commercial non-owner occupied Multi-family One-to-four family Construction Farmland Land Consumer loans Total (dollars in thousands) Balance, December 31, 2018 $ 10,821 $ 6,500 $ 1,386 $ 4,288 $ 3,283 $ 1,604 $ 725 $ 805 $ 5,166 $ 503 $ 772 $ 219 $ 36,072 Charge-offs (985 ) (2,531 ) — (1,362 ) — (574 ) — — — — — (16 ) (5,468 ) Recoveries 168 — 31 66 — — — 2 — — — 10 277 Provisions for (reduction in) loan losses 526 2,764 309 1,389 (917 ) 848 (10 ) (116 ) (1,008 ) 335 (139 ) 138 4,119 Balance, September 30, 2019 $ 10,530 $ 6,733 $ 1,726 $ 4,381 $ 2,366 $ 1,878 $ 715 $ 691 $ 4,158 $ 838 $ 633 $ 351 $ 35,000 Amount of allowance attributed to: Specifically evaluated impaired loans $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — General portfolio allocation 10,530 6,733 1,726 4,381 2,366 1,878 715 691 4,158 838 633 351 35,000 Loans individually evaluated for impairment 2,950 16 1,406 2,586 6,903 777 — 371 — — — — 15,009 Specific reserves to total loans individually evaluated for impairment — % — % — % — % — % — % — % — % — % — % — % — % — % Loans collectively evaluated for impairment $ 1,230,988 $ 894,007 $ 1,677,482 $ 177,379 $ 112,730 $ 2,052,813 $ 1,611,904 $ 272,811 $ 478,961 $ 171,667 $ 30,717 $ 40,548 $ 8,752,007 General reserves to total loans collectively evaluated for impairment 0.86 % 0.75 % 0.10 % 2.47 % 2.10 % 0.09 % 0.04 % 0.25 % 0.87 % 0.49 % 2.06 % 0.87 % 0.40 % Total gross loans held for investment $ 1,233,938 $ 894,023 $ 1,678,888 $ 179,965 $ 119,633 $ 2,053,590 $ 1,611,904 $ 273,182 $ 478,961 $ 171,667 $ 30,717 $ 40,548 $ 8,767,016 Total allowance to gross loans held for investment 0.85 % 0.75 % 0.10 % 2.43 % 1.98 % 0.09 % 0.04 % 0.25 % 0.87 % 0.49 % 2.06 % 0.87 % 0.40 % Three Months Ended September 30, 2018 Commercial and industrial Franchise Commercial owner occupied SBA Agribusiness Commercial non-owner occupied Multi-family One-to-four family Construction Farmland Land Consumer loans Total (dollars in thousands) Balance, March 31, 2018 $ 10,164 $ 6,181 $ 1,137 $ 2,575 $ 2,694 $ 1,450 $ 563 $ 698 $ 4,809 $ 405 $ 972 $ 99 $ 31,747 Charge-offs (100 ) — — (44 ) — — — — — — — (85 ) (229 ) Recoveries 120 — 8 8 — — — — — — — 6 142 Provisions for (reduction in) loan losses 200 151 68 288 871 33 60 21 11 (30 ) (104 ) 77 1,646 Balance, June 30, 2018 $ 10,384 $ 6,332 $ 1,213 $ 2,827 $ 3,565 $ 1,483 $ 623 $ 719 $ 4,820 $ 375 $ 868 $ 97 $ 33,306 Nine Months Ended September 30, 2018 Commercial and industrial Franchise Commercial owner occupied SBA Agribusiness Commercial non-owner occupied Multi-family One-to-four family Construction Farmland Land Consumer loans Total (dollars in thousands) Balance, December 31, 2017 $ 9,721 $ 5,797 $ 767 $ 2,890 $ 1,291 $ 1,266 $ 607 $ 803 $ 4,569 $ 137 $ 993 $ 95 $ 28,936 Charge-offs (1,011 ) — — (100 ) — — — — — — — (137 ) (1,248 ) Recoveries 283 — 32 43 — — — 1 — — — 7 366 Provisions for (reduction in) loan losses 1,391 535 414 (6 ) 2,274 217 16 (85 ) 251 238 (125 ) 132 5,252 Balance, September 30, 2018 $ 10,384 $ 6,332 $ 1,213 $ 2,827 $ 3,565 $ 1,483 $ 623 $ 719 $ 4,820 $ 375 $ 868 $ 97 $ 33,306 Amount of allowance attributed to: Specifically evaluated impaired loans $ — $ — $ — $ 250 $ — $ — $ — $ — $ — $ — $ — $ — $ 250 General portfolio allocation 10,384 6,332 1,213 2,577 3,565 1,483 623 719 4,820 375 868 97 33,056 Loans individually evaluated for impairment 1,027 209 — 2,748 — 1,290 589 1,388 — — 4 13 7,268 Specific reserves to total loans individually evaluated for impairment — % — % — % 9.10 % — % — % — % — % — % — % — % — % 3.44 % Loans collectively evaluated for impairment $ 1,358,814 $ 735,157 $ 1,675,528 $ 190,739 $ 133,241 $ 1,929,875 $ 1,554,103 $ 375,229 $ 504,708 138,479 $ 49,988 $ 114,723 $ 8,760,584 General reserves to total loans collectively evaluated for impairment 0.76 % 0.86 % 0.07 % 1.35 % 2.68 % 0.08 % 0.04 % 0.19 % 0.96 % 0.27 % 1.74 % 0.08 % 0.38 % Total gross loans held for investment $ 1,359,841 $ 735,366 $ 1,675,528 $ 193,487 $ 133,241 $ 1,931,165 $ 1,554,692 $ 376,617 $ 504,708 138,479 $ 49,992 $ 114,736 $ 8,767,852 Total allowance to gross loans held for investment 0.76 % 0.86 % 0.07 % 1.46 % 2.68 % 0.08 % 0.04 % 0.19 % 0.96 % 0.27 % 1.74 % 0.08 % 0.38 %

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Schedule of Company's unaudited earnings per share calculations	The following tables set forth the Company’s earnings per share calculations for the periods indicated: Three Months Ended September 30, 2019 June 30, 2019 September 30, 2018 (dollars in thousands, except per share data) Basic Net income $ 41,375 $ 38,527 $ 28,392 Less: Earnings allocated to participating securities (432 ) (444 ) — Net income allocated to common stockholders $ 40,943 $ 38,083 $ 28,392 Weighted average common shares outstanding 59,293,218 61,308,046 61,727,030 Basic earnings per common share $ 0.69 $ 0.62 $ 0.46 Diluted Net income allocated to common stockholders $ 40,943 $ 38,083 $ 28,392 Weighted average common shares outstanding 59,293,218 61,308,046 61,727,030 Diluted effect of share-based compensation 377,637 353,727 634,774 Weighted average diluted common shares 59,670,855 61,661,773 62,361,804 Diluted earnings per common share $ 0.69 $ 0.62 $ 0.46 Nine Months Ended September 30, 2019 September 30, 2018 (dollars in thousands, except per share data) Basic Net income $ 118,620 $ 83,697 Less: Earnings allocated to participating securities (1,223 ) — Net income allocated to common stockholders $ 117,397 $ 83,697 Weighted average common shares outstanding 60,853,081 51,282,533 Basic earnings per common share $ 1.93 $ 1.63 Diluted Net income allocated to common stockholders $ 117,397 $ 83,697 Weighted average common shares outstanding 60,853,081 51,282,533 Diluted effect of share-based compensation 348,777 683,114 Weighted average diluted common shares 61,201,858 51,965,647 Diluted earnings per common share $ 1.92 $ 1.61

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Schedule of Company's financial instruments measured at fair value on a recurring basis	The following fair value hierarchy table presents information about the Company’s financial assets and liabilities measured at fair value on a recurring basis at the dates indicated: September 30, 2019 Fair Value Measurement Using Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) Financial assets Investment securities available-for-sale: U.S. Treasury $ — $ 64,190 $ — $ 64,190 Agency — 261,558 — 261,558 Corporate — 127,802 — 127,802 Municipal bonds — 294,099 — 294,099 Collateralized mortgage obligation — 10,642 — 10,642 Mortgage-backed securities — 498,364 — 498,364 Total securities available-for-sale $ — $ 1,256,655 $ — $ 1,256,655 Derivative assets $ — $ 2,853 $ — $ 2,853 Financial liabilities Derivative liabilities $ — $ 2,853 $ — $ 2,853 December 31, 2018 Fair Value Measurement Using Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) Financial assets Investment securities available-for-sale: U.S. Treasury $ — $ 60,912 $ — $ 60,912 Agency — 130,070 — 130,070 Corporate — 103,543 — 103,543 Municipal bonds — 238,630 — 238,630 Collateralized mortgage obligation — 24,338 — 24,338 Mortgage-backed securities — 545,729 — 545,729 Total securities available-for-sale $ — $ 1,103,222 $ — $ 1,103,222 Derivative assets $ — $ 1,681 $ — $ 1,681 Financial liabilities Derivative liabilities $ — $ 1,681 $ — $ 1,681
Schedule of Company's financial instruments measured at fair value on a nonrecuring basis	The following table presents our assets measured at fair value on a nonrecurring basis at September 30, 2019 and December 31, 2018. September 30, 2019 Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) Financial assets Impaired loans $ — $ — $ 16 $ 16 December 31, 2018 Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) Financial assets Impaired loans $ — $ — $ 1,445 $ 1,445
Schedule of carrying amount and estimated fair value of financial instruments	The fair value estimates presented herein are based on pertinent information available to management as of the dates indicated, representing an exit price. At September 30, 2019 Carrying Amount Level 1 Level 2 Level 3 Estimated Fair Value (dollars in thousands) Assets: Cash and cash equivalents $ 427,715 $ 427,715 $ — $ — $ 427,715 Interest-bearing time deposits with financial institutions 2,711 2,711 — — 2,711 Investments held-to-maturity 40,433 — 41,302 — 41,302 Investment securities available-for-sale 1,256,655 — 1,256,655 — 1,256,655 Loans held for sale 7,092 — 7,637 — 7,637 Loans held for investment, net 8,757,476 — — 8,758,265 8,758,265 Derivative asset 2,853 — 2,853 — 2,853 Accrued interest receivable 38,603 38,603 — — 38,603 Liabilities: Deposit accounts 8,859,288 7,515,400 1,345,436 — 8,860,836 FHLB advances 604,558 — 604,980 — 604,980 Subordinated debentures 217,825 — 237,624 — 237,624 Derivative liability 2,853 — 2,853 — 2,853 Accrued interest payable 6,537 6,537 — — 6,537 At December 31, 2018 Carrying Amount Level 1 Level 2 Level 3 Estimated Fair Value (dollars in thousands) Assets: Cash and cash equivalents $ 203,406 $ 203,406 $ — $ — $ 203,406 Interest-bearing time deposits with financial institutions 6,143 6,143 — — 6,143 Investments held-to-maturity 45,210 — 44,672 — 44,672 Investment securities available-for-sale 1,103,222 — 1,103,222 — 1,103,222 Loans held for sale 5,719 — 6,072 — 6,072 Loans held for investment, net 8,836,818 — — 8,697,594 8,697,594 Derivative asset 1,929 — 1,681 — 1,681 Accrued interest receivable 37,837 37,837 — — 37,837 Liabilities: Deposit accounts 8,658,351 7,247,673 1,403,524 — 8,651,197 FHLB advances 667,606 — 666,864 — 666,864 Other borrowings 75 — 75 — 75 Subordinated debentures 110,313 — 115,613 — 115,613 Derivative liability 1,929 — 1,681 — 1,681 Accrued interest payable 3,255 3,255 — — 3,255

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of derivative instruments	The following tables summarize the Company's derivative instruments, included in “other assets” and “other liabilities” in the consolidated statements of financial condition: September 30, 2019 Derivative Assets Derivative Liabilities Notional Fair Value Notional Fair Value (dollars in thousands) Derivative instruments not designated as hedging instruments: Interest rate swap contracts $ 48,932 $ 2,853 $ 48,932 $ 2,853 Total derivative instruments $ 48,932 $ 2,853 $ 48,932 $ 2,853 December 31, 2018 Derivative Assets Derivative Liabilities Notional Fair Value Notional Fair Value (dollars in thousands) Derivative instruments not designated as hedging instruments: Interest rate swap contracts $ 57,502 $ 1,681 $ 57,502 $ 1,681 Total derivative instruments $ 57,502 $ 1,681 $ 57,502 $ 1,681

Balance Sheet Offsetting (Table

Balance Sheet Offsetting (Tables)	9 Months Ended
	Sep. 30, 2019
Offsetting [Abstract]
Schedule of financial instruments eligible for offset in consolidated statements of financial condition	Financial instruments that are eligible for offset in the consolidated statements of financial condition as of September 30, 2019 are presented in the table below: Gross Amounts Not Offset in the Consolidated Gross Amounts Recognized Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts Presented in the Consolidated Balance Sheets Financial Instruments Cash Collateral (1) Net Amount (dollars in thousands) September 30, 2019 Financial assets: Derivatives not designated as hedging instruments $ 2,853 $ — $ 2,853 $ — $ — $ 2,853 Total $ 2,853 $ — $ 2,853 $ — $ — $ 2,853 Financial liabilities: Derivatives not designated as hedging instruments $ 2,853 $ — $ 2,853 $ — $ (2,750 ) $ 103 Total $ 2,853 $ — $ 2,853 $ — $ (2,750 ) $ 103 (1) Represents cash collateral pledged with counterparty bank. Financial instruments that are eligible for offset in the consolidated statements of financial condition as of December 31, 2018 are presented in the table below: Gross Amounts Not Offset in the Consolidated Gross Amounts Recognized Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts Presented in the Consolidated Balance Sheets Financial Instruments Cash Collateral (1) Net Amount (dollars in thousands) December 31, 2018 Financial assets: Derivatives not designated as hedging instruments $ 2,177 $ (496 ) $ 1,681 $ — $ — $ 1,681 Total $ 2,177 $ (496 ) $ 1,681 $ — $ — $ 1,681 Financial liabilities: Derivatives not designated as hedging instruments $ 1,681 $ — $ 1,681 $ — $ — $ 1,681 Total $ 1,681 $ — $ 1,681 $ — $ — $ 1,681 (1) Represents cash collateral held with counterparty bank.

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Schedule of supplemental information	The following table presents supplemental information related to operating leases as of the period indicated: September 30, 2019 (dollars in thousands) Balance Sheet: Operating lease right of use assets $ 42,065 Operating lease liabilities 44,973 Cash Flows: Operating cash flows from operating leases 8,786
Schedule of minimum contractual lease payments and other information	The following table provides information related to minimum contractual lease payments and other information associated with the Company’s leases as of September 30, 2019 : 2019 2020 2021 2022 2023 Thereafter Total (dollars in thousands) Contractual base rents (1) : Operating leases $ 2,798 $ 9,354 $ 9,773 $ 9,327 $ 8,346 $ 13,619 $ 53,217 Short-term leases 218 79 — — — — 297 Total contractual base rents $ 3,016 $ 9,433 $ 9,773 $ 9,327 $ 8,346 $ 13,619 $ 53,514 Total liability to make lease payments $ 44,973 Difference in undiscounted and discounted future lease payments $ 8,541 Weighted average discount rate 6.26 % Weighted average remaining lease term (years) 5.5 (1) Contractual base rents reflect options to extend and renewals, and do not include property taxes and other operating expenses due under respective lease agreements.
Schedule of information related to minimum contractual lease payments	The following table provides information related to minimum contractual lease payments for the periods indicated below as of December 31, 2018 (1) : 2019 2020 2021 2022 2023 Thereafter Total (dollars in thousands) Minimum contractual lease payments $ 11,468 $ 10,869 $ 10,133 $ 9,296 $ 8,124 $ 10,518 $ 60,408 (1) Contractual base rents in the table above are reflective of future lease obligations under ASC 840, prior to the implementation of ASC 842. The amounts in the table above do not reflect extensions or renewals and do not include property taxes and other operating expenses due under respective lease agreements. The amounts in the table above also reflect future lease obligations for certain leases that had not yet commenced as of December 31, 2018.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Summary of Company's revenue streams	The following tables provide a summary of the Company’s revenue streams, including those that are within the scope of ASC 606 and those that are accounted for under other applicable U.S. GAAP: Three Months Ended September 30, 2019 June 30, 2019 September 30, 2018 Within Scope (1) Out of Scope (2) Within Scope (1) Out of Scope (2) Within Scope (1) Out of Scope (2) (dollars in thousands) Interest income: Loans $ — $ 122,974 $ — $ 121,860 $ — $ 119,271 Investment securities and other interest-earning assets — 9,630 — 10,554 — 9,605 Total interest income — 132,604 — 132,414 — 128,876 Noninterest income: Loan servicing fees — 546 — 409 — 400 Service charges on deposit accounts 1,440 — 1,441 — 1,570 — Other service fee income 360 — 363 — 317 — Debit card interchange income 421 — 1,145 — 1,061 — Earnings on bank-owned life insurance — 861 — 851 — 1,270 Net gain from sales of loans — 2,313 — 902 — 2,029 Net gain from sales of investment securities — 4,261 — 212 — 1,063 Other income 592 636 544 457 (446 ) 976 Total noninterest income 2,813 8,617 3,493 2,831 2,502 5,738 Total revenues $ 2,813 $ 141,221 $ 3,493 $ 135,245 $ 2,502 $ 134,614 (1) Revenues from contracts with customers accounted for under ASC 606. (2) Revenues not within the scope of ASC 606 and accounted for under other applicable U.S. GAAP requirements. Nine Months Ended September 30, 2019 September 30, 2018 Within Scope (1) Out of Scope (2) Within Scope (1) Out of Scope (2) (dollars in thousands) Interest income: Loans $ — $ 366,310 $ — $ 289,069 Investment securities and other interest-earning assets — 29,951 — 23,333 Total interest income — 396,261 — 312,402 Noninterest income: Loan servicing fees — 1,353 — 1,037 Service charges on deposit accounts 4,211 — 3,777 — Other service fee income 1,079 — 632 — Debit card interchange income 2,637 — 3,187 — Earnings on bank-owned life insurance — 2,622 — 2,498 Net gain from sales of loans — 4,944 — 8,830 Net gain from sales of investment securities — 4,900 — 1,399 Other income 1,328 2,361 84 2,613 Total noninterest income 9,255 16,180 7,680 16,377 Total revenues $ 9,255 $ 412,441 $ 7,680 $ 328,779 (1) Revenues from contracts with customers accounted for under ASC 606. (2) Revenues not within the scope of ASC 606 and accounted for under other applicable U.S. GAAP requirements.

Recently Issued Accounting Pr_2

Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities	$ 44,973
Operating lease right of use assets	42,065
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities		$ 45,700
Operating lease right of use assets		43,800
Cumulative adjustment not recorded		$ 1,900
Accounting Standards Update 2016-13 | Minimum | Pro Forma
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in the allowance for credit losses	40,000
Accounting Standards Update 2016-13 | Maximum | Pro Forma
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in the allowance for credit losses	$ 60,000

Significant Accounting Polici_3

Significant Accounting Policies (Details) - Core Deposits	9 Months Ended
	Sep. 30, 2019
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Weighted average useful life	6 years
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Weighted average useful life	10 years

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) $ / shares in Units, $ in Thousands	Jun. 30, 2019USD ($)	Jul. 01, 2018USD ($)shares	Jun. 30, 2019USD ($)	Sep. 30, 2019USD ($)	Dec. 31, 2018USD ($)	Jun. 29, 2018$ / shares
Business Acquisition [Line Items]
Goodwill				$ 808,322	$ 808,726
Grandpoint Capital, Inc.
Business Acquisition [Line Items]
Total assets acquired	$ 3,076,224	$ 3,051,567	$ 3,076,224
Gross loans acquired		2,400,000
Total deposits acquired	2,506,929	$ 2,506,663	2,506,929
Equity issued, ratio		0.4750
Consideration paid	602,152	$ 602,200
Aggregate cash consideration payable		28,100
Company's common stock value (usd per share) | $ / shares						$ 38.15
Goodwill	$ 312,639	$ 312,600	312,639
Net adjustment to loans, deferred tax assets and other assets since acquisition			$ 580
Grandpoint Capital, Inc. | Common Stock
Business Acquisition [Line Items]
Common stock issued as consideration (in shares) | shares		15,758,089

Acquisitions - Assets Acquired

Acquisitions - Assets Acquired and Liabilities Assumed - (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
LIABILITIES ASSUMED
Goodwill recognized				$ 808,322	$ 808,726
Grandpoint Capital, Inc.
ASSETS ACQUIRED
Cash and cash equivalents	$ 147,551	$ 147,551	$ 147,551
Investment securities	392,858	395,905	392,858
Loans, gross	2,352,717	2,404,042	2,352,717
Allowance for loan losses	0	(18,665)	0
Fixed assets	9,122	6,015	9,122
Core deposit intangible	71,943	5,093	71,943
Deferred tax assets	5,028	14,185	5,028
Other assets	97,005	97,441	97,005
Total assets acquired	3,076,224	3,051,567	3,076,224
LIABILITIES ASSUMED
Deposits	2,506,929	2,506,663	2,506,929
Borrowings	254,923	255,155	254,923
Other Liabilities	24,859	23,687	24,859
Total liabilities assumed	2,786,711	2,785,505	2,786,711
Excess of assets acquired over liabilities assumed	289,513	266,062	289,513
Consideration paid	602,152	602,200
Goodwill recognized	$ 312,639	$ 312,600	312,639
Fair Value Adjustments
Cash and cash equivalents			0
Investment securities			(3,047)
Loans, gross			(51,325)
Allowance for loan losses			18,665
Fixed assets			3,107
Core deposit intangible			66,850
Deferred tax assets			(9,157)
Other assets			(436)
Total assets acquired			24,657
Deposits			266
Borrowings			(232)
Other Liabilities			1,172
Total liabilities assumed			1,206
Excess of assets acquired over liabilities assumed			$ 23,451

Acquisitions - Loan Information

Acquisitions - Loan Information (Details) - Acquired Loans - Grandpoint Capital, Inc. $ in Thousands	Jul. 01, 2018USD ($)
Business Acquisition [Line Items]
Contractual amounts due	$ 3,496,905
Cash flows not expected to be collected	39,071
Expected cash flows	3,457,834
Interest component of expected cash flows	1,105,117
Fair value of acquired loans	$ 2,352,717

Acquisitions - Pro Forma Inform

Acquisitions - Pro Forma Information (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2018USD ($)$ / shares
Business Combinations [Abstract]
Net interest and other income | $	$ 363,538
Net income | $	$ 120,400
Basic earnings per share (in dollars per share) | $ / shares	$ 1.95
Diluted earnings per share (in dollars per share) | $ / shares	$ 1.93

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Investment securities available-for-sale:
Total	$ 1,214,203	$ 1,111,168
Unrealized Gain	44,030	6,263
Unrealized Loss	(1,578)	(14,209)
Estimated Fair Value	1,256,655	1,103,222
Investment securities held-to-maturity:
Amortized Cost	40,433	45,210
Unrealized Gain	967	148
Unrealized Loss	(98)	(686)
Estimated Fair Value	41,302	44,672
Total investment securities
Amortized Cost	1,254,636	1,156,378
Unrealized Gain	44,997	6,411
Unrealized Loss	(1,676)	(14,895)
Estimated Fair Value	1,297,957	1,147,894
U.S. Treasury
Investment securities available-for-sale:
Total	60,457	59,688
Unrealized Gain	3,733	1,224
Unrealized Loss	0	0
Estimated Fair Value	64,190	60,912
Agency
Investment securities available-for-sale:
Total	251,329	128,958
Unrealized Gain	10,778	1,631
Unrealized Loss	(549)	(519)
Estimated Fair Value	261,558	130,070
Corporate
Investment securities available-for-sale:
Total	125,564	104,158
Unrealized Gain	2,255	291
Unrealized Loss	(17)	(906)
Estimated Fair Value	127,802	103,543
Municipal bonds
Investment securities available-for-sale:
Total	279,593	238,914
Unrealized Gain	14,562	1,941
Unrealized Loss	(56)	(2,225)
Estimated Fair Value	294,099	238,630
Collateralized mortgage obligation: residential
Investment securities available-for-sale:
Total	10,514	24,699
Unrealized Gain	132	64
Unrealized Loss	(4)	(425)
Estimated Fair Value	10,642	24,338
Mortgage-backed securities: residential
Investment securities available-for-sale:
Total	486,746	554,751
Unrealized Gain	12,570	1,112
Unrealized Loss	(952)	(10,134)
Estimated Fair Value	498,364	545,729
Investment securities held-to-maturity:
Amortized Cost	38,686	43,381
Unrealized Gain	967	148
Unrealized Loss	(98)	(686)
Estimated Fair Value	39,555	42,843
Other
Investment securities held-to-maturity:
Amortized Cost	1,747	1,829
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	$ 1,747	$ 1,829

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Investment Securities
Accumulated other comprehensive income (loss) before tax amount	$ 42,500,000			$ 42,500,000		$ (7,900,000)
Accumulated other comprehensive income (loss), net of tax	30,195,000			30,195,000		(5,601,000)
Average balance of repurchase agreement facilities						15,000,000
Other than temporary impairment losses				0	$ 0
Gross gains	5,100,000	$ 406,000	$ 1,300,000	6,500,000	1,600,000
Gross losses	811,000	194,000	208,000	1,600,000	208,000
Proceeds from available-for-sale securities	191,300,000	57,200,000	378,500,000	418,500,000	$ 394,500,000
FHLB stock	17,300,000			17,300,000
FRB stock	51,600,000			51,600,000
Other stock	$ 24,000,000			24,000,000
Amount of stock repurchased by FHLB		$ 5,400,000	$ 15,000,000
Impairment loss on investments in FHLB, FRB and other stock				$ 0
HOA
Investment Securities
Value of inverse putable reverse repurchases secured by collateral						75,000
Mortgage-backed securities: residential
Investment Securities
Estimated par value of securities pledged as collateral for the Bank's inverse putable reverse repurchases						20,300,000
Fair value of securities pledged as collateral for the Bank's inverse putable reverse repurchases						$ 20,900,000

Investment Securities - Investm

Investment Securities - Investment Category and Length of Time (Details) $ in Thousands	Sep. 30, 2019USD ($)investment_security	Dec. 31, 2018USD ($)investment_security
Less than 12 Months
Number | investment_security	21	105
Fair Value	$ 88,951	$ 190,770
Gross Unrealized Holding Losses	$ (492)	$ (1,609)
12 Months or Longer
Number | investment_security	32	244
Fair Value	$ 53,820	$ 442,464
Gross Unrealized Holding Losses	$ (1,086)	$ (12,600)
Total
Number | investment_security	53	349
Fair Value	$ 142,771	$ 633,234
Gross Unrealized Holding Losses	$ (1,578)	$ (14,209)
Held-to-maturity, less than 12 months, number of securities | investment_security	0	3
Held-to-maturity, less than 12 months, fair value	$ 0	$ 11,256
Held-to-maturity, less than 12 months, gross unrealized holding losses	$ 0	$ (81)
Held-to-maturity, 12 months or longer, number of securities | investment_security	3	3
Held-to-maturity, 12 months or longer, fair value	$ 13,953	$ 15,741
Held-to-maturity, 12 months or longer, gross unrealized holding losses	$ (98)	$ (605)
Held-to-maturity, number of securities | investment_security	3	6
Held-to-maturity securities, fair value	$ 13,953	$ 26,997
Unrealized Loss	$ (98)	$ (686)
Total securities, less than 12 months, number of securities | investment_security	21	108
Total securities, less than 12 months, fair value	$ 88,951	$ 202,026
Total securities, less than 12 months, gross unrealized holding losses	$ (492)	$ (1,690)
Total securities, 12 months or longer, number of securities | investment_security	35	247
Total securities, 12 months or longer, fair value	$ 67,773	$ 458,205
Total securities, 12 months or longer, gross unrealized holding losses	$ (1,184)	$ (13,205)
Total securities, number of securities | investment_security	56	355
Total securities, fair value	$ 156,724	$ 660,231
Total securities, gross unrealized holding losses	$ (1,676)	$ (14,895)
Agency
Less than 12 Months
Number | investment_security	4	15
Fair Value	$ 30,761	$ 26,229
Gross Unrealized Holding Losses	$ (207)	$ (333)
12 Months or Longer
Number | investment_security	11	6
Fair Value	$ 15,789	$ 10,434
Gross Unrealized Holding Losses	$ (342)	$ (186)
Total
Number | investment_security	15	21
Fair Value	$ 46,550	$ 36,663
Gross Unrealized Holding Losses	$ (549)	$ (519)
Corporate
Less than 12 Months
Number | investment_security	1	9
Fair Value	$ 1,022	$ 47,805
Gross Unrealized Holding Losses	$ (13)	$ (471)
12 Months or Longer
Number | investment_security	1	8
Fair Value	$ 1,526	$ 19,369
Gross Unrealized Holding Losses	$ (4)	$ (435)
Total
Number | investment_security	2	17
Fair Value	$ 2,548	$ 67,174
Gross Unrealized Holding Losses	$ (17)	$ (906)
Municipal bonds
Less than 12 Months
Number | investment_security	10	60
Fair Value	$ 9,809	$ 45,083
Gross Unrealized Holding Losses	$ (56)	$ (369)
12 Months or Longer
Number | investment_security	0	102
Fair Value	$ 0	$ 69,693
Gross Unrealized Holding Losses	$ 0	$ (1,856)
Total
Number | investment_security	10	162
Fair Value	$ 9,809	$ 114,776
Gross Unrealized Holding Losses	$ (56)	$ (2,225)
Collateralized mortgage obligation: residential
Less than 12 Months
Number | investment_security	0	1
Fair Value	$ 0	$ 814
Gross Unrealized Holding Losses	$ 0	$ (1)
12 Months or Longer
Number | investment_security	1	8
Fair Value	$ 652	$ 18,104
Gross Unrealized Holding Losses	$ (4)	$ (424)
Total
Number | investment_security	1	9
Fair Value	$ 652	$ 18,918
Gross Unrealized Holding Losses	$ (4)	$ (425)
Mortgage-backed securities: residential
Less than 12 Months
Number | investment_security	6	20
Fair Value	$ 47,359	$ 70,839
Gross Unrealized Holding Losses	$ (216)	$ (435)
12 Months or Longer
Number | investment_security	19	120
Fair Value	$ 35,853	$ 324,864
Gross Unrealized Holding Losses	$ (736)	$ (9,699)
Total
Number | investment_security	25	140
Fair Value	$ 83,212	$ 395,703
Gross Unrealized Holding Losses	$ (952)	$ (10,134)
Held-to-maturity, less than 12 months, number of securities | investment_security	0	3
Held-to-maturity, less than 12 months, fair value	$ 0	$ 11,256
Held-to-maturity, less than 12 months, gross unrealized holding losses	$ 0	$ (81)
Held-to-maturity, 12 months or longer, number of securities | investment_security	3	3
Held-to-maturity, 12 months or longer, fair value	$ 13,953	$ 15,741
Held-to-maturity, 12 months or longer, gross unrealized holding losses	$ (98)	$ (605)
Held-to-maturity, number of securities | investment_security	3	6
Held-to-maturity securities, fair value	$ 13,953	$ 26,997
Unrealized Loss	$ (98)	$ (686)

Investment Securities - By Cont

Investment Securities - By Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Amortized Cost
Due in One Year or Less	$ 498
Due after One Year through Five Years	68,974
Due after Five Years through Ten Years	534,853
Due after Ten Years	609,878
Total	1,214,203	$ 1,111,168
Fair Value
Due in One Year or Less	499
Due after One Year through Five Years	71,517
Due after Five Years through Ten Years	551,887
Due after Ten Years	632,752
Total	1,256,655	1,103,222
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	913
Due after Five Years through Ten Years	0
Due after Ten Years	39,520
Amortized Cost	40,433	45,210
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	953
Due after Five Years through Ten Years	0
Due after Ten Years	40,349
Total	41,302	44,672
Amortized Cost
Due in One Year or Less	498
Due after One Year through Five Years	69,887
Due after Five Years through Ten Years	534,853
Due after Ten Years	649,398
Total	1,254,636
Fair Value
Due in One Year or Less	499
Due after One Year through Five Years	72,470
Due after Five Years through Ten Years	551,887
Due after Ten Years	673,101
Total	1,297,957
U.S. Treasury
Amortized Cost
Due in One Year or Less	498
Due after One Year through Five Years	20,171
Due after Five Years through Ten Years	39,788
Due after Ten Years	0
Total	60,457	59,688
Fair Value
Due in One Year or Less	499
Due after One Year through Five Years	20,702
Due after Five Years through Ten Years	42,989
Due after Ten Years	0
Total	64,190	60,912
Agency
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	42,658
Due after Five Years through Ten Years	165,240
Due after Ten Years	43,431
Total	251,329	128,958
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	44,453
Due after Five Years through Ten Years	171,635
Due after Ten Years	45,470
Total	261,558	130,070
Corporate
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	0
Due after Five Years through Ten Years	125,564
Due after Ten Years	0
Total	125,564	104,158
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	0
Due after Five Years through Ten Years	127,802
Due after Ten Years	0
Total	127,802	103,543
Municipal bonds
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	3,569
Due after Five Years through Ten Years	34,911
Due after Ten Years	241,113
Total	279,593	238,914
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	3,710
Due after Five Years through Ten Years	36,057
Due after Ten Years	254,332
Total	294,099	238,630
Collateralized mortgage obligation: residential
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	0
Due after Five Years through Ten Years	657
Due after Ten Years	9,857
Total	10,514	24,699
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	0
Due after Five Years through Ten Years	652
Due after Ten Years	9,990
Total	10,642	24,338
Mortgage-backed securities: residential
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	2,576
Due after Five Years through Ten Years	168,693
Due after Ten Years	315,477
Total	486,746	554,751
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	2,652
Due after Five Years through Ten Years	172,752
Due after Ten Years	322,960
Total	498,364	545,729
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	913
Due after Five Years through Ten Years	0
Due after Ten Years	37,773
Amortized Cost	38,686	43,381
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	953
Due after Five Years through Ten Years	0
Due after Ten Years	38,602
Total	39,555	$ 42,843
Other
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	0
Due after Five Years through Ten Years	0
Due after Ten Years	1,747
Amortized Cost	1,747
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	0
Due after Five Years through Ten Years	0
Due after Ten Years	1,747
Total	$ 1,747

Loans Held for Investment - Com

Loans Held for Investment - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Loans Held for Investment
Gross loans held for investment	$ 8,767,016		$ 8,846,286
Deferred loan origination (fees)/costs and (discounts)/premiums, net	(9,540)		(9,468)
Loans held for investment	8,757,476		8,836,818
Allowance for loan losses	(35,000)	$ (35,026)	(36,072)	$ (33,306)	$ (31,747)	$ (28,936)
Loans held for investment, net	8,722,476		8,800,746
Loans held for sale, at lower of cost or fair value	7,092		5,719
Unaccreted mark-to-market discount	46,800		61,000
Business loans
Loans Held for Investment
Gross loans held for investment	4,106,447		4,141,362
Business loans | Commercial and industrial
Loans Held for Investment
Gross loans held for investment	1,233,938		1,364,423
Allowance for loan losses	(10,530)	(11,031)	(10,821)	(10,384)	(10,164)	(9,721)
Business loans | Franchise
Loans Held for Investment
Gross loans held for investment	894,023		765,416
Allowance for loan losses	(6,733)	(6,765)	(6,500)	(6,332)	(6,181)	(5,797)
Business loans | Commercial owner occupied
Loans Held for Investment
Gross loans held for investment	1,678,888		1,679,122
Allowance for loan losses	(1,726)	(1,490)	(1,386)	(1,213)	(1,137)	(767)
Business loans | SBA
Loans Held for Investment
Gross loans held for investment	179,965		193,882
Allowance for loan losses	(4,381)	(3,363)	(4,288)	(2,827)	(2,575)	(2,890)
Business loans | Agribusiness
Loans Held for Investment
Gross loans held for investment	119,633		138,519
Allowance for loan losses	(2,366)	(2,765)	(3,283)	(3,565)	(2,694)	(1,291)
Real estate loans
Loans Held for Investment
Gross loans held for investment	4,620,021		4,615,500
Real estate loans | Commercial non-owner occupied
Loans Held for Investment
Gross loans held for investment	2,053,590		2,003,174
Allowance for loan losses	(1,878)	(1,765)	(1,604)	(1,483)	(1,450)	(1,266)
Real estate loans | Multi-family
Loans Held for Investment
Gross loans held for investment	1,611,904		1,535,289
Allowance for loan losses	(715)	(705)	(725)	(623)	(563)	(607)
Real estate loans | One-to-four family
Loans Held for Investment
Gross loans held for investment	273,182		356,264
Allowance for loan losses	(691)	(704)	(805)	(719)	(698)	(803)
Real estate loans | Construction
Loans Held for Investment
Gross loans held for investment	478,961		523,643
Allowance for loan losses	(4,158)	(4,750)	(5,166)	(4,820)	(4,809)	(4,569)
Real estate loans | Farmland
Loans Held for Investment
Gross loans held for investment	171,667		150,502
Allowance for loan losses	(838)	(809)	(503)	(375)	(405)	(137)
Real estate loans | Land
Loans Held for Investment
Gross loans held for investment	30,717		46,628
Allowance for loan losses	(633)	(658)	(772)	(868)	(972)	(993)
Consumer loans | Consumer loans
Loans Held for Investment
Gross loans held for investment	40,548		89,424
Allowance for loan losses	$ (351)	$ (221)	$ (219)	$ (97)	$ (99)	$ (95)

Loans Held for Investment - Nar

Loans Held for Investment - Narrative (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2019USD ($)areagrade	Dec. 31, 2018USD ($)
Loans Held for Investment
Servicing rights retained from guaranteed portion of SBA loans sold	$ 7,900,000	$ 8,500,000
Unpaid principal balance for loans and participations serviced for others	646,700,000	635,300,000
Secured loans limit to one borrower	557,500,000
Unsecured loans limit to one borrower	334,500,000
Aggregate outstanding balance of loans to one borrower of secured credit	$ 125,300,000
Number of areas where the entity's credit quality is maintained and credit risk managed | area	2
Number of Pass scale grades | grade	6
Nonaccrual loans	$ 8,105,000	4,857,000
Loans 90 days or more past due and still accruing	0	213,000
Investment in TDR	0	0
Consumer mortgage loans collateralized by residential real estate, foreclosure proceedings in process	0	0
Outstanding balance	1,700,000
Purchased credit impaired loans, nonaccrual status	0
Secured Debt
Loans Held for Investment
Aggregate outstanding balance of loans to one borrower of secured credit	101,500,000
Unsecured Debt
Loans Held for Investment
Aggregate outstanding balance of loans to one borrower of secured credit	23,800,000
SBA
Loans Held for Investment
Unpaid principal balance for loans and participations serviced for others	$ 492,800,000	$ 519,800,000

Loans Held for Investment - Int

Loans Held for Investment - Internal Risk Grading System (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Credit Risk Grades
Gross loans	$ 8,767,016	$ 8,846,286
Pass
Credit Risk Grades
Gross loans	8,706,847	8,758,874
Special Mention
Credit Risk Grades
Gross loans	21,015	25,956
Substandard
Credit Risk Grades
Gross loans	39,154	61,456
Doubtful
Credit Risk Grades
Gross loans	0	0
Business loans | Commercial and industrial
Credit Risk Grades
Gross loans	1,233,938	1,364,423
Business loans | Franchise
Credit Risk Grades
Gross loans	894,023	765,416
Business loans | Commercial owner occupied
Credit Risk Grades
Gross loans	1,678,888	1,679,122
Business loans | SBA
Credit Risk Grades
Gross loans	179,965	193,882
Business loans | Agribusiness
Credit Risk Grades
Gross loans	119,633	138,519
Business loans | Pass | Commercial and industrial
Credit Risk Grades
Gross loans	1,219,358	1,340,284
Business loans | Pass | Franchise
Credit Risk Grades
Gross loans	880,632	760,795
Business loans | Pass | Commercial owner occupied
Credit Risk Grades
Gross loans	1,669,152	1,660,994
Business loans | Pass | SBA
Credit Risk Grades
Gross loans	171,393	184,687
Business loans | Pass | Agribusiness
Credit Risk Grades
Gross loans	107,551	125,355
Business loans | Special Mention | Commercial and industrial
Credit Risk Grades
Gross loans	4,438	12,005
Business loans | Special Mention | Franchise
Credit Risk Grades
Gross loans	13,375	4,431
Business loans | Special Mention | Commercial owner occupied
Credit Risk Grades
Gross loans	1,321	1,580
Business loans | Special Mention | SBA
Credit Risk Grades
Gross loans	1,881	2,289
Business loans | Special Mention | Agribusiness
Credit Risk Grades
Gross loans	0	0
Business loans | Substandard | Commercial and industrial
Credit Risk Grades
Gross loans	10,142	12,134
Business loans | Substandard | Franchise
Credit Risk Grades
Gross loans	16	190
Business loans | Substandard | Commercial owner occupied
Credit Risk Grades
Gross loans	8,415	16,548
Business loans | Substandard | SBA
Credit Risk Grades
Gross loans	6,691	6,906
Business loans | Substandard | Agribusiness
Credit Risk Grades
Gross loans	12,082	13,164
Business loans | Doubtful | Commercial and industrial
Credit Risk Grades
Gross loans	0	0
Business loans | Doubtful | Franchise
Credit Risk Grades
Gross loans	0	0
Business loans | Doubtful | Commercial owner occupied
Credit Risk Grades
Gross loans	0	0
Business loans | Doubtful | SBA
Credit Risk Grades
Gross loans	0	0
Business loans | Doubtful | Agribusiness
Credit Risk Grades
Gross loans	0	0
Real estate loans | Commercial non-owner occupied
Credit Risk Grades
Gross loans	2,053,590	2,003,174
Real estate loans | Multi-family
Credit Risk Grades
Gross loans	1,611,904	1,535,289
Real estate loans | One-to-four family
Credit Risk Grades
Gross loans	273,182	356,264
Real estate loans | Construction
Credit Risk Grades
Gross loans	478,961	523,643
Real estate loans | Farmland
Credit Risk Grades
Gross loans	171,667	150,502
Real estate loans | Land
Credit Risk Grades
Gross loans	30,717	46,628
Real estate loans | Pass | Commercial non-owner occupied
Credit Risk Grades
Gross loans	2,052,813	1,996,756
Real estate loans | Pass | Multi-family
Credit Risk Grades
Gross loans	1,611,686	1,530,567
Real estate loans | Pass | One-to-four family
Credit Risk Grades
Gross loans	272,555	350,083
Real estate loans | Pass | Construction
Credit Risk Grades
Gross loans	478,961	523,643
Real estate loans | Pass | Farmland
Credit Risk Grades
Gross loans	171,667	150,381
Real estate loans | Pass | Land
Credit Risk Grades
Gross loans	30,585	46,008
Real estate loans | Special Mention | Commercial non-owner occupied
Credit Risk Grades
Gross loans	0	731
Real estate loans | Special Mention | Multi-family
Credit Risk Grades
Gross loans	0	4,060
Real estate loans | Special Mention | One-to-four family
Credit Risk Grades
Gross loans	0	728
Real estate loans | Special Mention | Construction
Credit Risk Grades
Gross loans	0	0
Real estate loans | Special Mention | Farmland
Credit Risk Grades
Gross loans	0	0
Real estate loans | Special Mention | Land
Credit Risk Grades
Gross loans	0	132
Real estate loans | Substandard | Commercial non-owner occupied
Credit Risk Grades
Gross loans	777	5,687
Real estate loans | Substandard | Multi-family
Credit Risk Grades
Gross loans	218	662
Real estate loans | Substandard | One-to-four family
Credit Risk Grades
Gross loans	627	5,453
Real estate loans | Substandard | Construction
Credit Risk Grades
Gross loans	0	0
Real estate loans | Substandard | Farmland
Credit Risk Grades
Gross loans	0	121
Real estate loans | Substandard | Land
Credit Risk Grades
Gross loans	132	488
Real estate loans | Doubtful | Commercial non-owner occupied
Credit Risk Grades
Gross loans	0	0
Real estate loans | Doubtful | Multi-family
Credit Risk Grades
Gross loans	0	0
Real estate loans | Doubtful | One-to-four family
Credit Risk Grades
Gross loans	0	0
Real estate loans | Doubtful | Construction
Credit Risk Grades
Gross loans	0	0
Real estate loans | Doubtful | Farmland
Credit Risk Grades
Gross loans	0	0
Real estate loans | Doubtful | Land
Credit Risk Grades
Gross loans	0	0
Consumer loans | Consumer loans
Credit Risk Grades
Gross loans	40,548	89,424
Consumer loans | Pass | Consumer loans
Credit Risk Grades
Gross loans	40,494	89,321
Consumer loans | Special Mention | Consumer loans
Credit Risk Grades
Gross loans	0	0
Consumer loans | Substandard | Consumer loans
Credit Risk Grades
Gross loans	54	103
Consumer loans | Doubtful | Consumer loans
Credit Risk Grades
Gross loans	$ 0	$ 0

Loans Held for Investment - Del

Loans Held for Investment - Delinquencies (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Other information concerning the credit quality
Total Gross Loans	$ 8,767,016	$ 8,846,286
Non-accruing	8,105	4,857
Current
Other information concerning the credit quality
Current	8,755,786	8,833,433
30-59
Other information concerning the credit quality
Days Past Due	1,725	7,046
60-89
Other information concerning the credit quality
Days Past Due	3,212	1,242
90
Other information concerning the credit quality
Days Past Due	6,293	4,565
Business loans | Commercial and industrial
Other information concerning the credit quality
Total Gross Loans	1,233,938	1,364,423
Non-accruing	2,950	931
Business loans | Franchise
Other information concerning the credit quality
Total Gross Loans	894,023	765,416
Non-accruing	16	190
Business loans | Commercial owner occupied
Other information concerning the credit quality
Total Gross Loans	1,678,888	1,679,122
Non-accruing	1,405	599
Business loans | SBA
Other information concerning the credit quality
Total Gross Loans	179,965	193,882
Non-accruing	2,586	2,739
Business loans | Agribusiness
Other information concerning the credit quality
Total Gross Loans	119,633	138,519
Non-accruing	0	0
Business loans | Current | Commercial and industrial
Other information concerning the credit quality
Current	1,229,223	1,361,979
Business loans | Current | Franchise
Other information concerning the credit quality
Current	893,999	759,546
Business loans | Current | Commercial owner occupied
Other information concerning the credit quality
Current	1,677,101	1,677,967
Business loans | Current | SBA
Other information concerning the credit quality
Current	176,541	190,732
Business loans | Current | Agribusiness
Other information concerning the credit quality
Current	119,633	138,519
Business loans | 30-59 | Commercial and industrial
Other information concerning the credit quality
Days Past Due	101	309
Business loans | 30-59 | Franchise
Other information concerning the credit quality
Days Past Due	8	5,680
Business loans | 30-59 | Commercial owner occupied
Other information concerning the credit quality
Days Past Due	382	343
Business loans | 30-59 | SBA
Other information concerning the credit quality
Days Past Due	731	524
Business loans | 30-59 | Agribusiness
Other information concerning the credit quality
Days Past Due	0	0
Business loans | 60-89 | Commercial and industrial
Other information concerning the credit quality
Days Past Due	3,105	1,204
Business loans | 60-89 | Franchise
Other information concerning the credit quality
Days Past Due	0	0
Business loans | 60-89 | Commercial owner occupied
Other information concerning the credit quality
Days Past Due	0	0
Business loans | 60-89 | SBA
Other information concerning the credit quality
Days Past Due	107	0
Business loans | 60-89 | Agribusiness
Other information concerning the credit quality
Days Past Due	0	0
Business loans | 90 | Commercial and industrial
Other information concerning the credit quality
Days Past Due	1,509	931
Business loans | 90 | Franchise
Other information concerning the credit quality
Days Past Due	16	190
Business loans | 90 | Commercial owner occupied
Other information concerning the credit quality
Days Past Due	1,405	812
Business loans | 90 | SBA
Other information concerning the credit quality
Days Past Due	2,586	2,626
Business loans | 90 | Agribusiness
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | Commercial non-owner occupied
Other information concerning the credit quality
Total Gross Loans	2,053,590	2,003,174
Non-accruing	777	0
Real estate loans | Multi-family
Other information concerning the credit quality
Total Gross Loans	1,611,904	1,535,289
Non-accruing	0	0
Real estate loans | One-to-four family
Other information concerning the credit quality
Total Gross Loans	273,182	356,264
Non-accruing	371	398
Real estate loans | Construction
Other information concerning the credit quality
Total Gross Loans	478,961	523,643
Non-accruing	0	0
Real estate loans | Farmland
Other information concerning the credit quality
Total Gross Loans	171,667	150,502
Non-accruing	0	0
Real estate loans | Land
Other information concerning the credit quality
Total Gross Loans	30,717	46,628
Non-accruing	0	0
Real estate loans | Current | Commercial non-owner occupied
Other information concerning the credit quality
Current	2,052,813	2,003,174
Real estate loans | Current | Multi-family
Other information concerning the credit quality
Current	1,611,904	1,535,275
Real estate loans | Current | One-to-four family
Other information concerning the credit quality
Current	272,679	356,219
Real estate loans | Current | Construction
Other information concerning the credit quality
Current	478,961	523,643
Real estate loans | Current | Farmland
Other information concerning the credit quality
Current	171,667	150,502
Real estate loans | Current | Land
Other information concerning the credit quality
Current	30,717	46,628
Real estate loans | 30-59 | Commercial non-owner occupied
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 30-59 | Multi-family
Other information concerning the credit quality
Days Past Due	0	14
Real estate loans | 30-59 | One-to-four family
Other information concerning the credit quality
Days Past Due	503	30
Real estate loans | 30-59 | Construction
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 30-59 | Farmland
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 30-59 | Land
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 60-89 | Commercial non-owner occupied
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 60-89 | Multi-family
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 60-89 | One-to-four family
Other information concerning the credit quality
Days Past Due	0	9
Real estate loans | 60-89 | Construction
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 60-89 | Farmland
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 60-89 | Land
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 90 | Commercial non-owner occupied
Other information concerning the credit quality
Days Past Due	777	0
Real estate loans | 90 | Multi-family
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 90 | One-to-four family
Other information concerning the credit quality
Days Past Due	0	6
Real estate loans | 90 | Construction
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 90 | Farmland
Other information concerning the credit quality
Days Past Due	0	0
Real estate loans | 90 | Land
Other information concerning the credit quality
Days Past Due	0	0
Consumer loans | Consumer loans
Other information concerning the credit quality
Total Gross Loans	40,548	89,424
Non-accruing	0	0
Consumer loans | Current | Consumer loans
Other information concerning the credit quality
Current	40,548	89,249
Consumer loans | 30-59 | Consumer loans
Other information concerning the credit quality
Days Past Due	0	146
Consumer loans | 60-89 | Consumer loans
Other information concerning the credit quality
Days Past Due	0	29
Consumer loans | 90 | Consumer loans
Other information concerning the credit quality
Days Past Due	$ 0	$ 0

Loans Held for Investment - C_2

Loans Held for Investment - Company's Investment in Impaired Loans (Details) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Impaired Loans
Unpaid Principal Balance	$ 17,210,000			$ 17,210,000		$ 17,440,000
Total impaired loans	15,009,000			15,009,000		12,458,000
With Specific Allowance	0			0		1,038,000
Without Specific Allowance	15,009,000			15,009,000		11,420,000
Specific Allowance for Impaired Loans	0		$ 250,000	0	$ 250,000	584,000
Average Recorded Investment	15,296,000	$ 18,575,000	6,456,000	17,219,000	7,234,000
Interest Income Recognized	104,000	109,000	0	303,000	0
Business loans | Commercial and industrial
Impaired Loans
Unpaid Principal Balance	3,099,000			3,099,000		1,071,000
Total impaired loans	2,950,000			2,950,000		1,023,000
With Specific Allowance	0			0		550,000
Without Specific Allowance	2,950,000			2,950,000		473,000
Specific Allowance for Impaired Loans	0		0	0	0	118,000
Average Recorded Investment	3,078,000	2,614,000	1,030,000	2,565,000	1,161,000
Interest Income Recognized	0	0	0	0	0
Business loans | Franchise
Impaired Loans
Unpaid Principal Balance	697,000			697,000		190,000
Total impaired loans	16,000			16,000		189,000
With Specific Allowance	0			0		0
Without Specific Allowance	16,000			16,000		189,000
Specific Allowance for Impaired Loans	0		0	0	0	0
Average Recorded Investment	679,000	4,047,000	209,000	2,901,000	93,000
Interest Income Recognized	0	0	0	0	0
Business loans | Commercial owner occupied
Impaired Loans
Unpaid Principal Balance	1,427,000			1,427,000		628,000
Total impaired loans	1,406,000			1,406,000		599,000
With Specific Allowance	0			0		0
Without Specific Allowance	1,406,000			1,406,000		599,000
Specific Allowance for Impaired Loans	0		0	0	0	0
Average Recorded Investment	845,000	564,000	0	662,000	1,931,000
Interest Income Recognized	0	0	0	0	0
Business loans | SBA
Impaired Loans
Unpaid Principal Balance	3,320,000			3,320,000		7,598,000
Total impaired loans	2,586,000			2,586,000		2,739,000
With Specific Allowance	0			0		488,000
Without Specific Allowance	2,586,000			2,586,000		2,251,000
Specific Allowance for Impaired Loans	0		250,000	0	250,000	466,000
Average Recorded Investment	2,488,000	3,139,000	1,914,000	7,360,000	1,505,000
Interest Income Recognized	0	0	0	303,000	0
Business loans | Agribusiness
Impaired Loans
Unpaid Principal Balance	6,903,000			6,903,000		7,500,000
Total impaired loans	6,903,000			6,903,000		7,500,000
With Specific Allowance	0			0		0
Without Specific Allowance	6,903,000			6,903,000		7,500,000
Specific Allowance for Impaired Loans	0		0	0	0	0
Average Recorded Investment	7,092,000	7,489,000	0	2,969,000	0
Interest Income Recognized	104,000	109,000	0	0	0
Real estate loans | Commercial non-owner occupied
Impaired Loans
Unpaid Principal Balance	1,351,000			1,351,000
Total impaired loans	777,000			777,000
With Specific Allowance	0			0
Without Specific Allowance	777,000			777,000
Specific Allowance for Impaired Loans	0		0	0	0
Average Recorded Investment	421,000	162,000	1,290,000	194,000	573,000
Interest Income Recognized	0	0	0	0	0
Real estate loans | Multi-family
Impaired Loans
Specific Allowance for Impaired Loans	0		0	0	0
Average Recorded Investment	0	0	589,000	0	666,000
Interest Income Recognized	0	0	0	0	0
Real estate loans | One-to-four family
Impaired Loans
Unpaid Principal Balance	413,000			413,000		453,000
Total impaired loans	371,000			371,000		408,000
With Specific Allowance	0			0		0
Without Specific Allowance	371,000			371,000		408,000
Specific Allowance for Impaired Loans	0		0	0	0	$ 0
Average Recorded Investment	373,000	383,000	1,406,000	383,000	1,258,000
Interest Income Recognized	0	0	0	0	0
Real estate loans | Land
Impaired Loans
Specific Allowance for Impaired Loans	0		0	0	0
Average Recorded Investment	320,000	160,000	5,000	160,000	6,000
Interest Income Recognized	0	0	0	0	0
Consumer loans | Consumer loans
Impaired Loans
Specific Allowance for Impaired Loans	0		0	0	0
Average Recorded Investment	0	17,000	13,000	25,000	41,000
Interest Income Recognized	$ 0	$ 0	$ 0	$ 0	$ 0

Loans Held for Investment - C_3

Loans Held for Investment - Components of Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Receivables [Abstract]
Nonaccrual loans	$ 8,105	$ 4,857
Accruing loans	6,904	7,601
Total impaired loans	$ 15,009	$ 12,458

Loans Held for Investment - Pur

Loans Held for Investment - Purchased Credit Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans Held for Investment
Total purchased credit impaired	$ 17,210	$ 17,440
Business loans | Commercial and industrial
Loans Held for Investment
Total purchased credit impaired	3,099	1,071
Business loans | Commercial owner occupied
Loans Held for Investment
Total purchased credit impaired	1,427	628
Business loans | SBA
Loans Held for Investment
Total purchased credit impaired	3,320	7,598
Real estate loans | Commercial non-owner occupied
Loans Held for Investment
Total purchased credit impaired	1,351
Acquired Banks
Loans Held for Investment
Total purchased credit impaired	1,731	2,182
Acquired Banks | Business loans | Commercial and industrial
Loans Held for Investment
Total purchased credit impaired	0	10
Acquired Banks | Business loans | Commercial owner occupied
Loans Held for Investment
Total purchased credit impaired	577	632
Acquired Banks | Business loans | SBA
Loans Held for Investment
Total purchased credit impaired	1,154	1,265
Acquired Banks | Real estate loans | Commercial non-owner occupied
Loans Held for Investment
Total purchased credit impaired	$ 0	$ 275

Loans Held for Investment - Acc

Loans Held for Investment - Accretable Yield Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Accretable yield on purchased credit impaired
Balance at the beginning of period	$ 296	$ 332	$ 1,473	$ 411	$ 3,019
Additions	0	0	483	0	483
Accretion	(46)	(45)	(162)	(170)	(668)
Payoffs	0	(9)	(1)	(9)	(1,819)
Sales	0	0	0	0	0
Reclassification from nonaccretable difference	(18)	18	195	0	973
Balance at the end of period	$ 232	$ 296	$ 1,988	$ 232	$ 1,988

Allowance for Loan Losses (Deta

Allowance for Loan Losses (Details) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 35,026,000	$ 36,072,000	$ 31,747,000	$ 36,072,000	$ 28,936,000	$ 28,936,000
Charge-offs	(1,525,000)		(229,000)	(5,468,000)	(1,248,000)
Recoveries	134,000		142,000	277,000	366,000
Provisions for (reduction in) loan losses	1,365,000		1,646,000	4,119,000	5,252,000
Balance, at the end of the period	35,000,000		33,306,000	35,000,000	33,306,000	36,072,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		250,000	0	250,000	584,000
Amount of allowance attributed to: General portfolio allocation	35,000,000		33,056,000	35,000,000	33,056,000
Loans individually evaluated for impairment	15,009,000		7,268,000	$ 15,009,000	$ 7,268,000
Specific reserves to total loans individually evaluated for impairment				0.00%	3.44%
Loans collectively evaluated for impairment	8,752,007,000		8,760,584,000	$ 8,752,007,000	$ 8,760,584,000
General reserves to total loans collectively evaluated for impairment				0.40%	0.38%
Gross loans, excluding loan receivable held for sale	8,767,016,000		8,767,852,000	$ 8,767,016,000	$ 8,767,852,000
Total allowance to gross loans				0.40%	0.38%
Business loans | Commercial and industrial
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	11,031,000	10,821,000	10,164,000	$ 10,821,000	$ 9,721,000	9,721,000
Charge-offs	(290,000)		(100,000)	(985,000)	(1,011,000)
Recoveries	54,000		120,000	168,000	283,000
Provisions for (reduction in) loan losses	(265,000)		200,000	526,000	1,391,000
Balance, at the end of the period	10,530,000		10,384,000	10,530,000	10,384,000	10,821,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0	118,000
Amount of allowance attributed to: General portfolio allocation	10,530,000		10,384,000	10,530,000	10,384,000
Loans individually evaluated for impairment	2,950,000		1,027,000	$ 2,950,000	$ 1,027,000
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	1,230,988,000		1,358,814,000	$ 1,230,988,000	$ 1,358,814,000
General reserves to total loans collectively evaluated for impairment				0.86%	0.76%
Gross loans, excluding loan receivable held for sale	1,233,938,000		1,359,841,000	$ 1,233,938,000	$ 1,359,841,000
Total allowance to gross loans				0.85%	0.76%
Business loans | Franchise
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	6,765,000	6,500,000	6,181,000	$ 6,500,000	$ 5,797,000	5,797,000
Charge-offs	(995,000)		0	(2,531,000)	0
Recoveries	0		0	0	0
Provisions for (reduction in) loan losses	963,000		151,000	2,764,000	535,000
Balance, at the end of the period	6,733,000		6,332,000	6,733,000	6,332,000	6,500,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0	0
Amount of allowance attributed to: General portfolio allocation	6,733,000		6,332,000	6,733,000	6,332,000
Loans individually evaluated for impairment	16,000		209,000	$ 16,000	$ 209,000
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	894,007,000		735,157,000	$ 894,007,000	$ 735,157,000
General reserves to total loans collectively evaluated for impairment				0.75%	0.86%
Gross loans, excluding loan receivable held for sale	894,023,000		735,366,000	$ 894,023,000	$ 735,366,000
Total allowance to gross loans				0.75%	0.86%
Business loans | Commercial owner occupied
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	1,490,000	1,386,000	1,137,000	$ 1,386,000	$ 767,000	767,000
Charge-offs	0		0	0	0
Recoveries	8,000		8,000	31,000	32,000
Provisions for (reduction in) loan losses	228,000		68,000	309,000	414,000
Balance, at the end of the period	1,726,000		1,213,000	1,726,000	1,213,000	1,386,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0	0
Amount of allowance attributed to: General portfolio allocation	1,726,000		1,213,000	1,726,000	1,213,000
Loans individually evaluated for impairment	1,406,000		0	$ 1,406,000	$ 0
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	1,677,482,000		1,675,528,000	$ 1,677,482,000	$ 1,675,528,000
General reserves to total loans collectively evaluated for impairment				0.10%	0.07%
Gross loans, excluding loan receivable held for sale	1,678,888,000		1,675,528,000	$ 1,678,888,000	$ 1,675,528,000
Total allowance to gross loans				0.10%	0.07%
Business loans | SBA
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	3,363,000	4,288,000	2,575,000	$ 4,288,000	$ 2,890,000	2,890,000
Charge-offs	(143,000)		(44,000)	(1,362,000)	(100,000)
Recoveries	62,000		8,000	66,000	43,000
Provisions for (reduction in) loan losses	1,099,000		288,000	1,389,000	(6,000)
Balance, at the end of the period	4,381,000		2,827,000	4,381,000	2,827,000	4,288,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		250,000	0	250,000	466,000
Amount of allowance attributed to: General portfolio allocation	4,381,000		2,577,000	4,381,000	2,577,000
Loans individually evaluated for impairment	2,586,000		2,748,000	$ 2,586,000	$ 2,748,000
Specific reserves to total loans individually evaluated for impairment				0.00%	9.10%
Loans collectively evaluated for impairment	177,379,000		190,739,000	$ 177,379,000	$ 190,739,000
General reserves to total loans collectively evaluated for impairment				2.47%	1.35%
Gross loans, excluding loan receivable held for sale	179,965,000		193,487,000	$ 179,965,000	$ 193,487,000
Total allowance to gross loans				2.43%	1.46%
Business loans | Agribusiness
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	2,765,000	3,283,000	2,694,000	$ 3,283,000	$ 1,291,000	1,291,000
Charge-offs	0		0	0	0
Recoveries	0		0	0	0
Provisions for (reduction in) loan losses	(399,000)		871,000	(917,000)	2,274,000
Balance, at the end of the period	2,366,000		3,565,000	2,366,000	3,565,000	3,283,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0	0
Amount of allowance attributed to: General portfolio allocation	2,366,000		3,565,000	2,366,000	3,565,000
Loans individually evaluated for impairment	6,903,000		0	$ 6,903,000	$ 0
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	112,730,000		133,241,000	$ 112,730,000	$ 133,241,000
General reserves to total loans collectively evaluated for impairment				2.10%	2.68%
Gross loans, excluding loan receivable held for sale	119,633,000		133,241,000	$ 119,633,000	$ 133,241,000
Total allowance to gross loans				1.98%	2.68%
Real estate loans | Commercial non-owner occupied
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	1,765,000	1,604,000	1,450,000	$ 1,604,000	$ 1,266,000	1,266,000
Charge-offs	(86,000)		0	(574,000)	0
Recoveries	0		0	0	0
Provisions for (reduction in) loan losses	199,000		33,000	848,000	217,000
Balance, at the end of the period	1,878,000		1,483,000	1,878,000	1,483,000	1,604,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0
Amount of allowance attributed to: General portfolio allocation	1,878,000		1,483,000	1,878,000	1,483,000
Loans individually evaluated for impairment	777,000		1,290,000	$ 777,000	$ 1,290,000
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	2,052,813,000		1,929,875,000	$ 2,052,813,000	$ 1,929,875,000
General reserves to total loans collectively evaluated for impairment				0.09%	0.08%
Gross loans, excluding loan receivable held for sale	2,053,590,000		1,931,165,000	$ 2,053,590,000	$ 1,931,165,000
Total allowance to gross loans				0.09%	0.08%
Real estate loans | Multi-family
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	705,000	725,000	563,000	$ 725,000	$ 607,000	607,000
Charge-offs	0		0	0	0
Recoveries	0		0	0	0
Provisions for (reduction in) loan losses	10,000		60,000	(10,000)	16,000
Balance, at the end of the period	715,000		623,000	715,000	623,000	725,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0
Amount of allowance attributed to: General portfolio allocation	715,000		623,000	715,000	623,000
Loans individually evaluated for impairment	0		589,000	$ 0	$ 589,000
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	1,611,904,000		1,554,103,000	$ 1,611,904,000	$ 1,554,103,000
General reserves to total loans collectively evaluated for impairment				0.04%	0.04%
Gross loans, excluding loan receivable held for sale	1,611,904,000		1,554,692,000	$ 1,611,904,000	$ 1,554,692,000
Total allowance to gross loans				0.04%	0.04%
Real estate loans | One-to-four family
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	704,000	805,000	698,000	$ 805,000	$ 803,000	803,000
Charge-offs	0		0	0	0
Recoveries	1,000		0	2,000	1,000
Provisions for (reduction in) loan losses	(14,000)		21,000	(116,000)	(85,000)
Balance, at the end of the period	691,000		719,000	691,000	719,000	805,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0	0
Amount of allowance attributed to: General portfolio allocation	691,000		719,000	691,000	719,000
Loans individually evaluated for impairment	371,000		1,388,000	$ 371,000	$ 1,388,000
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	272,811,000		375,229,000	$ 272,811,000	$ 375,229,000
General reserves to total loans collectively evaluated for impairment				0.25%	0.19%
Gross loans, excluding loan receivable held for sale	273,182,000		376,617,000	$ 273,182,000	$ 376,617,000
Total allowance to gross loans				0.25%	0.19%
Real estate loans | Construction
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	4,750,000	5,166,000	4,809,000	$ 5,166,000	$ 4,569,000	4,569,000
Charge-offs	0		0	0	0
Recoveries	0		0	0	0
Provisions for (reduction in) loan losses	(592,000)		11,000	(1,008,000)	251,000
Balance, at the end of the period	4,158,000		4,820,000	4,158,000	4,820,000	5,166,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0
Amount of allowance attributed to: General portfolio allocation	4,158,000		4,820,000	4,158,000	4,820,000
Loans individually evaluated for impairment	0		0	$ 0	$ 0
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	478,961,000		504,708,000	$ 478,961,000	$ 504,708,000
General reserves to total loans collectively evaluated for impairment				0.87%	0.96%
Gross loans, excluding loan receivable held for sale	478,961,000		504,708,000	$ 478,961,000	$ 504,708,000
Total allowance to gross loans				0.87%	0.96%
Real estate loans | Farmland
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	809,000	503,000	405,000	$ 503,000	$ 137,000	137,000
Charge-offs	0		0	0	0
Recoveries	0		0	0	0
Provisions for (reduction in) loan losses	29,000		(30,000)	335,000	238,000
Balance, at the end of the period	838,000		375,000	838,000	375,000	503,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0
Amount of allowance attributed to: General portfolio allocation	838,000		375,000	838,000	375,000
Loans individually evaluated for impairment	0		0	$ 0	$ 0
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	171,667,000		138,479,000	$ 171,667,000	$ 138,479,000
General reserves to total loans collectively evaluated for impairment				0.49%	0.27%
Gross loans, excluding loan receivable held for sale	171,667,000		138,479,000	$ 171,667,000	$ 138,479,000
Total allowance to gross loans				0.49%	0.27%
Real estate loans | Land
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	658,000	772,000	972,000	$ 772,000	$ 993,000	993,000
Charge-offs	0		0	0	0
Recoveries	0		0	0	0
Provisions for (reduction in) loan losses	(25,000)		(104,000)	(139,000)	(125,000)
Balance, at the end of the period	633,000		868,000	633,000	868,000	772,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0
Amount of allowance attributed to: General portfolio allocation	633,000		868,000	633,000	868,000
Loans individually evaluated for impairment	0		4,000	$ 0	$ 4,000
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	30,717,000		49,988,000	$ 30,717,000	$ 49,988,000
General reserves to total loans collectively evaluated for impairment				2.06%	1.74%
Gross loans, excluding loan receivable held for sale	30,717,000		49,992,000	$ 30,717,000	$ 49,992,000
Total allowance to gross loans				2.06%	1.74%
Consumer loans | Consumer loans
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	221,000	$ 219,000	99,000	$ 219,000	$ 95,000	95,000
Charge-offs	(11,000)		(85,000)	(16,000)	(137,000)
Recoveries	9,000		6,000	10,000	7,000
Provisions for (reduction in) loan losses	132,000		77,000	138,000	132,000
Balance, at the end of the period	351,000		97,000	351,000	97,000	$ 219,000
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0		0	0	0
Amount of allowance attributed to: General portfolio allocation	351,000		97,000	351,000	97,000
Loans individually evaluated for impairment	0		13,000	$ 0	$ 13,000
Specific reserves to total loans individually evaluated for impairment				0.00%	0.00%
Loans collectively evaluated for impairment	40,548,000		114,723,000	$ 40,548,000	$ 114,723,000
General reserves to total loans collectively evaluated for impairment				0.87%	0.08%
Gross loans, excluding loan receivable held for sale	$ 40,548,000		$ 114,736,000	$ 40,548,000	$ 114,736,000
Total allowance to gross loans				0.87%	0.08%
Owner Occupied Commercial Real Estate Loans Commercial And Industrial Loans And Small Business Administration Loans
Allowance for Loan Losses
Period considered for comparison of allowance for loan losses factor						1 year
Period considered for comparison of entity's allowance for loan losses factor		1 year 7 months 6 days

Subordinated Debentures (Detail

Subordinated Debentures (Details)	Oct. 07, 2019USD ($)	Sep. 16, 2019	Jul. 08, 2019	Jul. 01, 2018USD ($)	Nov. 01, 2017USD ($)note	Sep. 30, 2019USD ($)	May 31, 2019USD ($)	Mar. 31, 2004USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)	Apr. 01, 2017USD ($)	Aug. 31, 2014USD ($)
Subordinated Debentures
Subordinated debentures						$ 217,825,000			$ 217,825,000	$ 217,825,000		$ 110,313,000
Aggregate amount called on subordinated debentures										15,465,000	$ 0
Reduction of Tier 1 capital associated with redemption of capital instruments									14,700,000
PPBI Trust I
Subordinated Debentures
Floating rate trust preferred securities issue amount								$ 10,000,000
Notes
Subordinated Debentures
Debt issued														$ 60,000,000
Fixed interest rate (as a percent)														5.75%
Subordinated debentures						59,400,000			59,400,000	59,400,000
Unamortized debt issuance cost						598,000			598,000	598,000
Subordinated Debentures | Mission Community Capital Trust I
Subordinated Debentures
Subordinated debentures						$ 2,800,000			$ 2,800,000	$ 2,800,000
Floating rate junior subordinated debt													$ 3,100,000
Effective rate (as a percent)						5.25%			5.25%	5.25%
Purchase accounting fair value adjustments										$ 290,000
Subordinated Debentures | Mission Community Capital Trust I | Subsequent Event
Subordinated Debentures
Floating rate junior subordinated debt	$ 3,100,000
Effective rate (as a percent)	5.25%
Aggregate amount called on subordinated debentures	$ 3,100,000
Loss on early debt extinguishment	$ 290,000
Subordinated Debentures | Santa Lucia Bancorp (CA) Capital Trust
Subordinated Debentures
Subordinated debentures						$ 3,900,000			$ 3,900,000	$ 3,900,000
Floating rate junior subordinated debt													5,200,000
Effective rate (as a percent)						3.78%			3.78%	3.78%
Purchase accounting fair value adjustments										$ 1,300,000
Subordinated Debentures | Heritage Oaks Bancorp
Subordinated Debentures
Floating rate junior subordinated debt						$ 4,000,000			$ 4,000,000	$ 4,000,000			$ 5,200,000
Effective rate (as a percent)						4.04%			4.04%	4.04%
Purchase accounting fair value adjustments										$ 1,200,000
Subordinated Debentures | Plaza Bancorp
Subordinated Debentures
Floating rate junior subordinated debt						$ 25,100,000			$ 25,100,000	25,100,000
Purchase accounting fair value adjustments										139,000
Subordinated Debentures | Grandpoint Capital, Inc.
Subordinated Debentures
Effective rate (as a percent)		5.36%
Aggregate amount called on subordinated debentures				$ 5,200,000
Loss on early debt extinguishment						214,000
Debt assumed in acquisition				$ 5,200,000
Subordinated Debentures | PPBI Trust I
Subordinated Debentures
Debt issued								$ 10,300,000
Minority interest purchased (as a percent)								3.00%
Amount of minority interest purchased								$ 310,000
Effective rate (as a percent)			5.35%
Aggregate amount called on subordinated debentures										$ 10,400,000
Subordinated Debentures | LIBOR | Mission Community Capital Trust I
Subordinated Debentures
Floating interest rate, basis points added to base rate (as a percent)										2.95%
Subordinated Debentures | LIBOR | Mission Community Capital Trust I | Subsequent Event
Subordinated Debentures
Floating interest rate, basis points added to base rate (as a percent)	2.95%
Subordinated Debentures | LIBOR | Santa Lucia Bancorp (CA) Capital Trust
Subordinated Debentures
Floating interest rate, basis points added to base rate (as a percent)										1.48%
Subordinated Debentures | LIBOR | Heritage Oaks Bancorp
Subordinated Debentures
Floating interest rate, basis points added to base rate (as a percent)										1.72%
Subordinated Debentures | LIBOR | Grandpoint Capital, Inc.
Subordinated Debentures
Floating interest rate, basis points added to base rate (as a percent)		2.95%
Subordinated Debentures | LIBOR | PPBI Trust I
Subordinated Debentures
Floating interest rate, basis points added to base rate (as a percent)			2.75%
Subordinated Debentures | Notes II
Subordinated Debentures
Debt issued							$ 125,000,000
Fixed interest rate (as a percent)							4.875%
Unamortized debt issuance cost						2,400,000			2,400,000	$ 2,400,000
Public offering price (as a percent)							100.00%
Floating rate junior subordinated debt						$ 122,600,000			$ 122,600,000	$ 122,600,000
Subordinated Debentures | Notes II | LIBOR
Subordinated Debentures
Floating interest rate, basis points added to base rate (as a percent)							2.50%
Subordinated Notes 7.125% | Plaza Bancorp
Subordinated Debentures
Fixed interest rate (as a percent)					7.125%
Number of subordinated notes assumed | note					3
Debt assumed in acquisition					$ 25,000,000
Redemption price (as a percent)					103.00%
Redemption price, subsequent reduction (as a percent)					0.50%

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Basic
Net income	$ 41,375	$ 38,527	$ 28,392	$ 118,620	$ 83,697
Less: Earnings allocated to participating securities	(432)	(444)	0	(1,223)	0
Net income allocated to common stockholders	$ 40,943	$ 38,083	$ 28,392	$ 117,397	$ 83,697
Weighted average common shares outstanding (in shares)	59,293,218	61,308,046	61,727,030	60,853,081	51,282,533
Basic earnings per common share (in dollars per share)	$ 0.69	$ 0.62	$ 0.46	$ 1.93	$ 1.63
Diluted
Net income allocated to common stockholders	$ 40,943	$ 38,083	$ 28,392	$ 117,397	$ 83,697
Weighted average common shares outstanding (in shares)	59,293,218	61,308,046	61,727,030	60,853,081	51,282,533
Diluted effect of share-based compensation (in shares)	377,637	353,727	634,774	348,777	683,114
Weighted average diluted common shares (in shares)	59,670,855	61,661,773	62,361,804	61,201,858	51,965,647
Diluted earnings per common share (in dollars per share)	$ 0.69	$ 0.62	$ 0.46	$ 1.92	$ 1.61
Anti-Dilutive RSUs
Diluted
Weighted-average shares of anti-dilutive RSUs excluded from diluted EPS computation	0			0

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Hierarchy Table - Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financial assets
Investment securities available-for-sale, at fair value	$ 1,256,655	$ 1,103,222
U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	64,190	60,912
Agency
Financial assets
Investment securities available-for-sale, at fair value	261,558	130,070
Corporate
Financial assets
Investment securities available-for-sale, at fair value	127,802	103,543
Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	294,099	238,630
Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	10,642	24,338
Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	498,364	545,729
Level 1
Financial assets
Investment securities available-for-sale, at fair value	0	0
Derivative assets	0	0
Financial liabilities
Derivative liabilities	0	0
Level 2
Financial assets
Investment securities available-for-sale, at fair value	1,256,655	1,103,222
Derivative assets	2,853	1,681
Financial liabilities
Derivative liabilities	2,853	1,681
Level 3
Financial assets
Investment securities available-for-sale, at fair value	0	0
Derivative assets	0	0
Financial liabilities
Derivative liabilities	0	0
Recurring
Financial assets
Investment securities available-for-sale, at fair value	1,256,655	1,103,222
Derivative assets	2,853	1,681
Financial liabilities
Derivative liabilities	2,853	1,681
Recurring | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	64,190	60,912
Recurring | Agency
Financial assets
Investment securities available-for-sale, at fair value	261,558	130,070
Recurring | Corporate
Financial assets
Investment securities available-for-sale, at fair value	127,802	103,543
Recurring | Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	294,099	238,630
Recurring | Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	10,642	24,338
Recurring | Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	498,364	545,729
Recurring | Level 1
Financial assets
Investment securities available-for-sale, at fair value	0	0
Derivative assets	0	0
Financial liabilities
Derivative liabilities	0	0
Recurring | Level 1 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 2
Financial assets
Investment securities available-for-sale, at fair value	1,256,655	1,103,222
Derivative assets	2,853	1,681
Financial liabilities
Derivative liabilities	2,853	1,681
Recurring | Level 2 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	64,190	60,912
Recurring | Level 2 | Agency
Financial assets
Investment securities available-for-sale, at fair value	261,558	130,070
Recurring | Level 2 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	127,802	103,543
Recurring | Level 2 | Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	294,099	238,630
Recurring | Level 2 | Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	10,642	24,338
Recurring | Level 2 | Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	498,364	545,729
Recurring | Level 3
Financial assets
Investment securities available-for-sale, at fair value	0	0
Derivative assets	0	0
Financial liabilities
Derivative liabilities	0	0
Recurring | Level 3 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	$ 0	$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Narrative (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Specific reserve recorded on loan	$ 0	$ 584,000	$ 250,000

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Hierarchy Table - Noncrecurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value Disclosures
Financial assets, impaired loans	$ 16	$ 1,445
Level 1
Fair Value Disclosures
Financial assets, impaired loans	0	0
Level 2
Fair Value Disclosures
Financial assets, impaired loans	0	0
Level 3
Fair Value Disclosures
Financial assets, impaired loans	$ 16	$ 1,445

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Fair Value Estimates (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets:
Investments held-to-maturity	$ 41,302	$ 44,672
Investment securities available-for-sale	1,256,655	1,103,222
Accrued interest receivable	38,603	37,837
Level 1
Assets:
Cash and cash equivalents	427,715	203,406
Investments held-to-maturity	0	0
Investment securities available-for-sale	0	0
Loans held for sale	0	0
Loans held for investment, net	0	0
Derivative asset	0	0
Accrued interest receivable	38,603	37,837
Liabilities:
Deposit accounts	7,515,400	7,247,673
FHLB advances	0	0
Other borrowings		0
Subordinated debentures	0	0
Derivative liability	0	0
Accrued interest payable	6,537	3,255
Level 1 | Interest-bearing time deposits with financial institutions
Assets:
Cash and cash equivalents	2,711	6,143
Level 2
Assets:
Cash and cash equivalents	0	0
Investments held-to-maturity	41,302	44,672
Investment securities available-for-sale	1,256,655	1,103,222
Loans held for sale	7,637	6,072
Loans held for investment, net	0	0
Derivative asset	2,853	1,681
Accrued interest receivable	0	0
Liabilities:
Deposit accounts	1,345,436	1,403,524
FHLB advances	604,980	666,864
Other borrowings		75
Subordinated debentures	237,624	115,613
Derivative liability	2,853	1,681
Accrued interest payable	0	0
Level 2 | Interest-bearing time deposits with financial institutions
Assets:
Cash and cash equivalents	0	0
Level 3
Assets:
Cash and cash equivalents	0	0
Investments held-to-maturity	0	0
Investment securities available-for-sale	0	0
Loans held for sale	0	0
Loans held for investment, net	8,758,265	8,697,594
Derivative asset	0	0
Accrued interest receivable	0	0
Liabilities:
Deposit accounts	0	0
FHLB advances	0	0
Other borrowings		0
Subordinated debentures	0	0
Derivative liability	0	0
Accrued interest payable	0	0
Level 3 | Interest-bearing time deposits with financial institutions
Assets:
Cash and cash equivalents	0	0
Carrying Amount
Assets:
Cash and cash equivalents	427,715	203,406
Investments held-to-maturity	40,433	45,210
Investment securities available-for-sale	1,256,655	1,103,222
Loans held for sale	7,092	5,719
Loans held for investment, net	8,757,476	8,836,818
Derivative asset	2,853	1,929
Accrued interest receivable	38,603	37,837
Liabilities:
Deposit accounts	8,859,288	8,658,351
FHLB advances	604,558	667,606
Other borrowings		75
Subordinated debentures	217,825	110,313
Derivative liability	2,853	1,929
Accrued interest payable	6,537	3,255
Carrying Amount | Interest-bearing time deposits with financial institutions
Assets:
Cash and cash equivalents	2,711	6,143
Estimated Fair Value
Assets:
Cash and cash equivalents	427,715	203,406
Investments held-to-maturity	41,302	44,672
Investment securities available-for-sale	1,256,655	1,103,222
Loans held for sale	7,637	6,072
Loans held for investment, net	8,758,265	8,697,594
Derivative asset	2,853	1,681
Accrued interest receivable	38,603	37,837
Liabilities:
Deposit accounts	8,860,836	8,651,197
FHLB advances	604,980	666,864
Other borrowings		75
Subordinated debentures	237,624	115,613
Derivative liability	2,853	1,681
Accrued interest payable	6,537	3,255
Estimated Fair Value | Interest-bearing time deposits with financial institutions
Assets:
Cash and cash equivalents	$ 2,711	$ 6,143

Derivative Instruments (Details

Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative assets, Fair value	$ 2,853	$ 1,681
Derivative liabilities, Fair value	2,853	1,681
Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative assets, Notional	48,932	57,502
Derivative assets, Fair value	2,853	1,681
Derivative liabilities, Notional	48,932	57,502
Derivative liabilities, Fair value	2,853	1,681
Not Designated as Hedging Instruments | Interest rate swap contracts
Derivative [Line Items]
Derivative assets, Notional	48,932	57,502
Derivative assets, Fair value	2,853	1,681
Derivative liabilities, Notional	48,932	57,502
Derivative liabilities, Fair value	$ 2,853	$ 1,681

Balance Sheet Offsetting (Detai

Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financial assets:
Gross Amounts Recognized	$ 2,853	$ 2,177
Gross Amounts Offset in the Consolidated Balance Sheets	0	(496)
Net Amounts Presented in the Consolidated Balance Sheets	2,853	1,681
Financial Instruments	0	0
Cash Collateral	0	0
Net Amount	2,853	1,681
Financial liabilities:
Gross Amounts Recognized	2,853	1,681
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Net Amounts Presented in the Consolidated Balance Sheets	2,853	1,681
Financial Instruments	0	0
Cash Collateral	(2,750)	0
Net Amount	103	1,681
Derivatives not designated as hedging instruments
Financial assets:
Gross Amounts Recognized	2,853	2,177
Gross Amounts Offset in the Consolidated Balance Sheets	0	(496)
Net Amounts Presented in the Consolidated Balance Sheets	2,853	1,681
Financial Instruments	0	0
Cash Collateral	0	0
Net Amount	2,853	1,681
Financial liabilities:
Gross Amounts Recognized	2,853	1,681
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Net Amounts Presented in the Consolidated Balance Sheets	2,853	1,681
Financial Instruments	0	0
Cash Collateral	(2,750)	0
Net Amount	$ 103	$ 1,681

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Leases [Abstract]
Expense associated with leases	$ 3,500		$ 10,300
Operating lease expense	2,900		8,400
Short-term lease expense	575		1,900
Rental income	$ 25	$ 140	$ 116	$ 389

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Information (Details)	9 Months Ended
	Sep. 30, 2019USD ($)
Leases [Abstract]
Operating lease right of use assets	$ 42,065,000
Operating lease liabilities	44,973,000
Operating cash flows from operating leases	$ 8,786

Leases - Schedule of Minimum Co

Leases - Schedule of Minimum Contractual Lease Payments and Other Information (Details) $ in Thousands	Sep. 30, 2019USD ($)
Operating leases
2019	$ 2,798
2020	9,354
2021	9,773
2022	9,327
2023	8,346
Thereafter	13,619
Total	53,217
Short-term leases
2019	218
2020	79
2021	0
2022	0
2023	0
Thereafter	0
Total	297
Total contractual base rents
2019	3,016
2020	9,433
2021	9,773
2022	9,327
2023	8,346
Thereafter	13,619
Total	53,514
Total liability to make lease payments	44,973
Difference in undiscounted and discounted future lease payments	$ 8,541
Weighted average discount rate	6.26%
Weighted average remaining lease term (years)	5 years 6 months

Leases - Schedule of Informatio

Leases - Schedule of Information Related to Minimum Contractual Lease Payments (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 11,468
2020	10,869
2021	10,133
2022	9,296
2023	8,124
Thereafter	10,518
Total	$ 60,408

Revenue Recognition - Summary o

Revenue Recognition - Summary of Company's Revenue Streams (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest income:
Loans	$ 122,974	$ 121,860	$ 119,271	$ 366,310	$ 289,069
Investment securities and other interest-earning assets	9,630	10,554	9,605	29,951	23,333
Total interest income	132,604	132,414	128,876	396,261	312,402
Noninterest income:
Loan servicing fees	546	409	400	1,353	1,037
Earnings on bank-owned life insurance	861	851	1,270	2,622	2,498
Net gain from sales of loans	2,313	902	2,029	4,944	8,830
Net gain from sales of investment securities	4,261	212	1,063	4,900	1,399
Other income	1,228	1,001	530	3,689	2,697
Total noninterest income	11,430	6,324	8,240	25,435	24,057
Service charges on deposit accounts
Noninterest income:
Noninterest income	1,440	1,441	1,570	4,211	3,777
Other service fee income
Noninterest income:
Noninterest income	360	363	317	1,079	632
Debit card interchange income
Noninterest income:
Noninterest income	421	1,145	1,061	2,637	3,187
Within Scope
Noninterest income:
Other income	592	544	(446)	1,328	84
Total noninterest income	2,813	3,493	2,502	9,255	7,680
Total revenues	2,813	3,493	2,502	9,255	7,680
Within Scope | Service charges on deposit accounts
Noninterest income:
Noninterest income	1,440	1,441	1,570	4,211	3,777
Within Scope | Other service fee income
Noninterest income:
Noninterest income	360	363	317	1,079	632
Within Scope | Debit card interchange income
Noninterest income:
Noninterest income	421	1,145	1,061	2,637	3,187
Out of Scope
Interest income:
Loans	122,974	121,860	119,271	366,310	289,069
Investment securities and other interest-earning assets	9,630	10,554	9,605	29,951	23,333
Total interest income	132,604	132,414	128,876	396,261	312,402
Noninterest income:
Loan servicing fees	546	409	400	1,353	1,037
Earnings on bank-owned life insurance	861	851	1,270	2,622	2,498
Net gain from sales of loans	2,313	902	2,029	4,944	8,830
Net gain from sales of investment securities	4,261	212	1,063	4,900	1,399
Other income	636	457	976	2,361	2,613
Total noninterest income	8,617	2,831	5,738	16,180	16,377
Total revenues	$ 141,221	$ 135,245	$ 134,614	$ 412,441	$ 328,779

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 18, 2019	Oct. 07, 2019	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Apr. 01, 2017
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share)			$ 0.22	$ 0.66
Aggregate amount called on subordinated debentures				$ 15,465	$ 0
Subordinated Debentures | Mission Community Capital Trust I
Subsequent Event [Line Items]
Floating rate junior subordinated debt						$ 3,100
Effective rate (as a percent)			5.25%	5.25%
Subordinated Debentures | Mission Community Capital Trust I | LIBOR
Subsequent Event [Line Items]
Floating interest rate, basis points added to base rate (as a percent)				2.95%
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share)	$ 0.22
Subsequent Event | Subordinated Debentures | Mission Community Capital Trust I
Subsequent Event [Line Items]
Floating rate junior subordinated debt		$ 3,100
Effective rate (as a percent)		5.25%
Aggregate amount called on subordinated debentures		$ 3,100
Loss on early debt extinguishment		$ 290
Subsequent Event | Subordinated Debentures | Mission Community Capital Trust I | LIBOR
Subsequent Event [Line Items]
Floating interest rate, basis points added to base rate (as a percent)		2.95%