Pacific Premier Bancorp (PPBI) 10-Q 8 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 03, 2019
Document and Entity Information
Entity Registrant Name	PACIFIC PREMIER BANCORP INC
Entity Central Index Key	0001028918
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Amendment Flag	false
Entity Emerging Growth Company	false
Entity Small Business	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		62,689,976
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
ASSETS
Cash and due from banks	$ 122,947	$ 125,036
Interest-bearing deposits with financial institutions	55,435	78,370
Cash and cash equivalents	178,382	203,406
Interest-bearing time deposits with financial institutions	5,896	6,143
Investments held-to-maturity, at amortized cost (fair value of $43,980 and $44,672 as of March 31, 2019 and December 31, 2018, respectively)	43,894	45,210
Investment securities available-for-sale, at fair value	1,171,410	1,103,222
FHLB, FRB and other stock, at cost	94,751	94,918
Loans held for sale, at lower of cost or fair value	11,671	5,719
Loans held for investment	8,865,855	8,836,818
Allowance for loan losses	(37,856)	(36,072)
Loans held for investment, net	8,827,999	8,800,746
Accrued interest receivable	40,302	37,837
Other real estate owned	180	147
Premises and equipment	61,523	64,691
Deferred income taxes, net	9,275	15,627
Bank owned life insurance	111,400	110,871
Intangible assets	96,120	100,556
Goodwill	808,726	808,726
Other assets	118,966	89,568
Total assets	11,580,495	11,487,387
Deposit accounts:
Noninterest-bearing checking	3,423,893	3,495,737
Interest-bearing:
Checking	560,274	526,088
Money market/savings	3,138,875	3,225,849
Retail certificates of deposit	1,007,559	1,009,066
Wholesale/brokered certificates of deposit	584,574	401,611
Total interest-bearing	5,291,282	5,162,614
Total deposits	8,715,175	8,658,351
FHLB advances and other borrowings	609,591	667,681
Subordinated debentures	110,381	110,313
Accrued expenses and other liabilities	138,284	81,345
Total liabilities	9,573,431	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 March 31, 2019 and December 31, 2018; 62,773,299 shares 62,480,755 shares issued and outstanding, respectively.	617	617
Additional paid-in capital	1,676,024	1,674,274
Retained earnings	325,363	300,407
Accumulated other comprehensive income (loss)	5,060	(5,601)
Total stockholders’ equity	2,007,064	1,969,697
Total liabilities and stockholders’ equity	$ 11,580,495	$ 11,487,387

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Investments held-to-maturity, fair value	$ 43,980	$ 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)	62,773,299	62,480,755
Common stock, shares outstanding (in shares)	62,773,299	62,480,755

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
INTEREST INCOME
Loans	$ 121,476	$ 126,341	$ 84,173
Investment securities and other interest-earning assets	9,767	9,680	6,654
Total interest income	131,243	136,021	90,827
INTEREST EXPENSE
Deposits	13,284	12,041	5,914
FHLB advances and other borrowings	4,802	4,701	2,023
Subordinated debentures	1,751	1,733	1,609
Total interest expense	19,837	18,475	9,546
Net interest income before provision for credit losses	111,406	117,546	81,281
Provision for credit losses	1,526	2,258	2,253
Net interest income after provision for credit losses	109,880	115,288	79,028
NONINTEREST INCOME
Loan servicing fees	398	408	345
Earnings on bank-owned life insurance	910	929	611
Net gain from sales of loans	1,729	1,929	2,958
Net gain from sales of investment securities	427	0	6
Other income	1,460	944	1,414
Total noninterest income	7,681	6,970	7,666
NONINTEREST EXPENSE
Compensation and benefits	33,388	33,838	28,873
Premises and occupancy	7,535	7,504	4,781
Data processing	2,930	3,868	2,702
Other real estate owned operations, net	3	1	1
FDIC insurance premiums	800	750	611
Legal, audit and professional expense	2,998	3,105	1,839
Marketing expense	1,497	1,700	1,530
Office, telecommunications and postage expense	1,210	1,579	1,080
Loan expense	873	1,046	591
Deposit expense	3,583	3,105	1,676
Merger-related expense	655	2,597	936
CDI amortization	4,436	4,631	2,274
Other expense	3,669	3,515	2,914
Total noninterest expense	63,577	67,239	49,808
Net income before income taxes	53,984	55,019	36,886
Income tax	15,266	15,376	8,884
Net income	$ 38,718	$ 39,643	$ 28,002
EARNINGS PER SHARE
Basic (in dollars per share)	$ 0.62	$ 0.64	$ 0.61
Diluted (in dollars per share)	$ 0.62	$ 0.63	$ 0.60
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	61,987,605	61,917,184	45,893,496
Diluted (in shares)	62,285,783	62,457,100	46,652,059
Service charges on deposit accounts
NONINTEREST INCOME
Noninterest income	$ 1,330	$ 1,351	$ 1,150
Other service fee income
NONINTEREST INCOME
Noninterest income	356	270	146
Debit card interchange fee income
NONINTEREST INCOME
Noninterest income	$ 1,071	$ 1,139	$ 1,036

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income		$ 38,718	$ 39,643	$ 28,002
Other comprehensive income, net of tax:
Unrealized holding (loss)/gain on securities arising during the period, net of income taxes	[1]	10,967	11,076	(9,343)
Reclassification adjustment for net (gains) losses on sale of securities included in net income, net of income taxes	[2]	(306)	0	(5)
Other comprehensive income (loss), net of tax		10,661	11,076	(9,348)
Comprehensive income, net of tax		$ 49,379	$ 50,719	$ 18,654
[1]	Income tax expense (benefit) on the unrealized gain (loss) on securities was $4.5 million for the three months ended March 31, 2019 , $4.6 million for the three months ended December 31, 2018 , and $(3.9) million for the three months ended March 31, 2018
[2]	Income tax expense on the reclassification adjustment for net gains losses on sale of securities included in net income was $121,000 for the three months ended March 31, 2019 , $0 for the three months ended December 31, 2018 , and $1,000 for the three months ended March 31, 2018 .

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Unrealized holding (loss)/gain on securities arising during the period, income tax expense (benefit)	$ 4,500	$ 4,600	$ (3,900)
Reclassification adjustment for net (gains) losses on sale of securities included in net income, income tax expense (benefit)	$ 121	$ 0	$ 1

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 (Loss) Income
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	28,002			28,002
Other comprehensive income	(9,348)				(9,348)
Share-based compensation expense	1,712		1,712
Issuance of restricted stock, net (in shares)		197,422
Restricted stock surrendered and canceled	(1,538)		(1,538)
Restricted stock surrendered and canceled (in shares)		(26,168)
Exercise of stock options	1,084	$ 14	1,070
Exercise of stock options (in shares)		111,262
Reclassification of certain tax effects of the Tax Cuts and Jobs Act	0			(82)	82
Balance at Mar. 31, 2018	1,261,908	$ 472	1,065,218	205,069	(8,851)
Balance (in shares) at Mar. 31, 2018		46,527,566
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	$ 38,718			38,718
Other comprehensive income	10,661				10,661
Cash dividends declared ($0.22 per common share)	(13,749)			(13,749)
Dividend equivalents declared ($0.22 per restricted stock units)	0		13	(13)
Share-based compensation expense	2,453		2,453
Issuance of restricted stock, net	0
Issuance of restricted stock, net (in shares)		289,754
Restricted stock surrendered and canceled	(1,047)		(1,047)
Restricted stock surrendered and canceled (in shares)		(37,279)
Exercise of stock options	331		331
Exercise of stock options (in shares)		40,069
Balance at Mar. 31, 2019	$ 2,007,064	$ 617	$ 1,676,024	$ 325,363	$ 5,060
Balance (in shares) at Mar. 31, 2019	62,773,299	62,773,299

CONSOLIDATED STATEMENTS OF ST_2

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical)	3 Months Ended
	Mar. 31, 2019$ / shares
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.22
Dividend equivalents declared (in dollars per share)	$ 0.22

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 38,718	$ 39,643	$ 28,002
Adjustments to net income:
Depreciation and amortization expense	2,259		1,657
Provision for credit losses	1,526	2,258	2,253
Share-based compensation expense	2,453		1,712
Loss on sale and disposal of premises and equipment	64		0
Loss on sale of or write down of other real estate owned	0		12
Net amortization on securities	1,453		1,645
Net accretion of deferred loan fees/costs and discounts/premiums for loans acquired	5,723		(1,566)
Gain on sale of investment securities available-for-sale	(427)	0	(6)
Originations of loans held for sale	(31,762)		(29,229)
Proceeds from the sales of and principal payments from loans held for sale	27,623		38,814
Gain on sale of loans	(1,729)		(2,958)
Deferred income tax expense	1,995		2,750
Change in accrued expenses and other liabilities, net	(11,956)		(11,305)
Income from bank owned life insurance, net	(713)		(478)
Amortization of core deposit intangible	4,436		2,274
Change in accrued interest receivable and other assets, net	12,621		1,293
Net cash provided by operating activities	52,284		34,870
Cash flows from investing activities:
Net decrease in interest-bearing time deposits with financial institutions	247		0
Proceeds from sale of other real estate owned	0		108
Increase in loans, net	(35,106)		(44,531)
Purchase of held-to-maturity securities	0		(6,367)
Principal payments on held-to-maturity securities	1,310		78
Purchase of securities available-for-sale	(226,836)		(117,407)
Principal payments on securities available-for-sale	(28,404)		(26,768)
Proceeds from sale or maturity of securities available-for-sale	168,837		0
Proceeds from the sale of premises and equipment	2,650		0
Proceeds from bank owned life insurance death benefit	220		0
Purchases of premises and equipment	(1,805)		(1,647)
Change in FHLB, FRB, and other stock, at cost	488		(16,234)
Net cash used in investing activities	(61,591)		(159,232)
Cash flows from financing activities:
Net increase in deposit accounts	56,823		106,405
Net change in short-term borrowings	(53,075)		(42,279)
Repayment of long-term FHLB borrowings	(5,000)		(10,418)
Cash dividends paid	(13,749)		0
Proceeds from exercise of stock options and warrants	331		1,084
Restricted stock surrendered and canceled	(1,047)		(1,538)
Net cash (used in) provided by financing activities	(15,717)		53,254
Net decrease in cash and cash equivalents	(25,024)		(71,108)
Cash and cash equivalents, beginning of period	203,406		197,164
Cash and cash equivalents, end of period	178,382	$ 203,406	126,056
Supplemental cash flow disclosures:
Interest paid	18,519		9,974
Income taxes paid	53		95
Noncash investing activities during the period:
Transfers from loans to other real estate owned	34		0
Receivable on unsettled security sales	1,061		0
Due on unsettled security purchases	(25,657)		0
Initial recognition of operating lease right-of-use assets	(45,675)		0
Initial recognition of operating lease liabilities	$ 45,675		$ 0

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 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 consolidated financial statements contain all adjustments (consisting of normal recurring accruals) necessary to present fairly the Company’s financial position as of March 31, 2019 and December 31, 2018 , the results of its operations and comprehensive income for the three months ended March 31, 2019 , December 31, 2018 and March 31, 2018 , and the changes in stockholders’ equity and cash flows for the three months ended March 31, 2019 and 2018 . Operating results or comprehensive income for the three months ended March 31, 2019 are not necessarily indicative of the results or comprehensive income that may be expected for any other interim period or the full year ending December 31, 2019 . 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”).

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	3 Months Ended
	Mar. 31, 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 Purchase 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) , ASU 2018-11, Leases (Topic 842): Targeted Improvements , ASU 2018-10, Codification Improvements to Topic 842, Leases . This Update is being issued to increase the transparency and comparability around lease obligations. Previously unrecorded off-balance sheet obligations and corresponding rights to use underlying leased assets will now be 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 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 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 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

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 31, 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 Company by the end of the lease term, (b) the lease contains an option to purchase the underlying asset that the Company 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 March 31, 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	3 Months Ended
	Mar. 31, 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 $313.0 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 (9,802 ) 4,383 Other assets 97,441 (195 ) 97,246 Total assets acquired $ 3,051,567 $ 24,253 $ 3,075,820 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 $ 23,047 289,109 Consideration paid 602,152 Goodwill recognized $ 313,043 Such fair values are preliminary 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. Fair value adjustments will be finalized no later than July 2019. 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. The loan portfolios of Grandpoint was recorded at fair value at the date of each acquisition. A valuation of Grandpoint’s loan portfolio was performed by a third party as of the acquisition dates to assess the fair value of the loan portfolio. The loan portfolio was both 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 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 was 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 three months ended March 31, 2019 and December 31, 2018 include the operating results of Grandpoint since its acquisition date. The following table presents 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 three months ended March 31, 2019 , December 31, 2018 and March 31, 2018 . There were no material, nonrecurring adjustments to the pro forma net interest and other income, net income and earnings per share presented below: Three Months Ended March 31, December 31, March 31, 2019 2018 2018 (dollars in thousands) Net interest and other income $ 117,561 $ 122,258 $ 116,618 Net income 38,718 39,643 36,695 Basic earnings per share 0.62 0.64 0.60 Diluted earnings per share 0.62 0.63 0.59

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost and estimated fair value of securities were as follows: March 31, 2019 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value (dollars in thousands) Investment securities available-for-sale: U.S. Treasury $ 59,716 $ 2,185 $ — $ 61,901 Agency 161,945 3,987 (444 ) 165,488 Corporate 138,128 538 (811 ) 137,855 Municipal bonds 213,561 4,122 (667 ) 217,016 Collateralized mortgage obligation: residential 23,642 70 (261 ) 23,451 Mortgage-backed securities: residential 567,348 3,669 (5,318 ) 565,699 Total investment securities available-for-sale 1,164,340 14,571 (7,501 ) 1,171,410 Investment securities held-to-maturity: Mortgage-backed securities: residential 42,083 466 (380 ) 42,169 Other 1,811 — — 1,811 Total investment securities held-to-maturity 43,894 466 (380 ) 43,980 Total investment securities $ 1,208,234 $ 15,037 $ (7,881 ) $ 1,215,390 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 March 31, 2019 , the Company had an accumulated other comprehensive income of $7.1 million , or $5.1 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 . During the first quarter of March 31, 2019 , the Bank no longer has 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 March 31, 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 were no OTTI for the three months ended March 31, 2019 , December 31, 2018 or March 31, 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. March 31, 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 6 $ 27,200 $ (189 ) 8 $ 14,583 $ (255 ) 14 $ 41,783 $ (444 ) Corporate 9 51,516 (363 ) 10 28,837 (448 ) 19 80,353 (811 ) Municipal bonds 4 12,087 (18 ) 58 39,763 (649 ) 62 51,850 (667 ) Collateralized mortgage obligation: residential 1 758 (1 ) 8 17,433 (260 ) 9 18,191 (261 ) Mortgage-backed securities: residential 2 21,784 (415 ) 106 291,110 (4,903 ) 108 312,894 (5,318 ) Total investment securities available-for-sale 22 113,345 (986 ) 190 391,726 (6,515 ) 212 505,071 (7,501 ) Investment securities held-to-maturity: Mortgage-backed securities: residential — — — 4 17,131 (380 ) 4 17,131 (380 ) Total investment securities held-to-maturity — — — 4 17,131 (380 ) 4 17,131 (380 ) Total investment securities 22 $ 113,345 $ (986 ) 194 $ 408,857 $ (6,895 ) 216 $ 522,202 $ (7,881 ) 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 March 31, 2019 , by contractual maturity are shown in the table below. One Year or Less More than One Year to Five Years More than Five Years to Ten Years More than 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 $ 495 $ 495 $ 9,917 $ 10,214 $ 49,304 $ 51,192 $ — $ — $ 59,716 $ 61,901 Agency — — 32,098 33,108 84,589 87,279 45,258 45,101 161,945 165,488 Corporate — — — — 138,128 137,855 — — 138,128 137,855 Municipal bonds 250 250 2,186 2,202 40,705 40,946 170,420 173,618 213,561 217,016 Collateralized mortgage obligation: residential — — — — 2,957 2,916 20,685 20,535 23,642 23,451 Mortgage-backed securities: residential — — 479 471 136,950 137,977 429,919 427,251 567,348 565,699 Total investment securities available-for-sale 745 745 44,680 45,995 452,633 458,165 666,282 666,505 1,164,340 1,171,410 Investment securities held-to-maturity: Mortgage-backed securities: residential — — 923 947 — — 41,160 41,222 42,083 42,169 Other — — — — — — 1,811 1,811 1,811 1,811 Total investment securities held-to-maturity — — 923 947 — — 42,971 43,033 43,894 43,980 Total investment securities $ 745 $ 745 $ 45,603 $ 46,942 $ 452,633 $ 458,165 $ 709,253 $ 709,538 $ 1,208,234 $ 1,215,390 During the three months ended March 31, 2019 and March 31, 2018 , the Company recognized gross gains on sales of available-for-sale securities in the amount of $1.0 million and $6,000 , respectively. During the three months ended December 31, 2018 , the Company did no t recognize any gross gains on sales of available-for-sale securities. During the three months ended March 31, 2019 , the Company recognized gross losses on sales of available-for-sale securities in the amount of $615,000 . The Company did no t recognize any gross losses on the sales of available-for sale securities during the three months ended December 31, 2018 and March 31, 2018 . The Company had net proceeds from the sale of available-for-sale securities of $168.8 million during the three months ended March 31, 2019 . The Company had no net proceeds from the sale of available-for-sale securities during the three months ended December 31, 2018 and March 31, 2018 . FHLB, FRB and other stock At March 31, 2019 , the Company had $18.9 million in Federal Home Loan Bank of San Francisco (“FHLB”) stock, $51.6 million in Federal Reserve Bank of San Francisco (“FRB”) stock, and $24.3 million in other stock, all carried at cost. During the three months ended March 31, 2019 and December 31, 2018 , the FHLB repurchased $12.9 million and $9.9 million , respectively, of the Company’s excess FHLB stock through their stock repurchase program. During the three months ended March 31, 2018 , the FHLB did not repurchase any of the Company’s excess FHLB stock through their 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 March 31, 2019

Loans Held for Investment

Loans Held for Investment	3 Months Ended
	Mar. 31, 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: March 31, 2019 December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,336,520 $ 1,364,423 Franchise 813,057 765,416 Commercial owner occupied (1) 1,648,762 1,679,122 SBA 188,757 193,882 Agribusiness 134,603 138,519 Total business loans 4,121,699 4,141,362 Real estate loans Commercial non-owner occupied 2,124,250 2,003,174 Multi-family 1,511,942 1,535,289 One-to-four family (2) 279,467 356,264 Construction 538,197 523,643 Farmland 167,345 150,502 Land 46,848 46,628 Total real estate loans 4,668,049 4,615,500 Consumer loans Consumer loans 85,302 89,424 Gross loans held for investment (3) 8,875,050 8,846,286 Deferred loan origination (fees)/costs and (discounts)/premiums, net (9,195 ) (9,468 ) Loans held for investment 8,865,855 8,836,818 Allowance for loan losses (37,856 ) (36,072 ) Loans held for investment, net $ 8,827,999 $ 8,800,746 Loans held for sale, at lower of cost or fair value $ 11,671 $ 5,719 ______________________________ (1) Secured by real estate. (2) Includes second trust deeds. (3) Total gross loans held for investment for March 31, 2019 and December 31, 2018 are net of the unaccreted fair value net purchase discounts of $57.2 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 March 31, 2019 and December 31, 2018 , the servicing asset totaled $8.3 million and $8.5 million , respectively, and was included in other assets. 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 March 31, 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 $676.7 million at March 31, 2019 and $635.3 million at December 31, 2018 , including SBA participations serviced for others totaling $516.4 million at March 31, 2019 and $519.8 million at December 31, 2018 . Concentration of Credit Risk As of March 31, 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 and commercial owner occupied real estate and 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 $536.2 million for secured loans and $321.7 million for unsecured loans at March 31, 2019 . At March 31, 2019 , the Bank’s largest aggregate outstanding balance of loans to one borrower was $94.1 million of secured credit. Credit Quality and Credit Risk Management The Company’s credit quality and credit risk is 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 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. 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 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. 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 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 are reviewed annually 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. 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 March 31, 2019 (dollars in thousands) Business loans Commercial and industrial $ 1,323,301 $ 6,481 $ 6,738 $ — $ 1,336,520 Franchise 802,898 4,289 5,870 — 813,057 Commercial owner occupied 1,634,458 948 13,356 — 1,648,762 SBA 189,338 1,174 7,365 — 197,877 Agribusiness 120,753 — 13,850 — 134,603 Real estate loans Commercial non-owner occupied 2,125,422 — 1,379 — 2,126,801 Multi-family 1,507,242 4,039 661 — 1,511,942 One-to-four family 277,450 601 1,416 — 279,467 Construction 538,197 — — — 538,197 Farmland 167,228 — 117 — 167,345 Land 46,653 134 61 — 46,848 Consumer loans Consumer loans 85,175 — 127 — 85,302 Totals $ 8,818,115 $ 17,666 $ 50,940 $ — $ 8,886,721 Credit Risk Grades Pass Special Substandard Doubtful Total Gross December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,340,322 $ 12,005 $ 12,134 $ — $ 1,364,461 Franchise 760,795 4,431 190 — 765,416 Commercial owner occupied 1,660,994 1,580 16,548 — 1,679,122 SBA 189,006 2,289 6,906 — 198,201 Agribusiness 125,355 — 13,164 — 138,519 Real estate loans Commercial non-owner occupied 1,998,118 731 5,687 — 2,004,536 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 $ 8,764,593 $ 25,956 $ 61,456 $ — $ 8,852,005 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 March 31, 2019 (dollars in thousands) Business loans Commercial and industrial $ 1,333,664 $ 524 $ 1,439 $ 893 $ 1,336,520 $ 1,906 Franchise 807,187 — — 5,870 813,057 5,870 Commercial owner occupied 1,648,036 — — 726 1,648,762 564 SBA 192,818 965 103 3,991 197,877 4,104 Agribusiness 134,593 10 — — 134,603 — Real estate loans Commercial non-owner occupied 2,126,070 731 — — 2,126,801 — Multi-family 1,511,502 — 440 — 1,511,942 — One-to-four family 279,397 69 — 1 279,467 388 Construction 538,197 — — — 538,197 — Farmland 167,345 — — — 167,345 — Land 46,848 — — — 46,848 — Consumer loans Consumer loans 85,302 — — — 85,302 26 Totals $ 8,870,959 $ 2,299 $ 1,982 $ 11,481 $ 8,886,721 $ 12,858 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 $ 1,362,017 $ 309 $ 1,204 $ 931 $ 1,364,461 $ 931 Franchise 759,546 5,680 — 190 765,416 190 Commercial owner occupied 1,677,967 343 — 812 1,679,122 599 SBA 195,051 524 — 2,626 198,201 2,739 Agribusiness 138,519 — — — 138,519 — Real estate loans Commercial non-owner occupied 2,004,536 — — — 2,004,536 — 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 $ 8,839,152 $ 7,046 $ 1,242 $ 4,565 $ 8,852,005 $ 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 such 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) March 31, 2019 Business loans Commercial and industrial $ 1,978 $ 1,906 $ 190 $ 1,717 $ 143 Franchise 5,870 5,870 5,680 190 1,569 Commercial owner occupied 564 564 — 564 — SBA 13,059 4,104 2,871 1,232 1,500 Agribusiness 7,500 7,500 — 7,500 — Real estate loans One-to-four family 428 388 — 388 — Consumer loans Consumer loans 27 26 — 26 — Totals $ 29,426 $ 20,358 $ 8,741 $ 11,617 $ 3,212 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 March 31, 2019 December 31, 2018 March 31, 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 $ 2,003 $ — $ 1,210 $ 1 $ 1,181 $ — Franchise 3,976 — 196 — — — Commercial owner occupied 576 — 406 — 3,475 — SBA 3,279 2,741 — 1,241 — Agribusiness 7,500 89 2,500 35 — — Real estate loans Commercial non-owner occupied — — 430 — — — Multi-family — — — — 821 — One-to-four family 395 — 1,053 — 1,024 — Land — — 2 — 8 — Consumer loans Consumer loans 57 $ — 7 — 94 — Totals $ 17,786 $ 89 $ 8,545 $ 36 $ 7,844 $ — (1) Cash basis and accrual basis is materially the same. The following table provides additional detail on the components of impaired loans at the period end indicated: March 31, 2019 December 31, 2018 (dollars in thousands) Nonaccrual loans $ 12,858 $ 4,857 Accruing loans 7,500 7,601 Total impaired loans $ 20,358 $ 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 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 $12.9 million at March 31, 2019 and $4.9 million at December 31, 2018 . The Company had $162,000 in loans 90 days or more past due and still accruing at March 31, 2019 , all of which were PCI loans. Income recognition for 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 thousand in loans 90 days or more past due and still accruing at December 31, 2018 . There were no TDRs at March 31, 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 March 31, 2019 and 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: March 31, 2019 December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ — $ 10 Commercial owner occupied 582 632 SBA 1,228 1,265 Real estate loans Commercial non-owner occupied 280 275 Total purchased credit impaired $ 2,090 $ 2,182 On each acquisition date, the amount by which the undiscounted expected cash flows of the purchased credit impaired 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 purchased credit impaired loan. At March 31, 2019 , the Company had $2.1 million of purchased credit impaired loans, of which none were placed on nonaccrual status. The following table summarizes the accretable yield on the purchased credit impaired loans for the three month periods indicated. Three Months Ended March 31, December 31, March 31, 2019 2018 2018 (dollars in thousands) Balance at the beginning of period $ 411 $ 1,988 $ 3,019 Additions — — — Accretion (79 ) (262 ) (236 ) Payoffs — (47 ) (1,850 ) Sales — (1,293 ) — Reclassification from nonaccretable difference — 25 776 Balance at the end of period $ 332 $ 411 $ 1,709

Allowance for Loan Losses

Allowance for Loan Losses	3 Months Ended
	Mar. 31, 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. three months ended for the periods indicated: Three Months Ended March 31, 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 (302 ) — — — — — — — — — — (5 ) (307 ) Recoveries 67 — 8 3 — — — — — — — 1 79 Provisions for (reduction in) loan losses (136 ) 1,371 (89 ) 882 (146 ) 64 (56 ) (47 ) 28 161 (6 ) (14 ) 2,012 Balance, March 31, 2019 $ 10,450 $ 7,871 $ 1,305 $ 5,173 $ 3,137 $ 1,668 $ 669 $ 758 $ 5,194 $ 664 $ 766 $ 201 $ 37,856 Amount of allowance attributed to: Specifically evaluated impaired loans $ 143 $ 1,569 $ — $ 1,500 $ — $ — $ — $ — $ — $ — $ — $ — $ 3,212 General portfolio allocation 10,307 6,302 1,305 3,673 3,137 1,668 669 758 5,194 664 766 201 34,644 Loans individually evaluated for impairment 1,906 5,870 564 4,104 7,500 — — 388 — — — 26 20,358 Specific reserves to total loans individually evaluated for impairment 7.50 % 26.73 % — % 36.55 % — % — % — % — % — % — % — % — % 15.78 % Loans collectively evaluated for impairment $ 1,334,614 $ 807,187 $ 1,648,198 $ 184,653 $ 127,103 $ 2,124,250 $ 1,511,942 $ 279,079 $ 538,197 $ 167,345 $ 46,848 $ 85,276 $ 8,854,692 General reserves to total loans collectively evaluated for impairment 0.77 % 0.78 % 0.08 % 1.99 % 2.47 % 0.08 % 0.04 % 0.27 % 0.97 % 0.40 % 1.64 % 0.24 % 0.39 % Total gross loans held for investment $ 1,336,520 $ 813,057 $ 1,648,762 $ 188,757 $ 134,603 $ 2,124,250 $ 1,511,942 $ 279,467 $ 538,197 $ 167,345 $ 46,848 $ 85,302 $ 8,875,050 Total allowance to gross loans held for investment 0.78 % 0.97 % 0.08 % 2.74 % 2.33 % 0.08 % 0.04 % 0.27 % 0.97 % 0.40 % 1.64 % 0.24 % 0.43 % Three Months Ended March 31, 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 (665 ) — — (29 ) — — — — — — — (52 ) (746 ) Recoveries 25 — 8 26 — — — — — — — — 59 Provisions for (reduction in) loan losses 411 298 16 (73 ) 814 71 (15 ) (58 ) 506 97 179 7 2,253 Balance, March 31, 2018 $ 9,492 $ 6,095 $ 791 $ 2,814 $ 2,105 $ 1,337 $ 592 $ 745 $ 5,075 $ 234 $ 1,172 $ 50 $ 30,502 Amount of allowance attributed to: Specifically evaluated impaired loans $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — General portfolio allocation 9,492 6,095 791 2,814 2,105 1,337 592 745 5,075 234 1,172 50 30,502 Loans individually evaluated for impairment 1,067 — 3,475 1,218 — — 1,231 1,134 — — 8 16 8,149 Specific reserves to total loans individually evaluated for impairment — % — % — % — % — % — % — % — % — % — — % — % — % Loans collectively evaluated for impairment $ 1,061,318 $ 692,846 $ 1,265,394 $ 181,408 $ 149,256 $ 1,227,693 $ 816,732 $ 265,190 $ 319,610 136,522 $ 34,444 $ 86,190 $ 6,236,603 General reserves to total loans collectively evaluated for impairment 0.89 % 0.88 % 0.06 % 1.55 % 1.41 % 0.11 % 0.07 % 0.28 % 1.59 % 0.17 % 3.40 % 0.06 % 0.49 % Total gross loans held for investment $ 1,062,385 $ 692,846 $ 1,268,869 $ 182,626 $ 149,256 $ 1,227,693 $ 817,963 $ 266,324 $ 319,610 136,522 $ 34,452 $ 86,206 $ 6,244,752 Total allowance to gross loans held for investment 0.89 % 0.88 % 0.06 % 1.54 % 1.41 % 0.11 % 0.07 % 0.28 % 1.59 % 0.17 % 3.40 % 0.06 % 0.49 %

Subordinated Debentures

Subordinated Debentures	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Subordinated Debentures	Subordinated Debentures In August 2014, the Corporation issued $60 million in aggregate principal amount of 5.75% Subordinated Notes Due 2024 (the “Notes”) in a private placement transaction to institutional accredited investors (the “Private Placement”). The Corporation contributed $50 million of net proceeds from the Private Placement to the Bank to support general corporate purposes. The Notes 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 March 31, 2019 , the carrying value of the Notes was $59.3 million , net of unamortized debt issuance cost of $658,000 . As of March 31, 2019 , the Notes qualify as Tier 2 Capital. Principal and interest are due upon early redemption. 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. These ratings were reaffirmed by in April 2019 by KBRA. In March 2004, the Corporation issued $10.3 million of Floating Rate Junior Subordinated Deferrable Interest Debentures (the “Subordinated Debentures”) to PPBI Trust I, statutory trust created under the laws of the State of Delaware. The Debt Securities are subordinated to effectively all borrowings of the Corporation and are due and payable on April 6, 2034. Interest is payable quarterly on the Subordinated Debentures at three-month LIBOR plus 2.75% per annum, for an effective rate of 5.54% per annum, as of March 31, 2019 . The Subordinated Debentures may be redeemed, in part or whole, on or after April 7, 2009 at the option of the Corporation, at par. The Subordinated Debentures can also be redeemed at par if certain events occur that impact the tax treatment or the capital treatment of the issuance. The Corporation also purchased a 3% minority interest totaling $310,000 in PPBI Trust I. The balance of equity of PPBI Trust I is comprised of mandatorily redeemable securities (“Trust Preferred Securities”) and is 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 April 1, 2017, as part of the 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 4.52% per annum as of March 31, 2019 . At March 31, 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 March 31, 2019 , the carrying value of Mission Community Capital Trust I and Santa Lucia Bancorp (CA) Capital Trust were $2.8 million and $3.8 million , respectively, which reflects purchase accounting fair value adjustments of $301,000 and $1.3 million , respectively. Interest is payable quarterly at three-month LIBOR plus 2.95% per annum, for an effective rate of 5.74% per annum as of March 31, 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 4.27% per annum as of March 31, 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 $25.0 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 March 31, 2019 , the carrying value of these subordinated notes was $25.2 million , which reflects purchase accounting fair value adjustments of $151,000 . On July 1, 2018, as part of the Grandpoint acquisition, the Corporation assumed $5.2 million of floating rate junior subordinated debt securities associated with First Commerce Bancorp Statutory Trust I. Interest is payable quarterly at three-month LIBOR plus 2.95% per annum, for an effective rate of 5.56% per annum as of March 31, 2019 . At March 31, 2019 , the carrying value of these debentures was $4.9 million , which reflects purchase accounting fair value adjustments of $221,000 .

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 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, and approved that unvested restricted stock awards will be considered participating securities. R estricted stock units (“RSUs”) awarded to the Company’s named executive officers in 2018 and 2019, the vesting of which depends on the Company’s relative total shareholder return (“rTSR”) as compared to the KBW Nasdaq Regional Banking Index (“KRX”) over a three-year performance period, are not participating securities. If the Company’s KRX ranking for rTSR is below the 25 th percentile (the “threshold level”) at the end of the relevant three-year performance period, no RSUs granted to such named executive officer(s) in 2018 or 2019, as the case may be, will vest and they will be forfeited in their entirety. If the Company’s KRX rating for rTSR reaches the 25 th , 50 th , 75 th or 90 th percentiles at the end of the relevant three-year performance period, 50%, 100%, 150% or 200%, respectively, of the RSUs granted to named executive officers in 2018 or 2019, as the case may be, will vest on the third anniversary of the relevant grant date, unless earlier forfeited. 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 are 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 are 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 March 31, 2019 December 31, 2018 March 31, 2018 (dollars in thousands, except per share data) Basic Net income $ 38,718 $ 39,643 $ 28,002 Less: Earnings allocated to participating securities (347 ) — — Net income allocated to common stockholders 38,371 39,643 28,002 Weighted average common shares outstanding 61,987,605 61,917,184 45,893,496 Basic earnings per common share $ 0.62 $ 0.64 $ 0.61 Diluted Net income allocated to common stockholders $ 38,371 $ 39,643 $ 28,002 Weighted average common shares outstanding 61,987,605 61,917,184 45,893,496 Diluted effect of share-based compensation 298,178 539,916 758,563 Weighted average diluted common shares 62,285,783 62,457,100 46,652,059 Diluted earnings per common share $ 0.62 $ 0.63 $ 0.60

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 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 uses 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 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: March 31, 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 $ — $ 61,901 $ — $ 61,901 Agency — 165,488 — 165,488 Corporate — 137,855 — 137,855 Municipal bonds — 217,016 — 217,016 Collateralized mortgage obligation — 23,451 — 23,451 Mortgage-backed securities — 565,699 — 565,699 Total securities available-for-sale $ — $ 1,171,410 $ — $ 1,171,410 Derivative assets $ — $ 1,068 $ — $ 1,068 Financial liabilities Derivative liabilities $ — $ 1,068 $ — $ 1,068 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: 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. As such, the Company records impaired loans and OREO as Level 3. At March 31, 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 has recorded a specific reserve in the amount of $3.2 million on 10 loans with a recorded balance of $8.7 million . 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. 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 March 31, 2019 Carrying Amount Level 1 Level 2 Level 3 Estimated Fair Value (dollars in thousands) Assets: Cash and cash equivalents $ 178,382 $ 178,382 $ — $ — $ 178,382 Interest-bearing time deposits with financial institutions 5,896 5,896 — — 5,896 Investments held-to-maturity 43,894 — 43,980 — 43,980 Investment securities available-for-sale 1,171,410 — 1,171,410 — 1,171,410 Loans held for sale 11,671 — 12,469 — 12,469 Loans held for investment, net 8,865,855 — — 8,779,827 8,779,827 Derivative asset 1,068 — 1,068 — 1,068 Accrued interest receivable 40,302 40,302 — — 40,302 Liabilities: Deposit accounts 8,715,175 7,123,041 1,587,744 — 8,710,785 FHLB advances 609,591 — 610,589 — 610,589 Subordinated debentures 110,381 — 118,827 — 118,827 Derivative liability 1,068 — 1,068 — 1,068 Accrued interest payable 2,803 2,803 — — 2,803 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	3 Months Ended
	Mar. 31, 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 $57.0 million and a fair value of $1.1 million at March 31, 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 non-interest 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 three months ended March 31, 2019 and March 31, 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 March 31, 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: March 31, 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 $ 57,023 $ 1,068 $ 57,023 $ 1,068 Total derivative instruments $ 57,023 $ 1,068 $ 57,023 $ 1,068 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	3 Months Ended
	Mar. 31, 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 March 31, 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) March 31, 2019 Financial assets: Derivatives not designated as hedging instruments $ 1,697 $ (629 ) $ 1,068 $ — $ — $ 1,068 Total $ 1,697 $ (629 ) $ 1,068 $ — $ — $ 1,068 Financial liabilities: Derivatives not designated as hedging instruments $ 1,068 $ — $ 1,068 $ — $ — $ 1,068 Total $ 1,068 $ — $ 1,068 $ — $ — $ 1,068 (1) Represents cash collateral held 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	3 Months Ended
	Mar. 31, 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 March 31, 2019 , all of the Company’s leases were classified as either 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 months ended March 31, 2019 expense associated with the Company’s leases totaled $3.4 million and was recorded in premises and occupancy expense in the consolidated statements of income. Of this amount, approximately $2.7 million is attributed to operating leases, while $691,000 is attributed to short-term leases, which 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: March 31, 2019 (dollars in thousands) Balance Sheet: Operating lease right of use assets $ 41,800 Operating lease liabilities 43,892 Cash Flows: Operating cash flows from operating leases 2,545 The following table provides information related to minimum contractual lease payments and other information associated with the Company’s leases as of March 31, 2019: 2019 2020 2021 2022 2023 Thereafter Total (dollars in thousands) Contractual base rents (1) : Operating leases $ 10,004 $ 8,550 $ 8,865 $ 8,511 $ 7,021 $ 9,689 $ 52,640 Short-term leases 958 — — — — — 958 Total contractual base rents $ 10,962 $ 8,550 $ 8,865 $ 8,511 $ 7,021 $ 9,689 $ 53,598 Total liability to make lease payments $ 43,892 Difference in undiscounted and discounted future lease payments $ 9,706 Weighted average discount rate 6.34 % Weighted average remaining lease term (years) 5.6 (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 March 31, 2019 and 2018, income from these transactions was not significant. 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 based 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 have not yet commenced as of December 31, 2018.

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 31, 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 non-interest 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 March 31, 2019 December 31, 2018 March 31, 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 $ — $ 121,476 $ — $ 126,341 $ — $ 84,173 Investment securities and other interest-earning assets — 9,767 — 9,680 — 6,654 Total interest income — 131,243 — 136,021 — 90,827 Noninterest income: Loan servicing fees — 398 — 408 — 345 Service charges on deposit accounts 1,330 — 1,351 — 1,150 — Other service fee income 356 — 270 — 146 — Debit card interchange income 1,071 — 1,139 — 1,036 — Earnings on bank-owned life insurance — 910 — 929 — 611 Net gain from sales of loans — 1,729 — 1,929 — 2,958 Net gain from sales of investment securities — 427 — — — 6 Other income 192 1,268 1,158 (214 ) 237 1,177 Total noninterest income 2,949 4,732 3,918 3,052 2,569 5,097 Total revenues $ 2,949 $ 135,975 $ 3,918 $ 139,073 $ 2,569 $ 95,924 (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. This revenue stream is 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 March 31, 2019

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Quarterly Cash Dividend On April 19, 2019, the Corporation’s Board of Directors declared a cash dividend of $0.22 per share, payable on May 15, 2019 to shareholders of record on May 1, 2019. Stock Repurchase In April 2019, the Corporation repurchased a total of 92,959 shares at an average price of $29.42 per share with a total cost of $2.7 million . Issuance of Subordinated Notes On May 8, 2019, the Corporation issued and sold to the public $125 million aggregate principal amount of its 4.875% Fixed-to-Floating Rate Subordinated Notes due May 15, 2029 (the “Notes”), at a public offering price equal to 100% of the aggregate principal amount of the Notes (the “Offering”). The Corporation estimates that the net proceeds from the Offering, after deducting underwriting discounts and estimated expenses, will be approximately $122.4 million

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 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 Purchase 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) , ASU 2018-11, Leases (Topic 842): Targeted Improvements , ASU 2018-10, Codification Improvements to Topic 842, Leases . This Update is being issued to increase the transparency and comparability around lease obligations. Previously unrecorded off-balance sheet obligations and corresponding rights to use underlying leased assets will now be 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 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 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 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
Revenue Recognition	Revenue Recognition – The Company accounts for certain of its revenue streams in accordance with ASC 606 - Revenue from Contracts with Customers
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
Use of Estimates	Use of Estimates – The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.
Fair Value Measurement	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 uses 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 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: March 31, 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 $ — $ 61,901 $ — $ 61,901 Agency — 165,488 — 165,488 Corporate — 137,855 — 137,855 Municipal bonds — 217,016 — 217,016 Collateralized mortgage obligation — 23,451 — 23,451 Mortgage-backed securities — 565,699 — 565,699 Total securities available-for-sale $ — $ 1,171,410 $ — $ 1,171,410 Derivative assets $ — $ 1,068 $ — $ 1,068 Financial liabilities Derivative liabilities $ — $ 1,068 $ — $ 1,068 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: 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. As such, the Company records impaired loans and OREO as Level 3. At March 31, 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 has recorded a specific reserve in the amount of $3.2 million on 10 loans with a recorded balance of $8.7 million .

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 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 (9,802 ) 4,383 Other assets 97,441 (195 ) 97,246 Total assets acquired $ 3,051,567 $ 24,253 $ 3,075,820 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 $ 23,047 289,109 Consideration paid 602,152 Goodwill recognized $ 313,043
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 was 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	There were no material, nonrecurring adjustments to the pro forma net interest and other income, net income and earnings per share presented below: Three Months Ended March 31, December 31, March 31, 2019 2018 2018 (dollars in thousands) Net interest and other income $ 117,561 $ 122,258 $ 116,618 Net income 38,718 39,643 36,695 Basic earnings per share 0.62 0.64 0.60 Diluted earnings per share 0.62 0.63 0.59

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 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: March 31, 2019 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value (dollars in thousands) Investment securities available-for-sale: U.S. Treasury $ 59,716 $ 2,185 $ — $ 61,901 Agency 161,945 3,987 (444 ) 165,488 Corporate 138,128 538 (811 ) 137,855 Municipal bonds 213,561 4,122 (667 ) 217,016 Collateralized mortgage obligation: residential 23,642 70 (261 ) 23,451 Mortgage-backed securities: residential 567,348 3,669 (5,318 ) 565,699 Total investment securities available-for-sale 1,164,340 14,571 (7,501 ) 1,171,410 Investment securities held-to-maturity: Mortgage-backed securities: residential 42,083 466 (380 ) 42,169 Other 1,811 — — 1,811 Total investment securities held-to-maturity 43,894 466 (380 ) 43,980 Total investment securities $ 1,208,234 $ 15,037 $ (7,881 ) $ 1,215,390 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. March 31, 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 6 $ 27,200 $ (189 ) 8 $ 14,583 $ (255 ) 14 $ 41,783 $ (444 ) Corporate 9 51,516 (363 ) 10 28,837 (448 ) 19 80,353 (811 ) Municipal bonds 4 12,087 (18 ) 58 39,763 (649 ) 62 51,850 (667 ) Collateralized mortgage obligation: residential 1 758 (1 ) 8 17,433 (260 ) 9 18,191 (261 ) Mortgage-backed securities: residential 2 21,784 (415 ) 106 291,110 (4,903 ) 108 312,894 (5,318 ) Total investment securities available-for-sale 22 113,345 (986 ) 190 391,726 (6,515 ) 212 505,071 (7,501 ) Investment securities held-to-maturity: Mortgage-backed securities: residential — — — 4 17,131 (380 ) 4 17,131 (380 ) Total investment securities held-to-maturity — — — 4 17,131 (380 ) 4 17,131 (380 ) Total investment securities 22 $ 113,345 $ (986 ) 194 $ 408,857 $ (6,895 ) 216 $ 522,202 $ (7,881 ) 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 March 31, 2019 , by contractual maturity are shown in the table below. One Year or Less More than One Year to Five Years More than Five Years to Ten Years More than 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 $ 495 $ 495 $ 9,917 $ 10,214 $ 49,304 $ 51,192 $ — $ — $ 59,716 $ 61,901 Agency — — 32,098 33,108 84,589 87,279 45,258 45,101 161,945 165,488 Corporate — — — — 138,128 137,855 — — 138,128 137,855 Municipal bonds 250 250 2,186 2,202 40,705 40,946 170,420 173,618 213,561 217,016 Collateralized mortgage obligation: residential — — — — 2,957 2,916 20,685 20,535 23,642 23,451 Mortgage-backed securities: residential — — 479 471 136,950 137,977 429,919 427,251 567,348 565,699 Total investment securities available-for-sale 745 745 44,680 45,995 452,633 458,165 666,282 666,505 1,164,340 1,171,410 Investment securities held-to-maturity: Mortgage-backed securities: residential — — 923 947 — — 41,160 41,222 42,083 42,169 Other — — — — — — 1,811 1,811 1,811 1,811 Total investment securities held-to-maturity — — 923 947 — — 42,971 43,033 43,894 43,980 Total investment securities $ 745 $ 745 $ 45,603 $ 46,942 $ 452,633 $ 458,165 $ 709,253 $ 709,538 $ 1,208,234 $ 1,215,390

Loans Held for Investment (Tabl

Loans Held for Investment (Tables)	3 Months Ended
	Mar. 31, 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: March 31, 2019 December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,336,520 $ 1,364,423 Franchise 813,057 765,416 Commercial owner occupied (1) 1,648,762 1,679,122 SBA 188,757 193,882 Agribusiness 134,603 138,519 Total business loans 4,121,699 4,141,362 Real estate loans Commercial non-owner occupied 2,124,250 2,003,174 Multi-family 1,511,942 1,535,289 One-to-four family (2) 279,467 356,264 Construction 538,197 523,643 Farmland 167,345 150,502 Land 46,848 46,628 Total real estate loans 4,668,049 4,615,500 Consumer loans Consumer loans 85,302 89,424 Gross loans held for investment (3) 8,875,050 8,846,286 Deferred loan origination (fees)/costs and (discounts)/premiums, net (9,195 ) (9,468 ) Loans held for investment 8,865,855 8,836,818 Allowance for loan losses (37,856 ) (36,072 ) Loans held for investment, net $ 8,827,999 $ 8,800,746 Loans held for sale, at lower of cost or fair value $ 11,671 $ 5,719 ______________________________ (1) Secured by real estate. (2) Includes second trust deeds. (3) Total gross loans held for investment for March 31, 2019 and December 31, 2018 are net of the unaccreted fair value net purchase discounts of $57.2 million and $61.0 million
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 March 31, 2019 (dollars in thousands) Business loans Commercial and industrial $ 1,323,301 $ 6,481 $ 6,738 $ — $ 1,336,520 Franchise 802,898 4,289 5,870 — 813,057 Commercial owner occupied 1,634,458 948 13,356 — 1,648,762 SBA 189,338 1,174 7,365 — 197,877 Agribusiness 120,753 — 13,850 — 134,603 Real estate loans Commercial non-owner occupied 2,125,422 — 1,379 — 2,126,801 Multi-family 1,507,242 4,039 661 — 1,511,942 One-to-four family 277,450 601 1,416 — 279,467 Construction 538,197 — — — 538,197 Farmland 167,228 — 117 — 167,345 Land 46,653 134 61 — 46,848 Consumer loans Consumer loans 85,175 — 127 — 85,302 Totals $ 8,818,115 $ 17,666 $ 50,940 $ — $ 8,886,721 Credit Risk Grades Pass Special Substandard Doubtful Total Gross December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ 1,340,322 $ 12,005 $ 12,134 $ — $ 1,364,461 Franchise 760,795 4,431 190 — 765,416 Commercial owner occupied 1,660,994 1,580 16,548 — 1,679,122 SBA 189,006 2,289 6,906 — 198,201 Agribusiness 125,355 — 13,164 — 138,519 Real estate loans Commercial non-owner occupied 1,998,118 731 5,687 — 2,004,536 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 $ 8,764,593 $ 25,956 $ 61,456 $ — $ 8,852,005
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 March 31, 2019 (dollars in thousands) Business loans Commercial and industrial $ 1,333,664 $ 524 $ 1,439 $ 893 $ 1,336,520 $ 1,906 Franchise 807,187 — — 5,870 813,057 5,870 Commercial owner occupied 1,648,036 — — 726 1,648,762 564 SBA 192,818 965 103 3,991 197,877 4,104 Agribusiness 134,593 10 — — 134,603 — Real estate loans Commercial non-owner occupied 2,126,070 731 — — 2,126,801 — Multi-family 1,511,502 — 440 — 1,511,942 — One-to-four family 279,397 69 — 1 279,467 388 Construction 538,197 — — — 538,197 — Farmland 167,345 — — — 167,345 — Land 46,848 — — — 46,848 — Consumer loans Consumer loans 85,302 — — — 85,302 26 Totals $ 8,870,959 $ 2,299 $ 1,982 $ 11,481 $ 8,886,721 $ 12,858 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 $ 1,362,017 $ 309 $ 1,204 $ 931 $ 1,364,461 $ 931 Franchise 759,546 5,680 — 190 765,416 190 Commercial owner occupied 1,677,967 343 — 812 1,679,122 599 SBA 195,051 524 — 2,626 198,201 2,739 Agribusiness 138,519 — — — 138,519 — Real estate loans Commercial non-owner occupied 2,004,536 — — — 2,004,536 — 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 $ 8,839,152 $ 7,046 $ 1,242 $ 4,565 $ 8,852,005 $ 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) March 31, 2019 Business loans Commercial and industrial $ 1,978 $ 1,906 $ 190 $ 1,717 $ 143 Franchise 5,870 5,870 5,680 190 1,569 Commercial owner occupied 564 564 — 564 — SBA 13,059 4,104 2,871 1,232 1,500 Agribusiness 7,500 7,500 — 7,500 — Real estate loans One-to-four family 428 388 — 388 — Consumer loans Consumer loans 27 26 — 26 — Totals $ 29,426 $ 20,358 $ 8,741 $ 11,617 $ 3,212 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 March 31, 2019 December 31, 2018 March 31, 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 $ 2,003 $ — $ 1,210 $ 1 $ 1,181 $ — Franchise 3,976 — 196 — — — Commercial owner occupied 576 — 406 — 3,475 — SBA 3,279 2,741 — 1,241 — Agribusiness 7,500 89 2,500 35 — — Real estate loans Commercial non-owner occupied — — 430 — — — Multi-family — — — — 821 — One-to-four family 395 — 1,053 — 1,024 — Land — — 2 — 8 — Consumer loans Consumer loans 57 $ — 7 — 94 — Totals $ 17,786 $ 89 $ 8,545 $ 36 $ 7,844 $ — (1) Cash basis and accrual basis is materially the same.
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: March 31, 2019 December 31, 2018 (dollars in thousands) Nonaccrual loans $ 12,858 $ 4,857 Accruing loans 7,500 7,601 Total impaired loans $ 20,358 $ 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: March 31, 2019 December 31, 2018 (dollars in thousands) Business loans Commercial and industrial $ — $ 10 Commercial owner occupied 582 632 SBA 1,228 1,265 Real estate loans Commercial non-owner occupied 280 275 Total purchased credit impaired $ 2,090 $ 2,182
Summary of accretable yield on purchased credit impaired	The following table summarizes the accretable yield on the purchased credit impaired loans for the three month periods indicated. Three Months Ended March 31, December 31, March 31, 2019 2018 2018 (dollars in thousands) Balance at the beginning of period $ 411 $ 1,988 $ 3,019 Additions — — — Accretion (79 ) (262 ) (236 ) Payoffs — (47 ) (1,850 ) Sales — (1,293 ) — Reclassification from nonaccretable difference — 25 776 Balance at the end of period $ 332 $ 411 $ 1,709

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 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 three months ended for the periods indicated: Three Months Ended March 31, 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 (302 ) — — — — — — — — — — (5 ) (307 ) Recoveries 67 — 8 3 — — — — — — — 1 79 Provisions for (reduction in) loan losses (136 ) 1,371 (89 ) 882 (146 ) 64 (56 ) (47 ) 28 161 (6 ) (14 ) 2,012 Balance, March 31, 2019 $ 10,450 $ 7,871 $ 1,305 $ 5,173 $ 3,137 $ 1,668 $ 669 $ 758 $ 5,194 $ 664 $ 766 $ 201 $ 37,856 Amount of allowance attributed to: Specifically evaluated impaired loans $ 143 $ 1,569 $ — $ 1,500 $ — $ — $ — $ — $ — $ — $ — $ — $ 3,212 General portfolio allocation 10,307 6,302 1,305 3,673 3,137 1,668 669 758 5,194 664 766 201 34,644 Loans individually evaluated for impairment 1,906 5,870 564 4,104 7,500 — — 388 — — — 26 20,358 Specific reserves to total loans individually evaluated for impairment 7.50 % 26.73 % — % 36.55 % — % — % — % — % — % — % — % — % 15.78 % Loans collectively evaluated for impairment $ 1,334,614 $ 807,187 $ 1,648,198 $ 184,653 $ 127,103 $ 2,124,250 $ 1,511,942 $ 279,079 $ 538,197 $ 167,345 $ 46,848 $ 85,276 $ 8,854,692 General reserves to total loans collectively evaluated for impairment 0.77 % 0.78 % 0.08 % 1.99 % 2.47 % 0.08 % 0.04 % 0.27 % 0.97 % 0.40 % 1.64 % 0.24 % 0.39 % Total gross loans held for investment $ 1,336,520 $ 813,057 $ 1,648,762 $ 188,757 $ 134,603 $ 2,124,250 $ 1,511,942 $ 279,467 $ 538,197 $ 167,345 $ 46,848 $ 85,302 $ 8,875,050 Total allowance to gross loans held for investment 0.78 % 0.97 % 0.08 % 2.74 % 2.33 % 0.08 % 0.04 % 0.27 % 0.97 % 0.40 % 1.64 % 0.24 % 0.43 % Three Months Ended March 31, 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 (665 ) — — (29 ) — — — — — — — (52 ) (746 ) Recoveries 25 — 8 26 — — — — — — — — 59 Provisions for (reduction in) loan losses 411 298 16 (73 ) 814 71 (15 ) (58 ) 506 97 179 7 2,253 Balance, March 31, 2018 $ 9,492 $ 6,095 $ 791 $ 2,814 $ 2,105 $ 1,337 $ 592 $ 745 $ 5,075 $ 234 $ 1,172 $ 50 $ 30,502 Amount of allowance attributed to: Specifically evaluated impaired loans $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — General portfolio allocation 9,492 6,095 791 2,814 2,105 1,337 592 745 5,075 234 1,172 50 30,502 Loans individually evaluated for impairment 1,067 — 3,475 1,218 — — 1,231 1,134 — — 8 16 8,149 Specific reserves to total loans individually evaluated for impairment — % — % — % — % — % — % — % — % — % — — % — % — % Loans collectively evaluated for impairment $ 1,061,318 $ 692,846 $ 1,265,394 $ 181,408 $ 149,256 $ 1,227,693 $ 816,732 $ 265,190 $ 319,610 136,522 $ 34,444 $ 86,190 $ 6,236,603 General reserves to total loans collectively evaluated for impairment 0.89 % 0.88 % 0.06 % 1.55 % 1.41 % 0.11 % 0.07 % 0.28 % 1.59 % 0.17 % 3.40 % 0.06 % 0.49 % Total gross loans held for investment $ 1,062,385 $ 692,846 $ 1,268,869 $ 182,626 $ 149,256 $ 1,227,693 $ 817,963 $ 266,324 $ 319,610 136,522 $ 34,452 $ 86,206 $ 6,244,752 Total allowance to gross loans held for investment 0.89 % 0.88 % 0.06 % 1.54 % 1.41 % 0.11 % 0.07 % 0.28 % 1.59 % 0.17 % 3.40 % 0.06 % 0.49 %

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 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 March 31, 2019 December 31, 2018 March 31, 2018 (dollars in thousands, except per share data) Basic Net income $ 38,718 $ 39,643 $ 28,002 Less: Earnings allocated to participating securities (347 ) — — Net income allocated to common stockholders 38,371 39,643 28,002 Weighted average common shares outstanding 61,987,605 61,917,184 45,893,496 Basic earnings per common share $ 0.62 $ 0.64 $ 0.61 Diluted Net income allocated to common stockholders $ 38,371 $ 39,643 $ 28,002 Weighted average common shares outstanding 61,987,605 61,917,184 45,893,496 Diluted effect of share-based compensation 298,178 539,916 758,563 Weighted average diluted common shares 62,285,783 62,457,100 46,652,059 Diluted earnings per common share $ 0.62 $ 0.63 $ 0.60

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
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 March 31, 2019 Carrying Amount Level 1 Level 2 Level 3 Estimated Fair Value (dollars in thousands) Assets: Cash and cash equivalents $ 178,382 $ 178,382 $ — $ — $ 178,382 Interest-bearing time deposits with financial institutions 5,896 5,896 — — 5,896 Investments held-to-maturity 43,894 — 43,980 — 43,980 Investment securities available-for-sale 1,171,410 — 1,171,410 — 1,171,410 Loans held for sale 11,671 — 12,469 — 12,469 Loans held for investment, net 8,865,855 — — 8,779,827 8,779,827 Derivative asset 1,068 — 1,068 — 1,068 Accrued interest receivable 40,302 40,302 — — 40,302 Liabilities: Deposit accounts 8,715,175 7,123,041 1,587,744 — 8,710,785 FHLB advances 609,591 — 610,589 — 610,589 Subordinated debentures 110,381 — 118,827 — 118,827 Derivative liability 1,068 — 1,068 — 1,068 Accrued interest payable 2,803 2,803 — — 2,803 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
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: March 31, 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 $ — $ 61,901 $ — $ 61,901 Agency — 165,488 — 165,488 Corporate — 137,855 — 137,855 Municipal bonds — 217,016 — 217,016 Collateralized mortgage obligation — 23,451 — 23,451 Mortgage-backed securities — 565,699 — 565,699 Total securities available-for-sale $ — $ 1,171,410 $ — $ 1,171,410 Derivative assets $ — $ 1,068 $ — $ 1,068 Financial liabilities Derivative liabilities $ — $ 1,068 $ — $ 1,068 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: 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

Derivative Instruments (Tables)

Derivative Instruments (Tables)	3 Months Ended
	Mar. 31, 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: March 31, 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 $ 57,023 $ 1,068 $ 57,023 $ 1,068 Total derivative instruments $ 57,023 $ 1,068 $ 57,023 $ 1,068 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)	3 Months Ended
	Mar. 31, 2019
Offsetting [Abstract]
Offsetting Assets and Liabilities	Financial instruments that are eligible for offset in the consolidated statements of financial condition as of March 31, 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) March 31, 2019 Financial assets: Derivatives not designated as hedging instruments $ 1,697 $ (629 ) $ 1,068 $ — $ — $ 1,068 Total $ 1,697 $ (629 ) $ 1,068 $ — $ — $ 1,068 Financial liabilities: Derivatives not designated as hedging instruments $ 1,068 $ — $ 1,068 $ — $ — $ 1,068 Total $ 1,068 $ — $ 1,068 $ — $ — $ 1,068 (1) Represents cash collateral held 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)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Schedule of Supplemental Information	The following table presents supplemental information related to operating leases as of the period indicated: March 31, 2019 (dollars in thousands) Balance Sheet: Operating lease right of use assets $ 41,800 Operating lease liabilities 43,892 Cash Flows: Operating cash flows from operating leases 2,545
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 March 31, 2019: 2019 2020 2021 2022 2023 Thereafter Total (dollars in thousands) Contractual base rents (1) : Operating leases $ 10,004 $ 8,550 $ 8,865 $ 8,511 $ 7,021 $ 9,689 $ 52,640 Short-term leases 958 — — — — — 958 Total contractual base rents $ 10,962 $ 8,550 $ 8,865 $ 8,511 $ 7,021 $ 9,689 $ 53,598 Total liability to make lease payments $ 43,892 Difference in undiscounted and discounted future lease payments $ 9,706 Weighted average discount rate 6.34 % Weighted average remaining lease term (years) 5.6 (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 based 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 have not yet commenced as of December 31, 2018.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 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 March 31, 2019 December 31, 2018 March 31, 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 $ — $ 121,476 $ — $ 126,341 $ — $ 84,173 Investment securities and other interest-earning assets — 9,767 — 9,680 — 6,654 Total interest income — 131,243 — 136,021 — 90,827 Noninterest income: Loan servicing fees — 398 — 408 — 345 Service charges on deposit accounts 1,330 — 1,351 — 1,150 — Other service fee income 356 — 270 — 146 — Debit card interchange income 1,071 — 1,139 — 1,036 — Earnings on bank-owned life insurance — 910 — 929 — 611 Net gain from sales of loans — 1,729 — 1,929 — 2,958 Net gain from sales of investment securities — 427 — — — 6 Other income 192 1,268 1,158 (214 ) 237 1,177 Total noninterest income 2,949 4,732 3,918 3,052 2,569 5,097 Total revenues $ 2,949 $ 135,975 $ 3,918 $ 139,073 $ 2,569 $ 95,924 (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	Mar. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities	$ 43,892
Operating lease right of use assets	$ 41,800
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

Significant Accounting Polici_3

Significant Accounting Policies (Details) - Core Deposits	3 Months Ended
	Mar. 31, 2019
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Weighted average useful life (in years)	6 years
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Weighted average useful life (in years)	10 years

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) $ / shares in Units, $ in Thousands	Jul. 01, 2018USD ($)$ / sharesshares	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Goodwill		$ 808,726	$ 808,726
Grandpoint Capital, Inc.
Business Acquisition [Line Items]
Total assets acquired	$ 3,051,567	3,075,820
Gross loans acquired	2,400,000
Total deposits acquired	$ 2,506,663	2,506,929
Equity issued, ratio	0.4750
Consideration paid	$ 602,152
Aggregate cash consideration payable	$ 28,100
Company's common stock value (usd per share) | $ / shares	$ 38.15
Goodwill	$ 313,000	$ 313,043
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 - Schedule (Details) - USD ($) $ in Thousands	Jul. 01, 2018	Mar. 31, 2019	Dec. 31, 2018
LIABILITIES ASSUMED
Goodwill recognized		$ 808,726	$ 808,726
Grandpoint Capital, Inc.
ASSETS ACQUIRED
Cash and cash equivalents	$ 147,551	147,551
Investment securities	395,905	392,858
Loans, gross	2,404,042	2,352,717
Allowance for loan losses	(18,665)	0
Fixed assets	6,015	9,122
Core deposit intangible	5,093	71,943
Deferred tax assets	14,185	4,383
Other assets	97,441	97,246
Total assets acquired	3,051,567	3,075,820
LIABILITIES ASSUMED
Deposits	2,506,663	2,506,929
Borrowings	255,155	254,923
Other Liabilities	23,687	24,859
Total liabilities assumed	2,785,505	2,786,711
Excess of assets acquired over liabilities assumed	266,062	289,109
Consideration paid	602,152
Goodwill recognized	$ 313,000	313,043
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		(9,802)
Other assets		(195)
Total assets acquired		24,253
Deposits		266
Borrowings		(232)
Other Liabilities		1,172
Total liabilities assumed		1,206
Excess of assets acquired over liabilities assumed		$ 23,047

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) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Business Combinations [Abstract]
Net interest and other income	$ 117,561	$ 122,258	$ 116,618
Net income	$ 38,718	$ 39,643	$ 36,695
Basic earnings per share (in dollars per share)	$ 0.62	$ 0.64	$ 0.60
Diluted earnings per share (in dollars per share)	$ 0.62	$ 0.63	$ 0.59

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Available for sale:
Total	$ 1,164,340	$ 1,111,168
Unrealized Gain	14,571	6,263
Unrealized Loss	(7,501)	(14,209)
Estimated Fair Value	1,171,410	1,103,222
Held to maturity:
Amortized Cost	43,894	45,210
Unrealized Gain	466	148
Unrealized Loss	(380)	(686)
Estimated Fair Value	43,980	44,672
Total investment securities
Amortized Cost	1,208,234	1,156,378
Unrealized Gain	15,037	6,411
Unrealized Loss	(7,881)	(14,895)
Estimated Fair Value	1,215,390	1,147,894
U.S. Treasury
Available for sale:
Total	59,716	59,688
Unrealized Gain	2,185	1,224
Unrealized Loss	0	0
Estimated Fair Value	61,901	60,912
Agency
Available for sale:
Total	161,945	128,958
Unrealized Gain	3,987	1,631
Unrealized Loss	(444)	(519)
Estimated Fair Value	165,488	130,070
Corporate
Available for sale:
Total	138,128	104,158
Unrealized Gain	538	291
Unrealized Loss	(811)	(906)
Estimated Fair Value	137,855	103,543
Municipal bonds
Available for sale:
Total	213,561	238,914
Unrealized Gain	4,122	1,941
Unrealized Loss	(667)	(2,225)
Estimated Fair Value	217,016	238,630
Collateralized mortgage obligation: residential
Available for sale:
Total	23,642	24,699
Unrealized Gain	70	64
Unrealized Loss	(261)	(425)
Estimated Fair Value	23,451	24,338
Mortgage-backed securities: residential
Available for sale:
Total	567,348	554,751
Unrealized Gain	3,669	1,112
Unrealized Loss	(5,318)	(10,134)
Estimated Fair Value	565,699	545,729
Held to maturity:
Amortized Cost	42,083	43,381
Unrealized Gain	466	148
Unrealized Loss	(380)	(686)
Estimated Fair Value	42,169	42,843
Other
Held to maturity:
Amortized Cost	1,811	1,829
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	$ 1,811	$ 1,829

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($)	3 Months Ended			12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2018
Investment Securities
Accumulated other comprehensive income (loss) before tax amount	$ 7,100,000	$ (7,900,000)		$ (7,900,000)
Accumulated other comprehensive income (loss), net of tax	5,060,000	(5,601,000)		(5,601,000)
Securities Sold under Agreements to Repurchase, Average Balance		15,000,000		15,000,000
Gross gains	1,000,000		$ 6,000	0
Gross losses	615,000	0	$ 0
Proceeds from available-for-sale securities	168,800,000
FHLB stock	18,900,000
FRB stock	51,600,000
Other stock	24,300,000
Amount of stock repurchased by FHLB	$ 12,900,000			9,900,000
HOA
Investment Securities
Value of inverse putable reverse repurchases secured by collateral		75,000		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		20,300,000
Fair value of securities pledged as collateral for the Bank's inverse putable reverse repurchases		$ 20,900,000		$ 20,900,000

Investment Securities - Investm

Investment Securities - Investment Category and Length of Time (Details) $ in Thousands	Mar. 31, 2019USD ($)investment_security	Dec. 31, 2018USD ($)investment_security
Less than 12 Months
Number | investment_security	22	105
Fair Value	$ 113,345	$ 190,770
Gross Unrealized Holding Losses	$ (986)	$ (1,609)
12 Months or Longer
Number | investment_security	190	244
Fair Value	$ 391,726	$ 442,464
Gross Unrealized Holding Losses	$ (6,515)	$ (12,600)
Total
Number | investment_security	212	349
Fair Value	$ 505,071	$ 633,234
Gross Unrealized Holding Losses	$ (7,501)	$ (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	4	3
Held-to-maturity, 12 months or longer, fair value	$ 17,131	$ 15,741
Held-to-maturity, 12 months or longer, gross unrealized holding losses	$ (380)	$ (605)
Held-to-maturity, number of securities | investment_security	4	6
Held-to-maturity securities, fair value	$ 17,131	$ 26,997
Unrealized Loss	$ (380)	$ (686)
Total securities, less than 12 months, number of securities | investment_security	22	108
Total securities, less than 12 months, fair value	$ 113,345	$ 202,026
Total securities, less than 12 months, gross unrealized holding losses	$ (986)	$ (1,690)
Total securities, 12 months or longer, number of securities | investment_security	194	247
Total securities, 12 months or longer, fair value	$ 408,857	$ 458,205
Total securities, 12 months or longer, gross unrealized holding losses	$ (6,895)	$ (13,205)
Total securities, number of securities | investment_security	216	355
Total securities, fair value	$ 522,202	$ 660,231
Total securities, gross unrealized holding losses	$ (7,881)	$ (14,895)
Agency
Less than 12 Months
Number | investment_security	6	15
Fair Value	$ 27,200	$ 26,229
Gross Unrealized Holding Losses	$ (189)	$ (333)
12 Months or Longer
Number | investment_security	8	6
Fair Value	$ 14,583	$ 10,434
Gross Unrealized Holding Losses	$ (255)	$ (186)
Total
Number | investment_security	14	21
Fair Value	$ 41,783	$ 36,663
Gross Unrealized Holding Losses	$ (444)	$ (519)
Corporate
Less than 12 Months
Number | investment_security	9	9
Fair Value	$ 51,516	$ 47,805
Gross Unrealized Holding Losses	$ (363)	$ (471)
12 Months or Longer
Number | investment_security	10	8
Fair Value	$ 28,837	$ 19,369
Gross Unrealized Holding Losses	$ (448)	$ (435)
Total
Number | investment_security	19	17
Fair Value	$ 80,353	$ 67,174
Gross Unrealized Holding Losses	$ (811)	$ (906)
Municipal bonds
Less than 12 Months
Number | investment_security	4	60
Fair Value	$ 12,087	$ 45,083
Gross Unrealized Holding Losses	$ (18)	$ (369)
12 Months or Longer
Number | investment_security	58	102
Fair Value	$ 39,763	$ 69,693
Gross Unrealized Holding Losses	$ (649)	$ (1,856)
Total
Number | investment_security	62	162
Fair Value	$ 51,850	$ 114,776
Gross Unrealized Holding Losses	$ (667)	$ (2,225)
Collateralized mortgage obligation: residential
Less than 12 Months
Number | investment_security	1	1
Fair Value	$ 758	$ 814
Gross Unrealized Holding Losses	$ (1)	$ (1)
12 Months or Longer
Number | investment_security	8	8
Fair Value	$ 17,433	$ 18,104
Gross Unrealized Holding Losses	$ (260)	$ (424)
Total
Number | investment_security	9	9
Fair Value	$ 18,191	$ 18,918
Gross Unrealized Holding Losses	$ (261)	$ (425)
Mortgage-backed securities: residential
Less than 12 Months
Number | investment_security	2	20
Fair Value	$ 21,784	$ 70,839
Gross Unrealized Holding Losses	$ (415)	$ (435)
12 Months or Longer
Number | investment_security	106	120
Fair Value	$ 291,110	$ 324,864
Gross Unrealized Holding Losses	$ (4,903)	$ (9,699)
Total
Number | investment_security	108	140
Fair Value	$ 312,894	$ 395,703
Gross Unrealized Holding Losses	$ (5,318)	$ (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	4	3
Held-to-maturity, 12 months or longer, fair value	$ 17,131	$ 15,741
Held-to-maturity, 12 months or longer, gross unrealized holding losses	$ (380)	$ (605)
Held-to-maturity, number of securities | investment_security	4	6
Held-to-maturity securities, fair value	$ 17,131	$ 26,997
Unrealized Loss	$ (380)	$ (686)

Investment Securities - By Cont

Investment Securities - By Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Amortized Cost
One Year or Less	$ 745
More than One Year to Five Years	44,680
More than Five Years to Ten Years	452,633
More than Ten Years	666,282
Total	1,164,340	$ 1,111,168
Fair Value
One Year or Less	745
More than One Year to Five Years	45,995
More than Five Years to Ten Years	458,165
More than Ten Years	666,505
Total	1,171,410	1,103,222
Amortized Cost
One Year or Less	0
More than One Year to Five Years	923
More than Five Years to Ten Years	0
More than Ten Years	42,971
Amortized Cost	43,894	45,210
Fair Value
One Year or Less	0
More than One Year to Five Years	947
More than Five Years to Ten Years	0
More than Ten Years	43,033
Total	43,980	44,672
Amortized Cost
One Year or Less	745
More than One Year to Five Years	45,603
More than Five Years to Ten Years	452,633
More than Ten Years	709,253
Total	1,208,234
Fair Value
One Year or Less	745
More than One Year to Five Years	46,942
More than Five Years to Ten Years	458,165
More than Ten Years	709,538
Total	1,215,390
U.S. Treasury
Amortized Cost
One Year or Less	495
More than One Year to Five Years	9,917
More than Five Years to Ten Years	49,304
More than Ten Years	0
Total	59,716	59,688
Fair Value
One Year or Less	495
More than One Year to Five Years	10,214
More than Five Years to Ten Years	51,192
More than Ten Years	0
Total	61,901	60,912
Agency
Amortized Cost
One Year or Less	0
More than One Year to Five Years	32,098
More than Five Years to Ten Years	84,589
More than Ten Years	45,258
Total	161,945	128,958
Fair Value
One Year or Less	0
More than One Year to Five Years	33,108
More than Five Years to Ten Years	87,279
More than Ten Years	45,101
Total	165,488	130,070
Corporate
Amortized Cost
One Year or Less	0
More than One Year to Five Years	0
More than Five Years to Ten Years	138,128
More than Ten Years	0
Total	138,128	104,158
Fair Value
One Year or Less	0
More than One Year to Five Years	0
More than Five Years to Ten Years	137,855
More than Ten Years	0
Total	137,855	103,543
Municipal bonds
Amortized Cost
One Year or Less	250
More than One Year to Five Years	2,186
More than Five Years to Ten Years	40,705
More than Ten Years	170,420
Total	213,561	238,914
Fair Value
One Year or Less	250
More than One Year to Five Years	2,202
More than Five Years to Ten Years	40,946
More than Ten Years	173,618
Total	217,016	238,630
Collateralized mortgage obligation: residential
Amortized Cost
One Year or Less	0
More than One Year to Five Years	0
More than Five Years to Ten Years	2,957
More than Ten Years	20,685
Total	23,642	24,699
Fair Value
One Year or Less	0
More than One Year to Five Years	0
More than Five Years to Ten Years	2,916
More than Ten Years	20,535
Total	23,451	24,338
Mortgage-backed securities: residential
Amortized Cost
One Year or Less	0
More than One Year to Five Years	479
More than Five Years to Ten Years	136,950
More than Ten Years	429,919
Total	567,348	554,751
Fair Value
One Year or Less	0
More than One Year to Five Years	471
More than Five Years to Ten Years	137,977
More than Ten Years	427,251
Total	565,699	545,729
Amortized Cost
One Year or Less	0
More than One Year to Five Years	923
More than Five Years to Ten Years	0
More than Ten Years	41,160
Amortized Cost	42,083	43,381
Fair Value
One Year or Less	0
More than One Year to Five Years	947
More than Five Years to Ten Years	0
More than Ten Years	41,222
Total	42,169	$ 42,843
Other
Amortized Cost
One Year or Less	0
More than One Year to Five Years	0
More than Five Years to Ten Years	0
More than Ten Years	1,811
Amortized Cost	1,811
Fair Value
One Year or Less	0
More than One Year to Five Years	0
More than Five Years to Ten Years	0
More than Ten Years	1,811
Total	$ 1,811

Loans Held for Investment - Com

Loans Held for Investment - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Loans Held for Investment
Gross loans held for investment	$ 8,875,050	$ 8,846,286
Deferred loan origination (fees)/costs and (discounts)/premiums, net	(9,195)	(9,468)
Loans held for investment	8,865,855	8,836,818
Allowance for loan losses	(37,856)	(36,072)	$ (30,502)	$ (28,936)
Loans held for investment, net	8,827,999	8,800,746
Loans held for sale, at lower of cost or fair value	11,671	5,719
Unaccreted mark-to-market discount	57,200	61,000
Business loans
Loans Held for Investment
Gross loans held for investment	4,121,699	4,141,362
Business loans | Commercial and industrial
Loans Held for Investment
Gross loans held for investment	1,336,520	1,364,423
Allowance for loan losses	(10,450)	(10,821)	(9,492)	(9,721)
Business loans | Franchise
Loans Held for Investment
Gross loans held for investment	813,057	765,416
Allowance for loan losses	(7,871)	(6,500)	(6,095)	(5,797)
Business loans | Commercial owner occupied
Loans Held for Investment
Gross loans held for investment	1,648,762	1,679,122
Allowance for loan losses	(1,305)	(1,386)	(791)	(767)
Business loans | SBA
Loans Held for Investment
Gross loans held for investment	188,757	193,882
Allowance for loan losses	(5,173)	(4,288)	(2,814)	(2,890)
Business loans | Agribusiness
Loans Held for Investment
Gross loans held for investment	134,603	138,519
Allowance for loan losses	(3,137)	(3,283)	(2,105)	(1,291)
Real estate loans
Loans Held for Investment
Gross loans held for investment	4,668,049	4,615,500
Real estate loans | Commercial non-owner occupied
Loans Held for Investment
Gross loans held for investment	2,124,250	2,003,174
Allowance for loan losses	(1,668)	(1,604)	(1,337)	(1,266)
Real estate loans | Multi-family
Loans Held for Investment
Gross loans held for investment	1,511,942	1,535,289
Allowance for loan losses	(669)	(725)	(592)	(607)
Real estate loans | One-to-four family
Loans Held for Investment
Gross loans held for investment	279,467	356,264
Allowance for loan losses	(758)	(805)	(745)	(803)
Real estate loans | Construction
Loans Held for Investment
Gross loans held for investment	538,197	523,643
Allowance for loan losses	(5,194)	(5,166)	(5,075)	(4,569)
Real estate loans | Farmland
Loans Held for Investment
Gross loans held for investment	167,345	150,502
Allowance for loan losses	(664)	(503)	(234)	(137)
Real estate loans | Land
Loans Held for Investment
Gross loans held for investment	46,848	46,628
Allowance for loan losses	(766)	(772)	(1,172)	(993)
Consumer Loans | Consumer loans
Loans Held for Investment
Gross loans held for investment	85,302	89,424
Allowance for loan losses	$ (201)	$ (219)	$ (50)	$ (95)

Loans Held for Investment - Nar

Loans Held for Investment - Narrative (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2019USD ($)areagrade	Dec. 31, 2018USD ($)
Loans Held for Investment
Servicing rights retained from guaranteed portion of SBA loans sold	$ 8,300,000	$ 8,500,000
Unpaid principal balance for loans and participations serviced for others	676,700,000	635,300,000
Secured loans limit to one borrower	536,200,000
Unsecured loans limit to one borrower	321,700,000
Aggregate outstanding balance of loans to one borrower of secured credit	$ 94,100,000
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	$ 12,858,000	4,857,000
Loans 90 days or more past due and still accruing	162,000	213,000
Investment in TDR	0	0
Consumer mortgage loans collateralized by residential real estate, foreclosure proceedings in process	0	0
Outstanding balance	2,100,000
Purchased credit impaired loans, nonaccrual status	0
SBA
Loans Held for Investment
Unpaid principal balance for loans and participations serviced for others	$ 516,400,000	$ 519,800,000

Loans Held for Investment - Int

Loans Held for Investment - Internal Risk Grading System (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Credit Risk Grades
Gross loans	$ 8,886,721	$ 8,852,005
Pass
Credit Risk Grades
Gross loans	8,818,115	8,764,593
Special Mention
Credit Risk Grades
Gross loans	17,666	25,956
Substandard
Credit Risk Grades
Gross loans	50,940	61,456
Doubtful
Credit Risk Grades
Gross loans	0	0
Business loans | Commercial and industrial
Credit Risk Grades
Gross loans	1,336,520	1,364,461
Business loans | Franchise
Credit Risk Grades
Gross loans	813,057	765,416
Business loans | Commercial owner occupied
Credit Risk Grades
Gross loans	1,648,762	1,679,122
Business loans | SBA
Credit Risk Grades
Gross loans	197,877	198,201
Business loans | Agribusiness
Credit Risk Grades
Gross loans	134,603	138,519
Business loans | Pass | Commercial and industrial
Credit Risk Grades
Gross loans	1,323,301	1,340,322
Business loans | Pass | Franchise
Credit Risk Grades
Gross loans	802,898	760,795
Business loans | Pass | Commercial owner occupied
Credit Risk Grades
Gross loans	1,634,458	1,660,994
Business loans | Pass | SBA
Credit Risk Grades
Gross loans	189,338	189,006
Business loans | Pass | Agribusiness
Credit Risk Grades
Gross loans	120,753	125,355
Business loans | Special Mention | Commercial and industrial
Credit Risk Grades
Gross loans	6,481	12,005
Business loans | Special Mention | Franchise
Credit Risk Grades
Gross loans	4,289	4,431
Business loans | Special Mention | Commercial owner occupied
Credit Risk Grades
Gross loans	948	1,580
Business loans | Special Mention | SBA
Credit Risk Grades
Gross loans	1,174	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	6,738	12,134
Business loans | Substandard | Franchise
Credit Risk Grades
Gross loans	5,870	190
Business loans | Substandard | Commercial owner occupied
Credit Risk Grades
Gross loans	13,356	16,548
Business loans | Substandard | SBA
Credit Risk Grades
Gross loans	7,365	6,906
Business loans | Substandard | Agribusiness
Credit Risk Grades
Gross loans	13,850	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	2,126,801	2,004,536
Real estate loans | Multi-family
Credit Risk Grades
Gross loans	1,511,942	1,535,289
Real estate loans | One-to-four family
Credit Risk Grades
Gross loans	279,467	356,264
Real estate loans | Construction
Credit Risk Grades
Gross loans	538,197	523,643
Real estate loans | Farmland
Credit Risk Grades
Gross loans	167,345	150,502
Real estate loans | Land
Credit Risk Grades
Gross loans	46,848	46,628
Real estate loans | Pass | Commercial non-owner occupied
Credit Risk Grades
Gross loans	2,125,422	1,998,118
Real estate loans | Pass | Multi-family
Credit Risk Grades
Gross loans	1,507,242	1,530,567
Real estate loans | Pass | One-to-four family
Credit Risk Grades
Gross loans	277,450	350,083
Real estate loans | Pass | Construction
Credit Risk Grades
Gross loans	538,197	523,643
Real estate loans | Pass | Farmland
Credit Risk Grades
Gross loans	167,228	150,381
Real estate loans | Pass | Land
Credit Risk Grades
Gross loans	46,653	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	4,039	4,060
Real estate loans | Special Mention | One-to-four family
Credit Risk Grades
Gross loans	601	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	134	132
Real estate loans | Substandard | Commercial non-owner occupied
Credit Risk Grades
Gross loans	1,379	5,687
Real estate loans | Substandard | Multi-family
Credit Risk Grades
Gross loans	661	662
Real estate loans | Substandard | One-to-four family
Credit Risk Grades
Gross loans	1,416	5,453
Real estate loans | Substandard | Construction
Credit Risk Grades
Gross loans	0	0
Real estate loans | Substandard | Farmland
Credit Risk Grades
Gross loans	117	121
Real estate loans | Substandard | Land
Credit Risk Grades
Gross loans	61	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	85,302	89,424
Consumer Loans | Pass | Consumer loans
Credit Risk Grades
Gross loans	85,175	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	127	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	Mar. 31, 2019	Dec. 31, 2018
Other information concerning the credit quality
Gross loans	$ 8,886,721	$ 8,852,005
Non-Accruing	12,858	4,857
Current
Other information concerning the credit quality
Current	8,870,959	8,839,152
30-59
Other information concerning the credit quality
Days Past Due	2,299	7,046
60-89
Other information concerning the credit quality
Days Past Due	1,982	1,242
90
Other information concerning the credit quality
Days Past Due	11,481	4,565
Business loans | Commercial and industrial
Other information concerning the credit quality
Gross loans	1,336,520	1,364,461
Non-Accruing	1,906	931
Business loans | Franchise
Other information concerning the credit quality
Gross loans	813,057	765,416
Non-Accruing	5,870	190
Business loans | Commercial owner occupied
Other information concerning the credit quality
Gross loans	1,648,762	1,679,122
Non-Accruing	564	599
Business loans | SBA
Other information concerning the credit quality
Gross loans	197,877	198,201
Non-Accruing	4,104	2,739
Business loans | Agribusiness
Other information concerning the credit quality
Gross loans	134,603	138,519
Non-Accruing	0	0
Business loans | Current | Commercial and industrial
Other information concerning the credit quality
Current	1,333,664	1,362,017
Business loans | Current | Franchise
Other information concerning the credit quality
Current	807,187	759,546
Business loans | Current | Commercial owner occupied
Other information concerning the credit quality
Current	1,648,036	1,677,967
Business loans | Current | SBA
Other information concerning the credit quality
Current	192,818	195,051
Business loans | Current | Agribusiness
Other information concerning the credit quality
Current	134,593	138,519
Business loans | 30-59 | Commercial and industrial
Other information concerning the credit quality
Days Past Due	524	309
Business loans | 30-59 | Franchise
Other information concerning the credit quality
Days Past Due	0	5,680
Business loans | 30-59 | Commercial owner occupied
Other information concerning the credit quality
Days Past Due	0	343
Business loans | 30-59 | SBA
Other information concerning the credit quality
Days Past Due	965	524
Business loans | 30-59 | Agribusiness
Other information concerning the credit quality
Days Past Due	10	0
Business loans | 60-89 | Commercial and industrial
Other information concerning the credit quality
Days Past Due	1,439	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	103	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	893	931
Business loans | 90 | Franchise
Other information concerning the credit quality
Days Past Due	5,870	190
Business loans | 90 | Commercial owner occupied
Other information concerning the credit quality
Days Past Due	726	812
Business loans | 90 | SBA
Other information concerning the credit quality
Days Past Due	3,991	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
Gross loans	2,126,801	2,004,536
Non-Accruing	0	0
Real estate loans | Multi-family
Other information concerning the credit quality
Gross loans	1,511,942	1,535,289
Non-Accruing	0	0
Real estate loans | One-to-four family
Other information concerning the credit quality
Gross loans	279,467	356,264
Non-Accruing	388	398
Real estate loans | Construction
Other information concerning the credit quality
Gross loans	538,197	523,643
Non-Accruing	0	0
Real estate loans | Farmland
Other information concerning the credit quality
Gross loans	167,345	150,502
Non-Accruing	0	0
Real estate loans | Land
Other information concerning the credit quality
Gross loans	46,848	46,628
Non-Accruing	0	0
Real estate loans | Current | Commercial non-owner occupied
Other information concerning the credit quality
Current	2,126,070	2,004,536
Real estate loans | Current | Multi-family
Other information concerning the credit quality
Current	1,511,502	1,535,275
Real estate loans | Current | One-to-four family
Other information concerning the credit quality
Current	279,397	356,219
Real estate loans | Current | Construction
Other information concerning the credit quality
Current	538,197	523,643
Real estate loans | Current | Farmland
Other information concerning the credit quality
Current	167,345	150,502
Real estate loans | Current | Land
Other information concerning the credit quality
Current	46,848	46,628
Real estate loans | 30-59 | Commercial non-owner occupied
Other information concerning the credit quality
Days Past Due	731	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	69	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	440	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	0	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	1	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
Gross loans	85,302	89,424
Non-Accruing	26	0
Consumer Loans | Current | Consumer loans
Other information concerning the credit quality
Current	85,302	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 ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Impaired Loans
Unpaid Principal Balance	$ 29,426	$ 17,440
Total impaired loans	20,358	12,458
With Specific Allowance	8,741	1,038
Without Specific Allowance	11,617	11,420
Specific Allowance for Impaired Loans	3,212	584	$ 0
Average Recorded Investment	17,786	8,545	7,844
Interest Income Recognized	89	36	0
Business loans | Commercial and industrial
Impaired Loans
Unpaid Principal Balance	1,978	1,071
Total impaired loans	1,906	1,023
With Specific Allowance	190	550
Without Specific Allowance	1,717	473
Specific Allowance for Impaired Loans	143	118	0
Average Recorded Investment	2,003	1,210	1,181
Interest Income Recognized	0	1	0
Business loans | Franchise
Impaired Loans
Unpaid Principal Balance	5,870	190
Total impaired loans	5,870	189
With Specific Allowance	5,680	0
Without Specific Allowance	190	189
Specific Allowance for Impaired Loans	1,569	0	0
Average Recorded Investment	3,976	196	0
Interest Income Recognized	0	0	0
Business loans | Commercial owner occupied
Impaired Loans
Unpaid Principal Balance	564	628
Total impaired loans	564	599
With Specific Allowance	0	0
Without Specific Allowance	564	599
Specific Allowance for Impaired Loans	0	0	0
Average Recorded Investment	576	406	3,475
Interest Income Recognized	0	0	0
Business loans | SBA
Impaired Loans
Unpaid Principal Balance	13,059	7,598
Total impaired loans	4,104	2,739
With Specific Allowance	2,871	488
Without Specific Allowance	1,232	2,251
Specific Allowance for Impaired Loans	1,500	466	0
Average Recorded Investment	3,279	2,741	1,241
Interest Income Recognized		0	0
Business loans | Agribusiness
Impaired Loans
Unpaid Principal Balance	7,500	7,500
Total impaired loans	7,500	7,500
With Specific Allowance	0	0
Without Specific Allowance	7,500	7,500
Specific Allowance for Impaired Loans	0	0	0
Average Recorded Investment	7,500	2,500	0
Interest Income Recognized	89	35	0
Real estate loans | Commercial non-owner occupied
Impaired Loans
Specific Allowance for Impaired Loans	0		0
Average Recorded Investment	0	430	0
Interest Income Recognized	0	0	0
Real estate loans | Multi-family
Impaired Loans
Specific Allowance for Impaired Loans	0		0
Average Recorded Investment	0	0	821
Interest Income Recognized	0	0	0
Real estate loans | One-to-four family
Impaired Loans
Unpaid Principal Balance	428	453
Total impaired loans	388	408
With Specific Allowance	0	0
Without Specific Allowance	388	408
Specific Allowance for Impaired Loans	0	0	0
Average Recorded Investment	395	1,053	1,024
Interest Income Recognized	0	0	0
Real estate loans | Land
Impaired Loans
Specific Allowance for Impaired Loans	0		0
Average Recorded Investment	0	2	8
Interest Income Recognized	0	0	0
Consumer Loans | Consumer loans
Impaired Loans
Unpaid Principal Balance	27
Total impaired loans	26
With Specific Allowance	0
Without Specific Allowance	26
Specific Allowance for Impaired Loans	0		0
Average Recorded Investment	57	7	94
Interest Income Recognized	$ 0	$ 0	$ 0

Loans Held for Investment - C_3

Loans Held for Investment - Components of Impaired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Receivables [Abstract]
Nonaccrual loans	$ 12,858	$ 4,857
Accruing loans	7,500	7,601
Total impaired loans	$ 20,358	$ 12,458

Loans Held for Investment - Pur

Loans Held for Investment - Purchased Credit Impaired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Loans Held for Investment
Unpaid Principal Balance	$ 29,426	$ 17,440
Business loans | Commercial and industrial
Loans Held for Investment
Unpaid Principal Balance	1,978	1,071
Business loans | Commercial owner occupied
Loans Held for Investment
Unpaid Principal Balance	564	628
Business loans | SBA
Loans Held for Investment
Unpaid Principal Balance	13,059	7,598
Acquired Banks
Loans Held for Investment
Unpaid Principal Balance	2,090	2,182
Acquired Banks | Business loans | Commercial and industrial
Loans Held for Investment
Unpaid Principal Balance	0	10
Acquired Banks | Business loans | Commercial owner occupied
Loans Held for Investment
Unpaid Principal Balance	582	632
Acquired Banks | Business loans | SBA
Loans Held for Investment
Unpaid Principal Balance	1,228	1,265
Acquired Banks | Real estate loans | Commercial non-owner occupied
Loans Held for Investment
Unpaid Principal Balance	$ 280	$ 275

Loans Held for Investment - Acc

Loans Held for Investment - Accretable Yield Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Accretable yield on purchased credit impaired
Balance at the beginning of period	$ 411	$ 1,988	$ 3,019
Additions	0	0	0
Accretion	(79)	(262)	(236)
Payoffs	0	(47)	(1,850)
Sales	0	(1,293)	0
Reclassification from nonaccretable difference	0	25	776
Balance at the end of period	$ 332	$ 411	$ 1,709

Allowance for Loan Losses (Deta

Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 36,072	$ 28,936
Charge-offs	(307)	(746)
Recoveries	79	59
Provisions for (reduction in) loan losses	2,012	2,253
Balance, at the end of the period	37,856	30,502
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	3,212	0	$ 584
Amount of allowance attributed to: General portfolio allocation	34,644	30,502
Loans individually evaluated for impairment	$ 20,358	$ 8,149
Specific reserves to total loans individually evaluated for impairment	15.78%	0.00%
Loans collectively evaluated for impairment	$ 8,854,692	$ 6,236,603
General reserves to total loans collectively evaluated for impairment	0.39%	0.49%
Gross loans, excluding loan receivable held for sale	$ 8,875,050	$ 6,244,752
Total allowance to gross loans	0.43%	0.49%
Business loans | Commercial and industrial
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 10,821	$ 9,721
Charge-offs	(302)	(665)
Recoveries	67	25
Provisions for (reduction in) loan losses	(136)	411
Balance, at the end of the period	10,450	9,492
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	143	0	118
Amount of allowance attributed to: General portfolio allocation	10,307	9,492
Loans individually evaluated for impairment	$ 1,906	$ 1,067
Specific reserves to total loans individually evaluated for impairment	7.50%	0.00%
Loans collectively evaluated for impairment	$ 1,334,614	$ 1,061,318
General reserves to total loans collectively evaluated for impairment	0.77%	0.89%
Gross loans, excluding loan receivable held for sale	$ 1,336,520	$ 1,062,385
Total allowance to gross loans	0.78%	0.89%
Business loans | Franchise
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 6,500	$ 5,797
Charge-offs	0	0
Recoveries	0	0
Provisions for (reduction in) loan losses	1,371	298
Balance, at the end of the period	7,871	6,095
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	1,569	0	0
Amount of allowance attributed to: General portfolio allocation	6,302	6,095
Loans individually evaluated for impairment	$ 5,870	$ 0
Specific reserves to total loans individually evaluated for impairment	26.73%	0.00%
Loans collectively evaluated for impairment	$ 807,187	$ 692,846
General reserves to total loans collectively evaluated for impairment	0.78%	0.88%
Gross loans, excluding loan receivable held for sale	$ 813,057	$ 692,846
Total allowance to gross loans	0.97%	0.88%
Business loans | Commercial owner occupied
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 1,386	$ 767
Charge-offs	0	0
Recoveries	8	8
Provisions for (reduction in) loan losses	(89)	16
Balance, at the end of the period	1,305	791
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0	0	0
Amount of allowance attributed to: General portfolio allocation	1,305	791
Loans individually evaluated for impairment	$ 564	$ 3,475
Specific reserves to total loans individually evaluated for impairment	0.00%	0.00%
Loans collectively evaluated for impairment	$ 1,648,198	$ 1,265,394
General reserves to total loans collectively evaluated for impairment	0.08%	0.06%
Gross loans, excluding loan receivable held for sale	$ 1,648,762	$ 1,268,869
Total allowance to gross loans	0.08%	0.06%
Business loans | SBA
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 4,288	$ 2,890
Charge-offs	0	(29)
Recoveries	3	26
Provisions for (reduction in) loan losses	882	(73)
Balance, at the end of the period	5,173	2,814
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	1,500	0	466
Amount of allowance attributed to: General portfolio allocation	3,673	2,814
Loans individually evaluated for impairment	$ 4,104	$ 1,218
Specific reserves to total loans individually evaluated for impairment	36.55%	0.00%
Loans collectively evaluated for impairment	$ 184,653	$ 181,408
General reserves to total loans collectively evaluated for impairment	1.99%	1.55%
Gross loans, excluding loan receivable held for sale	$ 188,757	$ 182,626
Total allowance to gross loans	2.74%	1.54%
Business loans | Agribusiness
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 3,283	$ 1,291
Charge-offs	0	0
Recoveries	0	0
Provisions for (reduction in) loan losses	(146)	814
Balance, at the end of the period	3,137	2,105
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0	0	0
Amount of allowance attributed to: General portfolio allocation	3,137	2,105
Loans individually evaluated for impairment	$ 7,500	$ 0
Specific reserves to total loans individually evaluated for impairment	0.00%	0.00%
Loans collectively evaluated for impairment	$ 127,103	$ 149,256
General reserves to total loans collectively evaluated for impairment	2.47%	1.41%
Gross loans, excluding loan receivable held for sale	$ 134,603	$ 149,256
Total allowance to gross loans	2.33%	1.41%
Real estate loans | Commercial non-owner occupied
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 1,604	$ 1,266
Charge-offs	0	0
Recoveries	0	0
Provisions for (reduction in) loan losses	64	71
Balance, at the end of the period	1,668	1,337
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0	0
Amount of allowance attributed to: General portfolio allocation	1,668	1,337
Loans individually evaluated for impairment	$ 0	$ 0
Specific reserves to total loans individually evaluated for impairment	0.00%	0.00%
Loans collectively evaluated for impairment	$ 2,124,250	$ 1,227,693
General reserves to total loans collectively evaluated for impairment	0.08%	0.11%
Gross loans, excluding loan receivable held for sale	$ 2,124,250	$ 1,227,693
Total allowance to gross loans	0.08%	0.11%
Real estate loans | Multi-family
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 725	$ 607
Charge-offs	0	0
Recoveries	0	0
Provisions for (reduction in) loan losses	(56)	(15)
Balance, at the end of the period	669	592
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0	0
Amount of allowance attributed to: General portfolio allocation	669	592
Loans individually evaluated for impairment	$ 0	$ 1,231
Specific reserves to total loans individually evaluated for impairment	0.00%	0.00%
Loans collectively evaluated for impairment	$ 1,511,942	$ 816,732
General reserves to total loans collectively evaluated for impairment	0.04%	0.07%
Gross loans, excluding loan receivable held for sale	$ 1,511,942	$ 817,963
Total allowance to gross loans	0.04%	0.07%
Real estate loans | One-to-four family
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 805	$ 803
Charge-offs	0	0
Recoveries	0	0
Provisions for (reduction in) loan losses	(47)	(58)
Balance, at the end of the period	758	745
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0	0	$ 0
Amount of allowance attributed to: General portfolio allocation	758	745
Loans individually evaluated for impairment	$ 388	$ 1,134
Specific reserves to total loans individually evaluated for impairment	0.00%	0.00%
Loans collectively evaluated for impairment	$ 279,079	$ 265,190
General reserves to total loans collectively evaluated for impairment	0.27%	0.28%
Gross loans, excluding loan receivable held for sale	$ 279,467	$ 266,324
Total allowance to gross loans	0.27%	0.28%
Real estate loans | Construction
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 5,166	$ 4,569
Charge-offs	0	0
Recoveries	0	0
Provisions for (reduction in) loan losses	28	506
Balance, at the end of the period	5,194	5,075
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0	0
Amount of allowance attributed to: General portfolio allocation	5,194	5,075
Loans individually evaluated for impairment	$ 0	$ 0
Specific reserves to total loans individually evaluated for impairment	0.00%	0.00%
Loans collectively evaluated for impairment	$ 538,197	$ 319,610
General reserves to total loans collectively evaluated for impairment	0.97%	1.59%
Gross loans, excluding loan receivable held for sale	$ 538,197	$ 319,610
Total allowance to gross loans	0.97%	1.59%
Real estate loans | Farmland
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 503	$ 137
Charge-offs	0	0
Recoveries	0	0
Provisions for (reduction in) loan losses	161	97
Balance, at the end of the period	664	234
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0	0
Amount of allowance attributed to: General portfolio allocation	664	234
Loans individually evaluated for impairment	$ 0	$ 0
Specific reserves to total loans individually evaluated for impairment	0.00%	0.00%
Loans collectively evaluated for impairment	$ 167,345	$ 136,522
General reserves to total loans collectively evaluated for impairment	0.40%	0.17%
Gross loans, excluding loan receivable held for sale	$ 167,345	$ 136,522
Total allowance to gross loans	0.40%	0.17%
Real estate loans | Land
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 772	$ 993
Charge-offs	0	0
Recoveries	0	0
Provisions for (reduction in) loan losses	(6)	179
Balance, at the end of the period	766	1,172
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0	0
Amount of allowance attributed to: General portfolio allocation	766	1,172
Loans individually evaluated for impairment	$ 0	$ 8
Specific reserves to total loans individually evaluated for impairment	0.00%	0.00%
Loans collectively evaluated for impairment	$ 46,848	$ 34,444
General reserves to total loans collectively evaluated for impairment	1.64%	3.40%
Gross loans, excluding loan receivable held for sale	$ 46,848	$ 34,452
Total allowance to gross loans	1.64%	3.40%
Consumer Loans | Consumer loans
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period	$ 219	$ 95
Charge-offs	(5)	(52)
Recoveries	1	0
Provisions for (reduction in) loan losses	(14)	7
Balance, at the end of the period	201	50
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	0	0
Amount of allowance attributed to: General portfolio allocation	201	50
Loans individually evaluated for impairment	$ 26	$ 16
Specific reserves to total loans individually evaluated for impairment	0.00%	0.00%
Loans collectively evaluated for impairment	$ 85,276	$ 86,190
General reserves to total loans collectively evaluated for impairment	0.24%	0.06%
Gross loans, excluding loan receivable held for sale	$ 85,302	$ 86,206
Total allowance to gross loans	0.24%	0.06%
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 (in years)	1 year
Period considered for comparison of entity's allowance for loan losses factor (in years)	1 year 7 months 6 days

Subordinated Debentures (Detail

Subordinated Debentures (Details)	Nov. 01, 2017USD ($)note	Aug. 31, 2014USD ($)	Mar. 31, 2004USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jul. 01, 2018USD ($)	Apr. 01, 2017USD ($)
Subordinated Debentures
Subordinated debentures				$ 110,381,000	$ 110,313,000
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%
Contribution of net proceeds from the Private Placement to the Bank to support general corporate purposes		$ 50,000,000
Subordinated debentures				59,300,000
Unamortized debt issuance cost				$ 658,000
Subordinated Debentures
Subordinated Debentures
Effective rate (as a percent)				5.54%
Subordinated Debentures | Mission Community Capital Trust I
Subordinated Debentures
Effective rate (as a percent)				5.74%
Floating rate junior subordinated debt				$ 2,800,000			$ 3,100,000
Purchase accounting fair value adjustments				$ 301,000
Subordinated Debentures | Santa Lucia Bancorp (CA) Capital Trust
Subordinated Debentures
Effective rate (as a percent)				4.27%
Floating rate junior subordinated debt				$ 3,800,000			5,200,000
Purchase accounting fair value adjustments				$ 1,300,000
Subordinated Debentures | Heritage Oaks Bancorp
Subordinated Debentures
Effective rate (as a percent)				4.52%
Floating rate junior subordinated debt				$ 4,000,000			$ 5,200,000
Purchase accounting fair value adjustments				1,200,000
Subordinated Debentures | Plaza Bancorp
Subordinated Debentures
Floating rate junior subordinated debt				25,200,000
Purchase accounting fair value adjustments				$ 151,000
Subordinated Debentures | Grandpoint Capital, Inc.
Subordinated Debentures
Effective rate (as a percent)				5.56%
Floating rate junior subordinated debt				$ 4,900,000
Purchase accounting fair value adjustments				$ (221,000)
Debt assumed in acquisition						$ 5,200,000
Subordinated Debentures | LIBOR
Subordinated Debentures
Floating interest rate, basis points added to base rate (as a percent)				2.75%
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 | 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 | 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
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
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Basic
Net income	$ 38,718	$ 39,643	$ 28,002
Less: Earnings allocated to participating securities	(347)	0	0
Net income allocated to common stockholders	$ 38,371	$ 39,643	$ 28,002
Weighted average common shares outstanding (in shares)	61,987,605	61,917,184	45,893,496
Basic earnings per share (in dollars per share)	$ 0.62	$ 0.64	$ 0.61
Diluted
Net income allocated to common stockholders	$ 38,371	$ 39,643	$ 28,002
Weighted average common shares outstanding (in shares)	61,987,605	61,917,184	45,893,496
Diluted effect of share-based compensation (in shares)	298,178	539,916	758,563
Weighted average diluted common shares (in shares)	62,285,783	62,457,100	46,652,059
Diluted earnings per share (in dollars per share)	$ 0.62	$ 0.63	$ 0.60

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)loan	Dec. 31, 2018USD ($)	Mar. 31, 2018USD ($)
Fair Value Disclosures [Abstract]
Specific reserve recorded on loan	$ 3,212	$ 584	$ 0
Number of loans with a specific reserve | loan	10
Principal balance of loan with specific reserve	$ 8,741	$ 1,038

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Hierarchy Table - Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial assets
Investment securities available-for-sale, at fair value	$ 1,171,410	$ 1,103,222
U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	61,901	60,912
Agency
Financial assets
Investment securities available-for-sale, at fair value	165,488	130,070
Corporate
Financial assets
Investment securities available-for-sale, at fair value	137,855	103,543
Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	217,016	238,630
Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	23,451	24,338
Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	565,699	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	1,171,410	1,103,222
Derivative assets	1,068	1,681
Financial liabilities
Derivative liabilities	1,068	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 basis
Financial assets
Investment securities available-for-sale, at fair value	1,171,410	1,103,222
Derivative assets	1,068	1,681
Financial liabilities
Derivative liabilities	1,068	1,681
Recurring basis | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	61,901	60,912
Recurring basis | Agency
Financial assets
Investment securities available-for-sale, at fair value	165,488	130,070
Recurring basis | Corporate
Financial assets
Investment securities available-for-sale, at fair value	137,855	103,543
Recurring basis | Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	217,016	238,630
Recurring basis | Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	23,451	24,338
Recurring basis | Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	565,699	545,729
Recurring basis | 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 basis | Level 1 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 1 | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 1 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 1 | Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 1 | Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 1 | Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 2
Financial assets
Investment securities available-for-sale, at fair value	1,171,410	1,103,222
Derivative assets	1,068	1,681
Financial liabilities
Derivative liabilities	1,068	1,681
Recurring basis | Level 2 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	61,901	60,912
Recurring basis | Level 2 | Agency
Financial assets
Investment securities available-for-sale, at fair value	165,488	130,070
Recurring basis | Level 2 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	137,855	103,543
Recurring basis | Level 2 | Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	217,016	238,630
Recurring basis | Level 2 | Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	23,451	24,338
Recurring basis | Level 2 | Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	565,699	545,729
Recurring basis | 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 basis | Level 3 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 3 | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 3 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 3 | Municipal bonds
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 3 | Collateralized mortgage obligation: residential
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring basis | Level 3 | Mortgage-backed securities: residential
Financial assets
Investment securities available-for-sale, at fair value	$ 0	$ 0

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Fair Value Estimates (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets:
Investments held-to-maturity	$ 43,980	$ 44,672
Investment securities available-for-sale, at fair value	1,171,410	1,103,222
Accrued interest receivable	40,302	37,837
Level 1
Assets:
Cash and cash equivalents	178,382	203,406
Investments held-to-maturity	0	0
Investment securities available-for-sale, at fair value	0	0
Loans held for sale	0	0
Loans held for investment, net	0	0
Derivative assets	0	0
Accrued interest receivable	40,302	37,837
Liabilities:
Deposit accounts	7,123,041	7,247,673
FHLB advances	0	0
Other borrowings		0
Subordinated debentures	0	0
Derivative liabilities	0	0
Accrued interest payable	2,803	3,255
Level 1 | Interest-bearing time deposits with financial institutions
Assets:
Cash and cash equivalents	5,896	6,143
Level 2
Assets:
Cash and cash equivalents	0	0
Investments held-to-maturity	43,980	44,672
Investment securities available-for-sale, at fair value	1,171,410	1,103,222
Loans held for sale	12,469	6,072
Loans held for investment, net	0	0
Derivative assets	1,068	1,681
Accrued interest receivable	0	0
Liabilities:
Deposit accounts	1,587,744	1,403,524
FHLB advances	610,589	666,864
Other borrowings		75
Subordinated debentures	118,827	115,613
Derivative liabilities	1,068	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, at fair value	0	0
Loans held for sale	0	0
Loans held for investment, net	8,779,827	8,697,594
Derivative assets	0	0
Accrued interest receivable	0	0
Liabilities:
Deposit accounts	0	0
FHLB advances	0	0
Other borrowings		0
Subordinated debentures	0	0
Derivative liabilities	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	178,382	203,406
Investments held-to-maturity	43,894	45,210
Investment securities available-for-sale, at fair value	1,171,410	1,103,222
Loans held for sale	11,671	5,719
Loans held for investment, net	8,865,855	8,836,818
Derivative assets	1,068	1,929
Accrued interest receivable	40,302	37,837
Liabilities:
Deposit accounts	8,715,175	8,658,351
FHLB advances	609,591	667,606
Other borrowings		75
Subordinated debentures	110,381	110,313
Derivative liabilities	1,068	1,929
Accrued interest payable	2,803	3,255
Carrying Amount | Interest-bearing time deposits with financial institutions
Assets:
Cash and cash equivalents	5,896	6,143
Estimated Fair Value
Assets:
Cash and cash equivalents	178,382	203,406
Investments held-to-maturity	43,980	44,672
Investment securities available-for-sale, at fair value	1,171,410	1,103,222
Loans held for sale	12,469	6,072
Loans held for investment, net	8,779,827	8,697,594
Derivative assets	1,068	1,681
Accrued interest receivable	40,302	37,837
Liabilities:
Deposit accounts	8,710,785	8,651,197
FHLB advances	610,589	666,864
Other borrowings		75
Subordinated debentures	118,827	115,613
Derivative liabilities	1,068	1,681
Accrued interest payable	2,803	3,255
Estimated Fair Value | Interest-bearing time deposits with financial institutions
Assets:
Cash and cash equivalents	$ 5,896	$ 6,143

Derivative Instruments (Details

Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative assets, fair value	$ 1,068	$ 1,681
Derivative liabilities, fair value	1,068	1,681
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional	57,023	57,502
Derivative assets, fair value	1,068	1,681
Derivative liabilities, fair value	1,068	1,681
Not Designated as Hedging Instrument | Interest rate swap contracts
Derivative [Line Items]
Notional	57,023	57,502
Derivative assets, fair value	1,068	1,681
Derivative liabilities, fair value	$ 1,068	$ 1,681

Balance Sheet Offsetting (Detai

Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial assets:
Gross Amounts Recognized	$ 1,697	$ 2,177
Gross Amounts Offset in the Consolidated Balance Sheets	(629)	(496)
Net Amounts Presented in the Consolidated Balance Sheets	1,068	1,681
Financial Instruments	0	0
Cash Collateral	0	0
Net Amount	1,068	1,681
Financial liabilities:
Gross Amounts Recognized	1,068	1,681
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Net Amounts Presented in the Consolidated Balance Sheets	1,068	1,681
Financial Instruments	0	0
Cash Collateral	0	0
Net Amount	1,068	1,681
Not Designated as Hedging Instrument
Financial assets:
Gross Amounts Recognized	1,697	2,177
Gross Amounts Offset in the Consolidated Balance Sheets	(629)	(496)
Net Amounts Presented in the Consolidated Balance Sheets	1,068	1,681
Financial Instruments	0	0
Cash Collateral	0	0
Net Amount	1,068	1,681
Financial liabilities:
Gross Amounts Recognized	1,068	1,681
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Net Amounts Presented in the Consolidated Balance Sheets	1,068	1,681
Financial Instruments	0	0
Cash Collateral	0	0
Net Amount	$ 1,068	$ 1,681

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Expense associated with the Company's leases	$ 3,400
Operating lease expense	2,700
Short-term lease expense	$ 691

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating lease right of use assets	$ 41,800
Operating lease liabilities	43,892
Operating cash flows from operating leases	$ 2,545

Leases - Schedule of Minimum Co

Leases - Schedule of Minimum Contractual Lease Payments and Other Information (Details) $ in Thousands	Mar. 31, 2019USD ($)
Operating leases
2019	$ 10,004
2020	8,550
2021	8,865
2022	8,511
2023	7,021
Thereafter	9,689
Total	52,640
Short-term leases
2019	958
2020	0
2021	0
2022	0
2023	0
Thereafter	0
Total	958
Total contractual base rents
2019	10,962
2020	8,550
2021	8,865
2022	8,511
2023	7,021
Thereafter	9,689
Total	53,598
Total liability to make lease payments	43,892
Difference in undiscounted and discounted future lease payments	$ 9,706
Weighted average discount rate	6.34%
Weighted average remaining lease term (years)	5 years 7 months 6 days

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
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Interest income:
Loans	$ 121,476	$ 126,341	$ 84,173
Investment securities and other interest-earning assets	9,767	9,680	6,654
Total interest income	131,243	136,021	90,827
Noninterest income:
Loan servicing fees	398	408	345
Earnings on bank-owned life insurance	910	929	611
Net gain from sales of loans	1,729	1,929	2,958
Net gain from sales of investment securities	427	0	6
Other income	1,460	944	1,414
Total noninterest income	7,681	6,970	7,666
Service charges on deposit accounts
Noninterest income:
Noninterest income	1,330	1,351	1,150
Other service fee income
Noninterest income:
Noninterest income	356	270	146
Debit card interchange fee income
Noninterest income:
Noninterest income	1,071	1,139	1,036
Within Scope
Noninterest income:
Other income	192	1,158	237
Total noninterest income	2,949	3,918	2,569
Total revenues	2,949	3,918	2,569
Within Scope | Service charges on deposit accounts
Noninterest income:
Noninterest income	1,330	1,351	1,150
Within Scope | Other service fee income
Noninterest income:
Noninterest income	356	270	146
Within Scope | Debit card interchange fee income
Noninterest income:
Noninterest income	1,071	1,139	1,036
Out of Scope
Interest income:
Loans	121,476	126,341	84,173
Investment securities and other interest-earning assets	9,767	9,680	6,654
Total interest income	131,243	136,021	90,827
Noninterest income:
Loan servicing fees	398	408	345
Earnings on bank-owned life insurance	910	929	611
Net gain from sales of loans	1,729	1,929	2,958
Net gain from sales of investment securities	427	0	6
Other income	1,268	(214)	1,177
Total noninterest income	4,732	3,052	5,097
Total revenues	$ 135,975	$ 139,073	$ 95,924

Subsequent Events (Details)

Subsequent Events (Details) - USD ($)	May 08, 2019	Apr. 19, 2019	Apr. 30, 2019	Mar. 31, 2019
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share)				$ 0.22
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share)		$ 0.22
Total shares repurchased (in shares)			92,959
Average price (usd per share)			$ 29.42
Total cost of repurchased shares			$ 2,700,000
Subsequent Event | Subordinated Notes, 4.875%, Due May 15, 2029 | Subordinated Debentures
Subsequent Event [Line Items]
Debt issued	$ 125,000,000
Fixed interest rate (as a percent)	4.875%
Percentage of aggregate principal amount	100.00%
Proceeds from offering	$ 122,400,000