TriState Capital (TSC) 10-Q 6 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 31, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	TriState Capital Holdings, Inc.
Entity Central Index Key	1,380,846
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Amendment Flag	false
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Document Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		28,949,383

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Cash	$ 382	$ 380
Interest-earning deposits with other institutions	157,717	140,975
Federal funds sold	6,268	14,798
Cash and cash equivalents	164,367	156,153
Debt securities available-for-sale, at fair value (cost: $187,430 and $138,147, respectively)	186,467	138,850
Debt securities held-to-maturity, at cost (fair value: $77,283 and $60,141, respectively)	77,098	59,275
Equity securities, at fair value (cost: $9,040 and $8,910, respectively)	8,630	8,635
Federal Home Loan Bank stock	16,479	13,792
Total investment securities	288,674	220,552
Loans held-for-investment	4,552,928	4,184,244
Allowance for loan losses	(15,321)	(14,417)
Loans held-for-investment, net	4,537,607	4,169,827
Accrued interest receivable	16,187	13,519
Investment management fees receivable, net	7,835	7,720
Goodwill	41,659	38,724
Intangible assets, net of accumulated amortization of $7,424 and $6,461, respectively	27,208	26,634
Office properties and equipment, net of accumulated depreciation of $11,609 and $10,844, respectively	4,875	4,885
Bank owned life insurance	67,451	66,593
Prepaid expenses and other assets	78,073	73,290
Total assets	5,233,936	4,777,897
Liabilities:
Deposits	4,441,202	3,987,611
Borrowings, net	264,814	335,913
Accrued interest payable on deposits and borrowings	2,433	2,499
Deferred tax liability, net	4,691	4,152
Acquisition earn out liability	3,138	0
Other accrued expenses and other liabilities	63,764	58,651
Total liabilities	4,780,042	4,388,826
Shareholders’ Equity:
Preferred stock, no par value; Shares authorized - 150,000; Series A shares issued and outstanding - 40,250 and 0, respectively	38,432	0
Common stock, no par value; Shares authorized - 45,000,000; Shares issued - 30,796,284 and 30,342,471, respectively; Shares outstanding - 28,947,883 and 28,591,101, respectively	291,608	289,507
Additional paid-in capital	13,038	10,290
Retained earnings	135,937	111,732
Accumulated other comprehensive income, net	1,045	1,246
Treasury stock (1,848,401 and 1,751,370 shares, respectively)	(26,166)	(23,704)
Total shareholders’ equity	453,894	389,071
Total liabilities and shareholders’ equity	$ 5,233,936	$ 4,777,897

Unaudited Condensed Consolidat3

Unaudited Condensed Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Debt securities available-for-sale (cost)	$ 187,430	$ 138,147
Debt securities held-to-maturity (fair value)	77,283	60,141
Equity securities (cost)	9,040	8,910
Accumulated amortization	7,424	6,461
Accumulated depreciation	$ 11,609	$ 10,844
Shares Authorized, Preferred Stock (in shares)	150,000	150,000
Shares Issued, Preferred Stock (in shares)	40,250	0
Shares Outstanding, Preferred Stock (in shares)	40,250	0
Shares Authorized, Common Stock (in shares)	45,000,000	45,000,000
Shares Issued, Common Stock (in shares)	30,796,284	30,342,471
Shares Outstanding, Common Stock (in shares)	28,947,883	28,591,101
Treasury Stock (in shares)	1,848,401	1,751,370

Unaudited Condensed Consolidat4

Unaudited Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest income:
Loans	$ 44,614	$ 30,242	$ 83,641	$ 57,261
Investments	2,300	1,535	4,084	3,005
Interest-earning deposits	870	338	1,475	586
Total interest income	47,784	32,115	89,200	60,852
Interest expense:
Deposits	16,696	8,496	30,097	15,209
Borrowings	2,297	1,586	4,050	2,694
Total interest expense	18,993	10,082	34,147	17,903
Net interest income	28,791	22,033	55,053	42,949
Provision for loan losses	415	516	610	759
Net interest income after provision for loan losses	28,376	21,517	54,443	42,190
Non-interest income:
Net gain on the sale and call of debt securities	1	241	6	239
Other income	407	617	869	1,087
Total non-interest income	12,502	11,712	23,591	23,121
Non-interest expense:
Compensation and employee benefits	15,742	14,222	31,210	28,115
Premises and occupancy costs	1,264	1,240	2,554	2,506
Professional fees	1,554	823	2,649	1,674
FDIC insurance expense	1,134	1,000	2,280	1,953
General insurance expense	242	259	489	560
State capital shares tax	484	398	911	750
Travel and entertainment expense	1,006	747	1,652	1,362
Intangible amortization expense	502	462	963	925
Other operating expenses	3,390	2,633	6,460	5,097
Total non-interest expense	25,318	21,784	49,168	42,942
Income before tax	15,560	11,445	28,866	22,369
Income tax expense	968	3,024	3,873	6,456
Net income	14,592	8,421	24,993	15,913
Preferred stock dividends on Series A	762	0	762	0
Net income available to common shareholders	$ 13,830	$ 8,421	$ 24,231	$ 15,913
Earnings per common share:
Basic (in usd per share)	$ 0.50	$ 0.31	$ 0.88	$ 0.58
Diluted (in usd per share)	$ 0.48	$ 0.29	$ 0.84	$ 0.55
Investment management fees
Non-interest income:
Total non-interest income	$ 9,686	$ 9,130	$ 18,594	$ 18,470
Service charges on deposits
Non-interest income:
Total non-interest income	140	97	274	191
Swap fees
Non-interest income:
Total non-interest income	1,937	1,218	3,185	2,317
Commitment and other loan fees
Non-interest income:
Total non-interest income	$ 331	$ 409	$ 663	$ 817

Unaudited Condensed Consolidat5

Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 14,592	$ 8,421	$ 24,993	$ 15,913
Other comprehensive income (loss):
Unrealized holding gains (losses) on investment securities, net of tax expense (benefit) of $(174), $394, $(396) and $509	(567)	707	(1,325)	890
Reclassification adjustment for gains included in net income on investment securities, net of tax expense of $0, $(86), $(1) and $(85)	(1)	(155)	(5)	(154)
Unrealized holding gains (losses) on derivatives, net of tax expense (benefit) of $79, $(87), $299 and $(56)	261	(155)	983	(100)
Reclassification adjustment for gains included in net income on derivatives, net of tax expense of $(89), $(29), $(126) and $(44)	(293)	(52)	(414)	(79)
Other comprehensive income (loss)	(600)	345	(761)	557
Total comprehensive income	$ 13,992	$ 8,766	$ 24,232	$ 16,470

Unaudited Condensed Consolidat6

Unaudited Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Tax expense (benefit) on unrealized holding gains (losses) on investment securities	$ (174)	$ 394	$ (396)	$ 509
Tax benefit (expense) on investment securities losses (gains) reclassified from other comprehensive income	0	(86)	(1)	(85)
Tax expense (benefit) on unrealized holding gains (losses) on derivatives	79	(87)	299	(56)
Tax benefit (expense) on derivative losses (gains) reclassified from other comprehensive income	$ (89)	$ (29)	$ (126)	$ (44)

Unaudited Condensed Consolidat7

Unaudited Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Preferred StockSeries A	Common Stock	Additional Paid-in-Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss), Net	Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Impact of adoption of ASU | ASU 2016-01						$ 0
Beginning balance at Dec. 31, 2016	$ 351,807	$ 0	$ 285,480	$ 6,782	$ 73,744	830	$ (15,029)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification for certain income tax effects under ASU 2018-02 (see Note 1) | ASU 2018-02						0
Net income	15,913				15,913
Other comprehensive income	557					557
Exercise of stock options	952		2,456	(1,504)
Purchase of treasury stock	(4,120)						(4,120)
Stock-based compensation	2,530			2,530
Ending balance at Jun. 30, 2017	367,639	0	287,936	7,808	89,657	1,387	(19,149)
Beginning balance at Mar. 31, 2017						1,042
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,421
Other comprehensive income	345
Ending balance at Jun. 30, 2017	367,639	0	287,936	7,808	89,657	1,387	(19,149)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Impact of adoption of ASU	534
Impact of adoption of ASU | ASU 2014-09					534
Impact of adoption of ASU | ASU 2016-01					(286)	286
Beginning balance at Dec. 31, 2017	389,071	0	289,507	10,290	111,732	1,246	(23,704)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification for certain income tax effects under ASU 2018-02 (see Note 1) | ASU 2018-02					(274)	274
Net income	24,993				24,993
Other comprehensive income	(761)					(761)
Issuance of preferred stock (net of offering costs of $1,818)	38,432	38,432
Preferred stock dividend	(762)				(762)
Exercise of stock options	907		2,101	(1,194)
Purchase of treasury stock	(2,462)						(2,462)
Stock-based compensation	3,942			3,942
Ending balance at Jun. 30, 2018	453,894	38,432	291,608	13,038	135,937	1,045	(26,166)
Beginning balance at Mar. 31, 2018						1,645
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,592
Other comprehensive income	(600)
Ending balance at Jun. 30, 2018	$ 453,894	$ 38,432	$ 291,608	$ 13,038	$ 135,937	$ 1,045	$ (26,166)

Unaudited Condensed Consolidat8

Unaudited Condensed Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Preferred Stock | Series A
Offering costs	$ 1,818

Unaudited Condensed Consolidat9

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income		$ 24,993	$ 15,913
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and intangible amortization expense		1,729	1,681
Amortization of deferred financing costs		101	101
Provision for loan losses		610	759
Net gain on the sale of loans		(19)	(17)
Stock-based compensation expense		3,942	2,530
Net gain on the sale or call of debt securities available-for-sale		(3)	(239)
Net gain on the call of debt securities held-to-maturity		(3)	0
Unrealized loss from equity securities		36	0
Net amortization of premiums and discounts on debt securities		431	442
Decrease (increase) in investment management fees receivable, net		(115)	331
Increase in accrued interest receivable		(2,668)	(993)
Increase (decrease) in accrued interest payable		(66)	52
Bank owned life insurance income		(858)	(899)
Increase in income taxes payable		0	9
Decrease in prepaid income taxes		9,424	35
Deferred tax provision		763	536
Decrease in accounts payable and other accrued expenses		(6,061)	(8,533)
Other, net		174	(2,819)
Net cash provided by operating activities		32,410	8,889
Cash flows from investing activities:
Purchase of debt securities available-for-sale		(61,489)	(7,701)
Purchase of debt securities held-to-maturity		(19,878)	(7,467)
Purchase of equity securities		(130)	(144)
Proceeds from the sale of debt securities available-for-sale		2,037	0
Principal repayments and maturities of debt securities available-for-sale		9,837	41,844
Principal repayments and maturities of debt securities held-to-maturity		2,000	0
Investment in low income housing and historic tax credits		(1,930)	(856)
Investment in small business investment companies		0	(235)
Net purchase of Federal Home Loan Bank stock		(2,687)	(8,510)
Net increase in loans		(371,714)	(380,661)
Proceeds from loan sales		3,342	6,867
Proceeds from the sale of other real estate owned		0	307
Additions to office properties and equipment		(755)	(533)
Acquisition		(1,335)	0
Net cash used in investing activities		(442,702)	(357,089)
Cash flows from financing activities:
Net increase in deposit accounts		453,591	243,089
Net decrease in Federal Home Loan Bank advances		(65,000)
Net increase in Federal Home Loan Bank advances			120,000
Net decrease in line of credit advances		(6,200)
Net increase in line of credit advances			4,000
Net proceeds from issuance of preferred stock		38,432	0
Net proceeds from exercise of stock options		907	952
Purchase of treasury stock		(2,462)	(4,120)
Dividends paid on preferred stock (1)	[1]	(762)	0
Net cash provided by financing activities		418,506	363,921
Net change in cash and cash equivalents during the period		8,214	15,721
Cash and cash equivalents at beginning of the period		156,153	103,994
Cash and cash equivalents at end of the period		164,367	119,715
Cash paid (received) during the period for:
Interest expense		34,112	17,750
Income taxes		(6,314)	5,876
Other non-cash activity:
Contingent consideration		$ 3,138	$ 0
[1]	The cash dividend payment was made to the Company’s transfer agent on June 29, 2018, and subsequently paid to preferred shareholders on July 2, 2018.

Basis of Information and Summar

Basis of Information and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
BASIS OF INFORMATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	BASIS OF INFORMATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES NATURE OF OPERATION TriState Capital Holdings, Inc. ( “we,” “us,” “our,” the “holding company,” or the “Company”) is a registered bank holding company pursuant to the Bank Holding Company Act of 1956, as amended. The Company has three wholly owned subsidiaries: TriState Capital Bank (the “Bank”), a Pennsylvania-chartered state bank; Chartwell Investment Partners, LLC (“Chartwell”), a registered investment advisor; and Chartwell TSC Securities Corp. (“CTSC Securities”), a registered broker/dealer. The Bank was established to serve the commercial banking needs of middle-market businesses and private banking needs of high-net-worth individuals. Chartwell provides investment management services primarily to institutional investors, mutual funds and individual investors. CTSC Securities supports marketing efforts for the proprietary investment products provided by Chartwell, including shares of mutual funds advised and/or administered by Chartwell. The Company and the Bank are subject to regulatory examination by the Federal Deposit Insurance Corporation (“FDIC”), the Pennsylvania Department of Banking and Securities, and the Federal Reserve. Chartwell is a registered investment advisor regulated by the Securities and Exchange Commission (“SEC”). CTSC Securities is regulated by the SEC and Financial Industry Regulatory Authority (“FINRA”). The Bank conducts business through its main office located in Pittsburgh, Pennsylvania, as well as its four additional representative offices in Cleveland, Ohio; Philadelphia, Pennsylvania; Edison, New Jersey; and New York, New York. Chartwell conducts business through its office located in Berwyn, Pennsylvania, and CTSC Securities conducts business through its office located in Pittsburgh, Pennsylvania. USE OF ESTIMATES The preparation of financial statements in conformity with generally accepted accounting principles (“GAAP”) in the United States of America requires management to make estimates and assumptions that affect the reported amounts of certain assets and liabilities, disclosure of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of related revenue and expense during the reporting period. Although our current estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual conditions could be different than those anticipated in the estimates, which could materially affect the financial results of our operations and financial condition. The material estimates that are particularly susceptible to significant changes relate to the determination of the allowance for loan losses, valuation of goodwill and other intangible assets and its evaluation for impairment, and deferred income taxes and its related recoverability, which are discussed later in this section. CONSOLIDATION The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, the Bank, Chartwell and CTSC Securities, after elimination of inter-company accounts and transactions. The accounts of the Bank, in turn, include its wholly owned subsidiary, Meadowood Asset Management, LLC (established in 2011 to hold and manage the foreclosed properties for the Bank), after elimination of inter-company accounts and transactions. The unaudited consolidated financial statements of the Company presented herein have been prepared pursuant to rules of the Securities and Exchange Commission for quarterly reports on Form 10-Q and do not include all of the information and note disclosures required by GAAP for a full year presentation. In the opinion of management, all adjustments (consisting of normal, recurring adjustments) and disclosures, considered necessary for the fair presentation of the accompanying consolidated financial statements, have been included. Interim results are not necessarily reflective of the results of the entire year. The accompanying consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto for the fiscal year ended December 31, 2017 , included in the Company’s Annual Report on Form 10-K filed with the SEC on February 23, 2018 . CASH AND CASH EQUIVALENTS For purposes of reporting cash flows, the Company has defined cash and cash equivalents as cash, interest-earning deposits with other institutions, federal funds sold, and short-term investments that have an original maturity of 90 days or less. INVESTMENT SECURITIES The Company’s investments are classified as either: (1) held-to-maturity – debt securities that the Company intends to hold until maturity and are reported at amortized cost; (2) trading securities – debt securities bought and held principally for the purpose of selling them in the near term and reported at fair value, with unrealized gains and losses included in non-interest income; (3) available-for-sale – debt securities not classified as either held-to-maturity or trading securities and reported at fair value, with unrealized gains and losses reported as a component of accumulated other comprehensive income (loss), on an after-tax basis; or (4) equity securities which are reported at fair value, with unrealized gains and losses included in non-interest income. The cost of securities sold is determined on a specific identification basis. Amortization of premiums and accretion of discounts are recorded as interest income on investments over the estimated life of the security utilizing the level yield method. We evaluate impaired investment securities quarterly to determine if impairments are temporary or other-than-temporary. For impaired debt and equity securities, management first determines whether it intends to sell or if it is more-likely than not that it will be required to sell the impaired securities. This determination considers current and forecasted liquidity requirements, regulatory and capital requirements and securities portfolio management. If the Company intends to sell a security with a fair value below amortized cost or if it is more-likely than not that it will be required to sell such a security before recovery, an other-than-temporary impairment (“OTTI”) charge is recorded through current period earnings for the full decline in fair value below amortized cost. For debt securities that the Company does not intend to sell or it is more likely than not that it will not be required to sell before recovery, an OTTI charge is recorded through current period earnings for the amount of the valuation decline below amortized cost that is attributable to credit losses. The remaining difference between the security’s fair value and amortized cost (that is, the decline in fair value not attributable to credit losses) is recognized in other comprehensive income (loss), in the consolidated statements of comprehensive income and the shareholders’ equity section of the consolidated statements of financial condition, on an after-tax basis. For equity securities an OTTI charge is recorded through current period earnings for the full decline in fair value below cost. FEDERAL HOME LOAN BANK STOCK The Company is a member of the Federal Home Loan Bank of Pittsburgh (“FHLB”). Member institutions are required to invest in FHLB stock. The stock is carried at cost, which approximates its liquidation value, and it is evaluated for impairment based on the ultimate recoverability of the par value. The following matters are considered by management when evaluating the FHLB stock for impairment: the ability of the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance of the FHLB; the impact of legislative and regulatory changes on the institution and its customer base; and the Company’s intent and ability to hold its FHLB stock for the foreseeable future. Management believes the Company’s holdings in the FHLB stock were recoverable at par value, as of June 30, 2018 and December 31, 2017 . Cash and stock dividends are reported as interest income on investments, in the consolidated statements of income. LOANS Loans and leases held-for-investment are stated at unpaid principal balances, net of deferred loan fees and costs. Loans held-for-sale are stated at the lower of cost or fair value. Interest income on loans is accrued at the contractual rate on the principal amount outstanding and includes the amortization of deferred loan fees and costs. Deferred loan fees and costs are amortized to interest income over the estimated life of the loan, taking into consideration scheduled payments and prepayments. The Company considers a loan to be a Troubled Debt Restructuring (“TDR”) when there is a concession made to a financially troubled borrower without adequate consideration provided to the Company. Once a loan is deemed to be a TDR, the Company considers whether the loan should be placed on non-accrual status. In assessing accrual status, the Company considers the likelihood that repayment and performance according to the original contractual terms will be achieved, as well as the borrower’s historical payment performance. A loan is designated and reported as a TDR until such loan is either paid-off or sold, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is fully expected that the remaining principal and interest will be collected according to the restructured agreement. The recognition of interest income on a loan is discontinued when, in management’s opinion, it is probable the borrower is unable to meet payments as they become due or when the loan becomes 90 days past due, whichever occurs first. All accrued and unpaid interest on such loans is reversed. Such interest ultimately collected is applied to reduce principal if there is doubt about the collectability of principal. If a borrower brings a loan current for which accrued interest has been reversed, then the recognition of interest income on the loan is resumed, once the loan has been current for a period of six consecutive months or greater. The Company is a party to financial instruments with off-balance sheet risk (commitments to extend credit) in the normal course of business to meet the financing needs of its customers. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the commitment. Commitments generally have fixed expiration dates or other termination clauses (i.e. demand loans) and may require payment of a fee. Since some of the commitments are expected to expire without being drawn upon, the unfunded commitment amount does not necessarily represent future cash requirements. The Company evaluates each customer’s credit worthiness on a case-by-case basis using the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. The amount of collateral obtained, if deemed necessary by the Company upon extension of a commitment, is based on management’s credit evaluation of the borrower. OTHER REAL ESTATE OWNED Real estate owned, other than bank premises, is recorded at fair value less estimated selling costs. Fair value is determined based on an independent appraisal. Expenses related to holding the property are charged against earnings when incurred. Depreciation is not recorded on other real estate owned (“OREO”) properties. ALLOWANCE FOR LOAN LOSSES The allowance for loan losses is established through provisions for loan losses that are recorded in the consolidated statements of income. Loans are charged off against the allowance for loan losses when management believes that the principal is uncollectible. If, at a later time, amounts are recovered with respect to loans previously charged off, the recovered amount is credited to the allowance for loan losses. In management’s judgment, the allowance was appropriate to cover probable losses inherent in the loan portfolio as of June 30, 2018 and December 31, 2017 . Management’s judgment takes into consideration general economic conditions, diversification and seasoning of the loan portfolio, historic loss experience, identified credit problems, delinquency levels and adequacy of collateral. Although management believes it has used the best information available to it in making such determinations, and that the present allowance for loan losses is adequate, future adjustments to the allowance may be necessary, and net income may be adversely affected if circumstances differ substantially from the assumptions used in determining the level of the allowance. In addition, as an integral part of their periodic examination, certain regulatory agencies review the adequacy of the Bank’s allowance for loan losses and may direct the Bank to make additions to the allowance based on their judgments about information available to them at the time of their examination. The two components of the allowance for loan losses represent estimates of general reserves based upon Accounting Standards Codification (“ASC”) Topic 450, Contingencies; and specific reserves based upon ASC Topic 310, Receivables . ASC Topic 450 applies to homogeneous loan pools such as commercial loans, consumer lines of credit and residential mortgages that are not individually evaluated for impairment. ASC Topic 310 is applied to commercial and consumer loans that are individually evaluated for impairment. In management’s opinion, a loan is impaired, based upon current information and events, when it is probable that the loan will not be repaid according to its original contractual terms, including both principal and interest, or if a loan is designated as a TDR. Management performs individual assessments of impaired loans to determine the existence of loss exposure based upon a discounted cash flows method or where a loan is collateral dependent, based upon the fair value of the collateral less estimated selling costs. In estimating probable loan loss of general reserves management considers numerous factors, including historical charge-offs and subsequent recoveries. Management also considers, but is not limited to, qualitative factors that influence our credit quality, such as delinquency and non-performing loan trends, changes in loan underwriting guidelines and credit policies, the results of internal loan reviews, etc. Finally, management considers the impact of changes in current local and regional economic conditions in the markets that we serve. Management bases the computation of the allowance for loan losses of general reserves on two factors: the primary factor and the secondary factor. The primary factor is based on the inherent risk identified by management within each of the Company’s three loan portfolios based on the historical loss experience of each loan portfolio and the loss emergence period. Management has developed a methodology that is applied to each of the three primary loan portfolios: private banking, commercial and industrial, and commercial real estate. As the loan loss history, mix, and risk ratings of each loan portfolio change, the primary factor adjusts accordingly. The allowance for loan losses related to the primary factor is based on our estimates as to probable losses for each loan portfolio. The secondary factor is intended to capture risks related to events and circumstances that management believes have an impact on the performance of the loan portfolio. Although this factor is more subjective in nature, the methodology focuses on internal and external trends in pre-specified categories (risk factors) and applies a quantitative percentage that drives the secondary factor. There are nine risk factors and each risk factor is assigned a reserve level based on management’s judgment as to the probable impact of each risk factor on each loan portfolio and is monitored on a quarterly basis. As the trend in any risk factor changes, a corresponding change occurs in the reserve associated with each respective risk factor, such that the secondary factor remains current to changes in each loan portfolio. The Company also maintains a reserve for losses on unfunded commitments. This reserve is reflected as a component of other liabilities and, in management’s judgment, is sufficient to cover probable losses inherent in the commitments. Management tracks the level and trends in unused commitments and takes into consideration the same factors as those considered for purposes of the allowance for loan losses on outstanding loans. INVESTMENT MANAGEMENT FEES The Company recognizes investment management fee revenue when the advisory services are performed. Fees are based on assets under management and are calculated pursuant to individual client contracts. Investment management fees are generally received on a quarterly basis. Certain incremental costs incurred to acquire some of our investment management contracts are deferred and amortized to non-interest expense over the estimated life of the contract. Investment management fees receivable represent amounts due for contractual investment management services provided to the Company’s clients, primarily institutional investors, mutual funds and individual investors. Management performs credit evaluations of its customers’ financial condition when it is deemed to be necessary, and does not require collateral. The Company provides an allowance for uncollectible accounts based on specifically identified receivables. Bad debt expense is recorded to other non-interest expense on the consolidated statements of income and the allowance for uncollectible accounts is recorded to investment management fees receivable, net on the consolidated statements of financial position. Investment management fees receivable are considered delinquent when payment is not received within contractual terms and are charged off against the allowance for uncollectible accounts when management determines that recovery is unlikely and the Company ceases its collection efforts. There was no bad debt expense recorded for the six months ended June 30, 2018 , and no allowance for uncollectible accounts as of June 30, 2018 . There was $150,000 bad debt expense associated with a single relationship recorded for the six months ended June 30, 2017 , and there was no allowance for uncollectible accounts as of December 31, 2017 . BUSINESS COMBINATIONS The Company accounts for business combinations using the acquisition method of accounting. Under this method of accounting, the acquired company’s net assets are recorded at fair value as of the date of acquisition, and the results of operations of the acquired company are combined with our results from that date forward. Acquisition costs are expensed when incurred. The difference between the purchase price and the fair value of the net assets acquired (including identified intangibles) is recorded as goodwill. The change in the initial estimate of any contingent earn out amounts is reflected in the consolidated statements of income. GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill represents the excess of the cost of an acquisition over the fair value of the net assets acquired. Goodwill is not amortized and is subject to at least annual assessments for impairment by applying a fair value based test. The Company reviews goodwill annually and again at any quarter-end if a material event occurs during the quarter that may affect goodwill. If goodwill testing is required, an assessment of qualitative factors can be completed before performing the two step goodwill impairment test. If an assessment of qualitative factors determines it is more likely than not that the fair value of a reporting unit exceeds its carrying amount, then the two step goodwill impairment test is not required. Goodwill is evaluated for potential impairment by determining if the fair value has fallen below carrying value. Other intangible assets represent purchased assets that may lack physical substance but can be distinguished from goodwill because of contractual or other legal rights. The Company has determined that certain of its acquired mutual fund client relationships meet the criteria to be considered indefinite-lived assets because the Company expects both the renewal of these contracts and the cash flows generated by these assets to continue indefinitely. Accordingly, the Company does not amortize these intangible assets, but instead reviews these assets annually or more frequently whenever events or circumstances occur indicating that the recorded indefinite-lived assets may be impaired. Each reporting period, the Company assesses whether events or circumstances have occurred which indicate that the indefinite life criteria are no longer met. If the indefinite life criteria are no longer met, the Company would assess whether the carrying value of these assets exceeds its fair value, an impairment loss would be recorded in an amount equal to any such excess and these assets would be reclassified to finite-lived. Other intangible assets that the Company has determined to have finite lives, such as trade name, client lists and non-compete agreements are amortized over their estimated useful lives. These finite-lived intangible assets are amortized on a straight-line basis over their estimated useful lives, which range from four to twenty-five years. Finite-lived intangibles are evaluated for impairment on an annual basis or more frequently whenever events or circumstances occur indicating that the carrying amount may not be recoverable. OFFICE PROPERTIES AND EQUIPMENT Office properties and equipment are stated at cost less accumulated depreciation. Depreciation is computed on the straight-line method over the estimated useful lives of the related assets, except for leasehold improvements which are amortized over the terms of the respective leases or the estimated useful lives of the improvements, whichever is shorter. Estimated useful lives are dependent upon the nature and condition of the asset and range from three to ten years. Repairs and maintenance are charged to expense as incurred, while improvements that extend the useful life are capitalized and depreciated to non-interest expense over the estimated remaining life of the asset. When the Bank receives an allowance for improvements to be made to one of its leased offices, we record the allowance as a deferred liability and recognize it as a reduction to rent expense over the life of the related lease. BANK OWNED LIFE INSURANCE Bank owned life insurance (“BOLI”) policies on certain officers and employees are recorded at net cash surrender value on the consolidated statements of financial condition. Upon termination of the BOLI policy the Company receives the cash surrender value. BOLI benefits are payable to the Company upon death of the insured. Changes in net cash surrender value are recognized as non-interest income in the consolidated statements of income. DEPOSITS Deposits are stated at principal outstanding. Interest on deposits is accrued and charged to interest expense daily and is paid or credited in accordance with the terms of the respective accounts. BORROWINGS The Company records FHLB advances, line of credit borrowings and subordinated notes payable at their principal amount net of debt issuance costs. Interest expense is recognized based on the coupon rate of the obligations. Costs associated with the acquisition of subordinated notes payable are amortized to interest expense over the expected term of the borrowing. EARNINGS PER COMMON SHARE Earnings per common share (“EPS”) is computed using the two-class method, where net income is reduced by dividends declared on our preferred stock to derive net income available to common shareholders. Basic EPS is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period, excluding non-vested restricted stock. Diluted EPS reflects the potential dilution upon the exercise of stock options and the vesting of restricted stock awards granted utilizing the treasury stock method. INCOME TAXES The Company utilizes the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the tax effects of differences between the financial statement and tax basis of assets and liabilities. Deferred tax assets and liabilities are measured using the enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities with regard to a change in tax rates is recognized in income in the period that includes the enactment date. Management assesses all available evidence to determine the amount of deferred tax assets that are more-likely-than-not to be realized. The available evidence used in connection with the assessments includes taxable income in prior periods, projected taxable income, potential tax planning strategies and projected reversals of deferred tax items. These assessments involve a degree of subjectivity and may undergo significant change. Changes to the evidence used in the assessments could have a material adverse effect on the Company’s results of operations in the period in which they occur. The Company considers uncertain tax positions that it has taken or expects to take on a tax return. Any interest and penalties related to unrecognized tax benefits would be recognized in income tax expense in the consolidated statements of income. DERIVATIVES AND HEDGING ACTIVITIES All derivatives are evaluated at inception as to whether or not they are hedging or non-hedging activities, and appropriate documentation is maintained to support the final determination. All derivatives are recognized as either assets or liabilities on the consolidated statements of financial condition and measured at fair value. For derivatives designated as fair value hedges, changes in the fair value of the derivative and the hedged item related to the hedged risk are recognized in earnings. Any hedge ineffectiveness would be recognized in the income statement line item pertaining to the hedged item. For derivatives designated as cash flow hedges, changes in fair value of the effective portion of the cash flow hedges are reported in accumulated other comprehensive income (loss). When the cash flows associated with the hedged item are realized, the gain or loss included in accumulated other comprehensive income (loss) is recognized in the consolidated statements of income. The Company also has interest rate derivative positions that are not designated as hedging instruments. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings. FAIR VALUE MEASUREMENT Fair value is defined as the exchange price that would be received to sell an asset or paid to transfer a liability in a principal or most advantageous market for the asset or liability in an orderly transaction between market participants as of the measurement date, using assumptions market participants would use when pricing an asset or liability. An orderly transaction assumes exposure to the market for a customary period for marketing activities prior to the measurement date and not a forced liquidation or distressed sale. Fair value measurement and disclosure guidance provides a three-level hierarchy that prioritizes the inputs of valuation techniques used to measure fair value into three broad categories: • Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities. • Level 2 – Observable inputs such as quoted prices for similar assets and liabilities in active markets, quoted prices for similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data. • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies, and similar techniques that use significant unobservable inputs. Fair value must be recorded for certain assets and liabilities every reporting period on a recurring basis or under certain circumstances, on a non-recurring basis. STOCK-BASED COMPENSATION The Company accounts for its stock-based compensation awards based on estimated fair values of share-based awards made to employees and directors. Compensation cost for all share-based payments is based on the estimated grant-date fair value. The value of the portion of the award that is ultimately expected to vest is included in stock-based compensation expense in the consolidated statements of income and recorded as a component of additional paid-in capital, for equity-based awards. Compensation expense for all awards is recognized on a straight-line basis over the requisite service period for the entire grant. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Unrealized holding gains and the non-credit component of unrealized losses on the Company’s debt securities available-for-sale are included in accumulated other comprehensive income (loss), net of applicable income taxes. Also included in accumulated other comprehensive income (loss) is the remaining unamortized balance of the unrealized holding gains (non-credit losses), net of applicable income taxes, that existed on the transfer date for debt securities reclassified into the held-to-maturity category from the available-for-sale category. Unrealized holding gains (losses) on the effective portion of the Company’s cash flow hedge derivatives are included in accumulated other comprehensive income (loss), net of applicable income taxes, which will be reclassified to interest expense as interest payments are made on the Company’s debt. Income tax effects in accumulated other comprehensive income are released as investments are sold or matured and liabilities are extinguished. TREASURY STOCK The repurchase of the Company’s common stock is recorded at cost. At the time of reissuance, the treasury stock account is reduced using the average cost method. Gains and losses on the reissuance of common stock are recorded in additional paid-in capital, to the extent additional paid-in capital from any previous net gains on treasury share transactions exists. Any net deficiency is charged to retained earnings. RECENT ACCOUNTING DEVELOPMENTS In June 2018, the FASB issued Accounting Standard Update (“ASU”) 2018-07, “Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting” which more closely aligns the accounting for employee and nonemployee share-based payments. This standard is effective for public business entities for annual and interim periods in fiscal years beginning after December 15, 2018 . Early adoption is permitted, but no earlier than an entity’s adoption date of Topic 606. The Company is currently evaluating the impact this standard will have on our results of operations and financial position. In February 2018, the FASB issued ASU 2018-02, "Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income" to address a narrow-scope financial reporting issue that arose as a consequence of the change in the tax law. The standard allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. This standard is effective for all entities for fiscal years beginning after December 15, 2018 , and interim periods within those fiscal years with early adoption permitted, including adoption in any interim period, for public business entities for reporting periods for which financial statements have not yet been issued. The changes could be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. The Company early adopted this standard on January 1, 2018 , and elected to reclassify the effect of the change in the U.S. federal corporate income tax rate from accumulated other comprehensive income to retained earnings of $274,000 , which is reflected in the Consolidated S

Business Combination

Business Combination	6 Months Ended
	Jun. 30, 2018
Business Combinations [Abstract]
BUSINESS COMBINATION	BUSINESS COMBINATION On April 6, 2018, TriState Capital Holdings, Inc. through its wholly owned subsidiary, Chartwell Investment Partners, LLC, completed the acquisition of investment management contracts, select personnel and related assets from Columbia Partners, L.L.C. Investment Management (the "Columbia acquisition"), totaling approximately $1.07 billion in assets under management. Under the terms of the agreement with Columbia Partners, L.L.C. Investment Management (“Columbia”) investment management contracts were acquired for a purchase price consisting of $1.3 million paid in cash at closing based on a multiple of run-rate revenue plus an earn out. The earn out, which is limited to $3.8 million under the terms of the agreement, will be calculated based on a multiple of run-rate revenue at December 31, 2018. The earn out was estimated, at closing, to be approximately $3.1 million . Any change to the earn out calculation from the estimated $3.1 million recorded at closing will be recorded in the statement of income in the period in which it is deemed probable to occur. The foregoing summary of the agreement and the transactions contemplated by it does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the agreement. The following table summarizes total consideration at closing and assets acquired for the Columbia acquisition on April 6, 2018: (Dollars in thousands) Columbia Acquisition Consideration paid: Cash $ 1,334 Estimated earn out, at closing 3,138 Fair value of total consideration $ 4,472 Intangible assets acquired $ 1,537 Goodwill 2,935 Total net assets purchased $ 4,472 In connection with the Columbia acquisition, total acquisition-related transaction costs incurred by TriState Capital were not significant. Since the acquisition, the Columbia acquired operations contributed revenues of $516,000 and approximate earnings of $24,000 which were included in the consolidated statement of income for the six months ended June 30, 2018 . Goodwill is not amortized for book purposes, but is deductible for tax purposes. The following table shows the amount of other intangible assets acquired through the Columbia acquisition on April 6, 2018, by class and estimated useful life. (Dollars in thousands) Gross Amount Weighted Average Estimated Useful Life Client Relationships: Sub-advisory client list $ 115 132 Separate managed accounts client list 1,365 108 Non-compete agreements 57 48 Total finite-lived intangibles $ 1,537 108 The following table presents unaudited pro forma financial information which combines the historical consolidated statements of income of the Company and the Columbia contracts acquired to give effect to the acquisition as if it had occurred on January 1, 2017, for the periods indicated. Pro Forma Six Months Ended June 30, (Dollars in thousands, except per share data) 2018 2017 Total revenue $ 79,244 $ 67,229 Net income available to common shareholders $ 24,314 $ 16,124 Earnings per common share: Basic $ 0.88 $ 0.58 Diluted $ 0.84 $ 0.56 Total revenue is defined as net interest income and non-interest income, excluding gains and losses on the sale and call of debt securities. Pro forma adjustments include intangible amortization expense and income tax expense.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
INVESTMENT SECURITIES	INVESTMENT SECURITIES Debt securities available-for-sale and held-to-maturity were comprised of the following: June 30, 2018 (Dollars in thousands) Amortized Gross Unrealized Gross Unrealized Estimated Debt securities available-for-sale: Corporate bonds $ 99,737 $ 13 $ 1,136 $ 98,614 Trust preferred securities 17,903 514 — 18,417 Non-agency collateralized loan obligations 626 — 4 622 Agency collateralized mortgage obligations 36,742 60 4 36,798 Agency mortgage-backed securities 21,942 102 427 21,617 Agency debentures 10,480 5 86 10,399 Total debt securities available-for-sale 187,430 694 1,657 186,467 Debt securities held-to-maturity: Corporate bonds 32,186 360 33 32,513 Agency debentures 21,870 10 40 21,840 Municipal bonds 23,042 11 123 22,930 Total debt securities held-to-maturity 77,098 381 196 77,283 Total debt securities $ 264,528 $ 1,075 $ 1,853 $ 263,750 December 31, 2017 (Dollars in thousands) Amortized Gross Unrealized Gross Unrealized Estimated Debt securities available-for-sale: Corporate bonds $ 61,616 $ 216 $ 143 $ 61,689 Trust preferred securities 17,840 741 — 18,581 Non-agency collateralized loan obligations 811 — 6 805 Agency collateralized mortgage obligations 38,873 25 76 38,822 Agency mortgage-backed securities 19,007 96 150 18,953 Total debt securities available-for-sale 138,147 1,078 375 138,850 Debt securities held-to-maturity: Corporate bonds 32,189 785 33 32,941 Agency debentures 1,984 3 — 1,987 Municipal bonds 25,102 122 11 25,213 Total debt securities held-to-maturity 59,275 910 44 60,141 Total debt securities $ 197,422 $ 1,988 $ 419 $ 198,991 Interest income on investment securities was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Taxable interest income $ 1,901 $ 1,206 $ 3,314 $ 2,384 Non-taxable interest income 105 113 216 226 Dividend income 294 216 554 395 Total interest income on investment securities $ 2,300 $ 1,535 $ 4,084 $ 3,005 As of June 30, 2018 , the contractual maturities of the debt securities were: June 30, 2018 Available-for-Sale Held-to-Maturity (Dollars in thousands) Amortized Estimated Amortized Estimated Due in one year or less $ 20,211 $ 20,158 $ 6,230 $ 6,253 Due from one to five years 58,347 58,049 31,938 31,912 Due from five to ten years 31,174 30,613 38,930 39,118 Due after ten years 77,698 77,647 — — Total debt securities $ 187,430 $ 186,467 $ 77,098 $ 77,283 The $77.6 million fair value of debt securities available-for-sale with a contractual maturity due after ten years as of June 30, 2018 , included $53.7 million , or 69.1% , that are floating-rate securities. The $38.9 million amortized cost of debt securities held-to-maturity with a contractual maturity due from five to ten years as of June 30, 2018 , included $20.8 million that have call provisions in one to five years that would either mature, if called, or become floating-rate securities after the call date. Prepayments may shorten the contractual lives of the collateralized mortgage obligations, mortgage-backed securities and collateralized loan obligations. Proceeds from the sale and call of debt securities available-for-sale and held-to-maturity and related realized gains and losses were: Available-for-Sale Held-to-Maturity Available-for-Sale Held-to-Maturity Three Months Ended June 30, Three Months Ended June 30, Six Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 2018 2017 2018 2017 Proceeds from sales $ — $ — $ — $ — $ 2,037 $ — $ — $ — Proceeds from calls 4,081 16,675 105 — 4,081 21,675 1,000 — Total proceeds $ 4,081 $ 16,675 $ 105 $ — $ 6,118 $ 21,675 $ 1,000 $ — Gross realized gains $ 4 $ 241 $ — $ — $ 6 $ 241 $ 3 $ — Gross realized losses 3 — — — 3 2 — — Net realized gains (losses) $ 1 $ 241 $ — $ — $ 3 $ 239 $ 3 $ — Debt securities available-for-sale of $3.7 million , as of June 30, 2018 , were held in safekeeping at the FHLB and were included in the calculation of borrowing capacity. The following tables show the fair value and gross unrealized losses on temporarily impaired debt securities available-for-sale and held-to-maturity and equity securities, by investment category and length of time that the individual securities have been in a continuous unrealized loss position as of June 30, 2018 and December 31, 2017 , respectively: June 30, 2018 Less than 12 Months 12 Months or More Total (Dollars in thousands) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Debt securities available-for-sale: Corporate bonds $ 86,824 $ 1,136 $ — $ — $ 86,824 $ 1,136 Non-agency collateralized loan obligations — — 622 4 622 4 Agency collateralized mortgage obligations 1,731 1 3,928 3 5,659 4 Agency mortgage-backed securities 5,551 93 8,026 334 13,577 427 Agency debentures 7,300 86 — — 7,300 86 Total debt securities available-for-sale 101,406 1,316 12,576 341 113,982 1,657 Debt securities held-to-maturity: Corporate bonds 5,404 33 — — 5,404 33 Agency debentures 10,841 40 — — 10,841 40 Municipal bonds 15,091 123 — — 15,091 123 Total debt securities held-to-maturity 31,336 196 — — 31,336 196 Equity securities — — 8,630 410 8,630 410 Total temporarily impaired securities (1) $ 132,742 $ 1,512 $ 21,206 $ 751 $ 153,948 $ 2,263 (1) The number of investment positions with unrealized losses totaled 63 for available-for-sale securities, 25 for held-to-maturity securities and 2 for equity securities. December 31, 2017 Less than 12 Months 12 Months or More Total (Dollars in thousands) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Debt securities available-for-sale: Corporate bonds $ 29,995 $ 143 $ — $ — $ 29,995 $ 143 Non-agency collateralized loan obligations — — 805 6 805 6 Agency collateralized mortgage obligations 1,593 1 32,816 75 34,409 76 Agency mortgage-backed securities 2,960 10 9,437 140 12,397 150 Total debt securities available-for-sale 34,548 154 43,058 221 77,606 375 Debt securities held-to-maturity: Corporate bonds 2,406 33 — — 2,406 33 Municipal bonds 6,051 11 — — 6,051 11 Total debt securities held-to-maturity 8,457 44 — — 8,457 44 Equity securities — — 8,635 275 8,635 275 Total temporarily impaired securities (1) $ 43,005 $ 198 $ 51,693 $ 496 $ 94,698 $ 694 (1) The number of investment positions with unrealized losses totaled 28 for available-for-sale securities, 8 for held-to-maturity securities and 2 for equity securities. The change in the fair values of our municipal bonds, agency debentures, agency collateralized mortgage obligation and agency mortgage-backed securities are primarily the result of interest rate fluctuations. To assess for credit impairment, management evaluates the underlying issuer’s financial performance and the related credit rating information through a review of publicly available financial statements and other publicly available information. This most recent review did not identify any issues related to the ultimate repayment of principal and interest on these securities. In addition, the Company has the ability and intent to hold debt securities in an unrealized loss position until recovery of their amortized cost. Based on this, the Company considers all of the unrealized losses to be temporary. There were no debt securities classified as trading outstanding as of June 30, 2018 and December 31, 2017 . Equity securities consists of mutual funds investing in short-duration, corporate bonds. There were $8.6 million and $8.6 million in equity securities outstanding as of June 30, 2018 and December 31, 2017 , respectively. There was $16.5 million and $13.8 million in FHLB stock outstanding as of June 30, 2018 and December 31, 2017 , respectively.

Loans

Loans	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
LOANS	LOANS The Company generates loans through the private banking and middle-market banking channels. The private banking channel primarily includes loans made to high-net-worth individuals, trusts and businesses that are typically secured by cash, marketable securities or cash value life insurance. The middle-market banking channel consists of our commercial and industrial (“C&I”) and commercial real estate (“CRE”) loan portfolios that serve middle-market businesses and real estate developers in our primary markets. Loans held-for-investment were comprised of the following: June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Loans held-for-investment, before deferred fees and costs $ 2,483,285 $ 741,445 $ 1,326,318 $ 4,551,048 Deferred loan costs (fees) 4,877 456 (3,453 ) 1,880 Loans held-for-investment, net of deferred fees and costs 2,488,162 741,901 1,322,865 4,552,928 Allowance for loan losses (1,557 ) (8,786 ) (4,978 ) (15,321 ) Loans held-for-investment, net $ 2,486,605 $ 733,115 $ 1,317,887 $ 4,537,607 December 31, 2017 (Dollars in thousands) Private Commercial Commercial Total Loans held-for-investment, before deferred fees and costs $ 2,261,625 $ 667,028 $ 1,254,184 $ 4,182,837 Deferred loan costs (fees) 4,112 656 (3,361 ) 1,407 Loans held-for-investment, net of deferred fees and costs 2,265,737 667,684 1,250,823 4,184,244 Allowance for loan losses (1,577 ) (8,043 ) (4,797 ) (14,417 ) Loans held-for-investment, net $ 2,264,160 $ 659,641 $ 1,246,026 $ 4,169,827 The Company’s customers have unused loan commitments based on the availability of eligible collateral or other terms and conditions under the loan agreement . Often these commitments are not fully utilized and therefore the total amount does not necessarily represent future cash requirements. The amount of unfunded commitments, including standby letters of credit, as of June 30, 2018 and December 31, 2017 , was $2.96 billion and $2.37 billion , respectively. The interest rate for each commitment is based on the prevailing market conditions at the time of funding. The reserve for losses on unfunded commitments was $504,000 and $504,000 as of June 30, 2018 and December 31, 2017 , respectively, which includes reserves for probable losses on unfunded loan commitments, including standby letters of credit and also risk participations. The total unfunded commitments above included loans in the process of origination totaling approximately $72.5 million and $53.3 million as of June 30, 2018 and December 31, 2017 , respectively, which extend over varying periods of time. The Company issues standby letters of credit in the normal course of business. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Standby letters of credit generally are contingent upon the failure of the customer to perform according to the terms of the underlying contract with the third party. The Company would be required to perform under the standby letters of credit when drawn upon by the guaranteed party in the case of non-performance by the Company’s customer. Collateral may be obtained based on management’s credit assessment of the customer. The amount of unfunded commitments related to standby letters of credit as of June 30, 2018 and December 31, 2017 , included in the total unfunded commitments above, was $66.8 million and $74.8 million , respectively. Should the Company be obligated to perform under the standby letters of credit the Company will seek repayment from the customer for amounts paid. During the six months ended June 30, 2018 and 2017, there were draws on standby letters of credit totaling $5.7 million and $191,000 , respectively, which were repaid by the borrower. Most of these commitments are expected to expire without being drawn upon and the total amount does not necessarily represent future cash requirements. The potential liability for losses on standby letters of credit was included in the reserve for losses on unfunded commitments. The Company has entered into risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are a participant. The risk participation agreements provide credit protection to the financial institution counterparties should the customers fail to perform on their interest rate derivative contracts. The potential liability for outstanding obligations was included in the reserve for losses on unfunded commitments.

Allowance for Loan Losses

Allowance for Loan Losses	6 Months Ended
	Jun. 30, 2018
Allowance for Loan Losses [Abstract]
ALLOWANCE FOR LOAN LOSSES	ALLOWANCE FOR LOAN LOSSES Our allowance for loan losses represents our estimate of probable loan losses inherent in the loan portfolio at a specific point in time. This estimate includes losses associated with specifically identified loans, as well as estimated probable credit losses inherent in the remainder of the loan portfolio. Additions are made to the allowance through both periodic provisions recorded in the consolidated statements of income and recoveries of losses previously incurred. Reductions to the allowance occur as loans are charged off or when the credit history of any of the three loan portfolios improves . Management evaluates the adequacy of the allowance quarterly, and in doing so relies on various factors including, but not limited to, assessment of historical loss experience, delinquency and non-accrual trends, portfolio growth, underlying collateral coverage and current economic conditions. This evaluation is subjective and requires material estimates that may change over time. In addition, management evaluates the overall methodology for the allowance for loan losses on an annual basis. The calculation of the allowance for loan losses takes into consideration the inherent risk identified within each of the Company’s three primary loan portfolios: private banking, commercial and industrial, and commercial real estate. In addition, management takes into account the historical loss experience of each loan portfolio, to ensure that the allowance for loan losses is sufficient to cover probable losses inherent in such loan portfolios. Refer to Note 1, Summary of Significant Accounting Policies , for more details on the Company’s allowance for loan losses policy. The following discusses key characteristics and risks within each primary loan portfolio: Private Banking Loans Our private banking lending activities are conducted on a national basis. This loan portfolio primarily includes loans made to high-net-worth individuals, trusts and businesses that are typically secured by cash, marketable securities or cash value life insurance. This portfolio also has some loans that are secured by residential real estate or other financial assets, lines of credit and unsecured loans. The primary sources of repayment for these loans are the income and/or assets of the borrower. The underlying collateral is the most important indicator of risk for this loan portfolio. The overall lower risk profile of this portfolio is driven by loans secured by cash, marketable securities or cash value life insurance, which were 95.7% and 94.6% of total private banking loans as of June 30, 2018 and December 31, 2017 , respectively. Middle-Market Banking: Commercial and Industrial Loans This loan portfolio primarily includes loans made to service companies or manufacturers generally for the purposes of financing production, operating capacity, accounts receivable, inventory, equipment, acquisitions and recapitalizations. Cash flow from the borrower’s operations is the primary source of repayment for these loans. The borrower’s industry and local and regional economic conditions are important indicators of risk for this loan portfolio. Collateral for these types of loans at times does not have sufficient value in a distressed or liquidation scenario to satisfy the outstanding debt. C&I loans collateralized by marketable securities are treated the same as private banking loans for purposes of the allowance for loan loss calculation. Middle-Market Banking: Commercial Real Estate Loans This loan portfolio includes loans secured by commercial purpose real estate, including both owner-occupied properties and investment properties for various purposes including office, industrial, multifamily, retail, hospitality, healthcare and self-storage. The primary source of repayment for commercial real estate loans secured by owner-occupied properties is cash flow from the borrower’s operations. Individual project cash flows, global cash flows and liquidity from the developer, or the sale of the property are the primary sources of repayment for commercial real estate loans secured by investment properties. Also included are commercial construction loans to finance the construction or renovation of structures as well as to finance the acquisition and development of raw land for various purposes. The increased level of risk for these loans is generally confined to the construction period. If there are problems the project may not be completed, and as such, may not provide sufficient cash flow on its own to service the debt or have sufficient value in a liquidation to cover the outstanding principal. The underlying purpose and collateral of the loans are important indicators of risk for this loan portfolio. Additional risks exist and are dependent on several factors such as the condition of the local and regional economies, whether or not the project is owner-occupied, the type of project, and the experience and resources of the developer. On a monthly basis, management monitors various credit quality indicators for the loan portfolio, including delinquency, non-performing status, changes in risk ratings, changes in the underlying performance of the borrowers and other relevant factors. On a daily basis, the Company monitors the collateral of loans secured by cash, marketable securities or cash value life insurance within the private banking portfolio, which further reduces the risk profile of that portfolio. Refer to Note 1, Summary of Significant Accounting Policies , for the Company’s policy for determining past due status of loans. Loan risk ratings are assigned based upon the creditworthiness of the borrower and the quality of the collateral for loans secured by marketable securities. Loan risk ratings are reviewed on an ongoing basis according to internal policies. Loans within the pass rating are believed to have a lower risk of loss than loans that are risk rated as special mention, substandard and doubtful, which are believed to have an increasing risk of loss. Our internal risk ratings are consistent with regulatory guidance. Management also monitors the loan portfolio through a formal periodic review process. All non-pass rated loans are reviewed monthly and higher risk-rated loans within the pass category are reviewed three times a year. The Company’s risk ratings are consistent with regulatory guidance and are as follows: Pass – The loan is currently performing in accordance with its contractual terms. Special Mention – A special mention loan has potential weaknesses that warrant management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects or in our credit position at some future date. Economic and market conditions, beyond the customer’s control, may in the future necessitate this classification. Substandard – A substandard loan is not adequately protected by the net worth and/or paying capacity of the obligor or by the collateral pledged, if any. Substandard loans have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. These loans are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Doubtful – A doubtful loan has all the weaknesses inherent in a loan categorized as substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The following tables present the recorded investment in loans by credit quality indicator: June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Pass $ 2,487,864 $ 714,039 $ 1,321,015 $ 4,522,918 Special mention — 22,506 1,850 24,356 Substandard 298 5,356 — 5,654 Loans held-for-investment $ 2,488,162 $ 741,901 $ 1,322,865 $ 4,552,928 December 31, 2017 (Dollars in thousands) Private Commercial Commercial Total Pass $ 2,265,369 $ 639,987 $ 1,248,972 $ 4,154,328 Special mention — 24,882 1,851 26,733 Substandard 368 2,815 — 3,183 Loans held-for-investment $ 2,265,737 $ 667,684 $ 1,250,823 $ 4,184,244 Changes in the allowance for loan losses were as follows for the three months ended June 30, 2018 and 2017 : Three Months Ended June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Balance, beginning of period $ 1,556 $ 8,466 $ 4,796 $ 14,818 Provision for loan losses 1 232 182 415 Charge-offs — — — — Recoveries — 88 — 88 Balance, end of period $ 1,557 $ 8,786 $ 4,978 $ 15,321 Three Months Ended June 30, 2017 (Dollars in thousands) Private Commercial Commercial Total Balance, beginning of period $ 1,421 $ 10,436 $ 4,328 $ 16,185 Provision for loan losses 27 198 291 516 Charge-offs — (1,000 ) — (1,000 ) Recoveries — 267 — 267 Balance, end of period $ 1,448 $ 9,901 $ 4,619 $ 15,968 Changes in the allowance for loan losses were as follows for the six months ended June 30, 2018 and 2017 : Six Months Ended June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Balance, beginning of period $ 1,577 $ 8,043 $ 4,797 $ 14,417 Provision (credit) for loan losses (20 ) 449 181 610 Charge-offs — — — — Recoveries — 294 — 294 Balance, end of period $ 1,557 $ 8,786 $ 4,978 $ 15,321 Six Months Ended June 30, 2017 (Dollars in thousands) Private Commercial Commercial Total Balance, beginning of period $ 1,424 $ 12,326 $ 5,012 $ 18,762 Provision (credit) for loan losses 24 1,128 (393 ) 759 Charge-offs — (3,889 ) — (3,889 ) Recoveries — 336 — 336 Balance, end of period $ 1,448 $ 9,901 $ 4,619 $ 15,968 The following tables present the age analysis of past due loans segregated by class of loan: June 30, 2018 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Total Private banking $ 280 $ 90 $ — $ 370 $ 2,487,792 $ 2,488,162 Commercial and industrial — — 2,139 2,139 739,762 741,901 Commercial real estate — — — — 1,322,865 1,322,865 Loans held-for-investment $ 280 $ 90 $ 2,139 $ 2,509 $ 4,550,419 $ 4,552,928 December 31, 2017 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Total Private banking $ 1,266 $ — $ — $ 1,266 $ 2,264,471 $ 2,265,737 Commercial and industrial — — — — 667,684 667,684 Commercial real estate 1,849 — — 1,849 1,248,974 1,250,823 Loans held-for-investment $ 3,115 $ — $ — $ 3,115 $ 4,181,129 $ 4,184,244 Non-Performing and Impaired Loans Management monitors the delinquency status of the loan portfolio on a monthly basis. Loans are considered non-performing when interest and principal were 90 days or more past due or management has determined that it is probable the borrower is unable to meet payments as they become due. The risk of loss is generally highest for non-performing loans. Management determines loans to be impaired when, based upon current information and events, it is probable that the loan will not be repaid according to the original contractual terms of the loan agreement, including both principal and interest, or if a loan is designated as a TDR. Refer to Note 1, Summary of Significant Accounting Policies , for the Company’s policy on evaluating loans for impairment and interest income. The following tables present the Company’s investment in loans considered to be impaired and related information on those impaired loans: As of and for the Six Months Ended June 30, 2018 (Dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With a related allowance recorded: Private banking $ 298 $ 477 $ 298 $ 328 $ — Commercial and industrial 2,139 2,485 2,139 2,139 — Commercial real estate — — — — — Total with a related allowance recorded 2,437 2,962 2,437 2,467 — Without a related allowance recorded: Private banking — — — — — Commercial and industrial 3,217 5,072 — 3,321 112 Commercial real estate — — — — — Total without a related allowance recorded 3,217 5,072 — 3,321 112 Total: Private banking 298 477 298 328 — Commercial and industrial 5,356 7,557 2,139 5,460 112 Commercial real estate — — — — — Total $ 5,654 $ 8,034 $ 2,437 $ 5,788 $ 112 As of and for the Twelve Months Ended December 31, 2017 (Dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With a related allowance recorded: Private banking $ 368 $ 541 $ 368 $ 438 $ — Commercial and industrial 2,815 3,135 2,139 3,067 — Commercial real estate — — — — — Total with a related allowance recorded 3,183 3,676 2,507 3,505 — Without a related allowance recorded: Private banking — — — — — Commercial and industrial 3,371 5,330 — 4,224 146 Commercial real estate — — — — — Total without a related allowance recorded 3,371 5,330 — 4,224 146 Total: Private banking 368 541 368 438 — Commercial and industrial 6,186 8,465 2,139 7,291 146 Commercial real estate — — — — — Total $ 6,554 $ 9,006 $ 2,507 $ 7,729 $ 146 Impaired loans as of June 30, 2018 and December 31, 2017 , were $5.7 million and $6.6 million , respectively. There was no interest income recognized on impaired loans that were also on non-accrual status for the six months ended June 30, 2018 , and the twelve months ended December 31, 2017 . As of June 30, 2018 and December 31, 2017 , there were no loans 90 days or more past due and still accruing interest income. Impaired loans were evaluated using a discounted cash flow method or based on the fair value of the collateral less estimated selling costs. Based on those evaluations there were specific reserves totaling $2.4 million and $2.5 million as of June 30, 2018 and December 31, 2017 . The following tables present the allowance for loan losses and recorded investment in loans by class: June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Allowance for loan losses: Individually evaluated for impairment $ 298 $ 2,139 $ — $ 2,437 Collectively evaluated for impairment 1,259 6,647 4,978 12,884 Total allowance for loan losses $ 1,557 $ 8,786 $ 4,978 $ 15,321 Loans held-for-investment: Individually evaluated for impairment $ 298 $ 5,356 $ — $ 5,654 Collectively evaluated for impairment 2,487,864 736,545 1,322,865 4,547,274 Loans held-for-investment $ 2,488,162 $ 741,901 $ 1,322,865 $ 4,552,928 December 31, 2017 (Dollars in thousands) Private Commercial Commercial Total Allowance for loan losses: Individually evaluated for impairment $ 368 $ 2,139 $ — $ 2,507 Collectively evaluated for impairment 1,209 5,904 4,797 11,910 Total allowance for loan losses $ 1,577 $ 8,043 $ 4,797 $ 14,417 Loans held-for-investment: Individually evaluated for impairment $ 368 $ 6,186 $ — $ 6,554 Collectively evaluated for impairment 2,265,369 661,498 1,250,823 4,177,690 Loans held-for-investment $ 2,265,737 $ 667,684 $ 1,250,823 $ 4,184,244 Troubled Debt Restructuring The following table provides additional information on the Company’s loans designated as troubled debt restructurings: (Dollars in thousands) June 30, December 31, Aggregate recorded investment of impaired loans with terms modified through a troubled debt restructuring: Performing loans accruing interest $ 3,217 $ 3,371 Non-accrual loans 2,437 3,183 Total troubled debt restructurings $ 5,654 $ 6,554 There were unused commitments of $706,000 and $708,000 on loans designated as troubled debt restructurings as of June 30, 2018 and December 31, 2017 , respectively. The modifications made to restructured loans typically consist of an extension of the payment terms or the deferral of principal payments. There was a loan totaling $186,000 modified as a TDR within twelve months of the corresponding balance sheet date with a payment default during the six months ended June 30, 2018 , and no loans modified as a TDR within twelve months of the corresponding balance sheet date with a payment default during the six months ended June 30, 2017 . There were no loans newly designated as TDRs during six months ended June 30, 2018 and 2017 . Other Real Estate Owned As of June 30, 2018 and December 31, 2017 , the balance of the other real estate owned portfolio was $3.6 million and $3.6 million , respectively. There were no residential mortgage loans in the process of foreclosure as of June 30, 2018 .

Deposits

Deposits	6 Months Ended
	Jun. 30, 2018
Deposits [Abstract]
DEPOSITS	DEPOSITS As of June 30, 2018 and December 31, 2017 , deposits were comprised of the following: Interest Rate Weighted Average Balance (Dollars in thousands) June 30, June 30, December 31, June 30, December 31, Demand and savings accounts: Noninterest-bearing checking accounts — — — $ 247,705 $ 248,092 Interest-bearing checking accounts 0.05 to 2.49% 1.95% 1.42% 612,501 455,341 Money market deposit accounts 0.10 to 2.90% 1.82% 1.37% 2,494,927 2,289,789 Total demand and savings accounts 3,355,133 2,993,222 Certificates of deposit 1.10 to 3.22% 2.10% 1.40% 1,086,069 994,389 Total deposits $ 4,441,202 $ 3,987,611 Weighted average rate on interest-bearing accounts 1.91% 1.38% As of June 30, 2018 and December 31, 2017 , the Bank had total brokered deposits of $496.6 million and $1.07 billion , respectively. Reciprocal deposits through Certificate of Deposit Account Registry Service ® (“CDARS ® ”) and Insured Cash Sweep ® (“ICS ® ”) totaled $655.8 million and $627.5 million as of June 30, 2018 and December 31, 2017 , respectively. As of December 31, 2017 , these reciprocal deposits were included in the total brokered deposits above, however were considered non-brokered as of June 30, 2018 , resulting from recent legislation. As of June 30, 2018 and December 31, 2017 , certificates of deposit with balances of $100,000 or more, excluding brokered deposits, totaled $472.4 million and $440.2 million , respectively. As of June 30, 2018 and December 31, 2017 , certificates of deposit with balances of $250,000 or more, excluding brokered deposits, totaled $173.1 million and $191.4 million . The contractual maturity of certificates of deposit was as follows: (Dollars in thousands) June 30, December 31, 12 months or less $ 849,394 $ 874,733 12 months to 24 months 159,786 96,766 24 months to 36 months 76,889 22,890 Total $ 1,086,069 $ 994,389 Interest expense on deposits was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Interest-bearing checking accounts $ 2,576 $ 759 $ 4,198 $ 1,121 Money market deposit accounts 9,722 5,150 17,834 9,248 Certificates of deposit 4,398 2,587 8,065 4,840 Total interest expense on deposits $ 16,696 $ 8,496 $ 30,097 $ 15,209

Borrowings

Borrowings	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
BORROWINGS	BORROWINGS As of June 30, 2018 and December 31, 2017 , borrowings were comprised of the following: June 30, 2018 December 31, 2017 (Dollars in thousands) Interest Rate Ending Balance Maturity Date Interest Rate Ending Balance Maturity Date FHLB borrowings: Issued 6/29/2018 2.05% $ 80,000 7/2/2018 $ — Issued 6/29/2018 2.20% 100,000 10/1/2018 — Issued 4/9/2018 2.01% 50,000 7/9/2018 — Issued 12/29/2017 — 1.57% 195,000 1/2/2018 Issued 12/29/2017 — 1.66% 100,000 3/29/2018 Line of credit borrowings — 4.56% 6,200 12/28/2018 Subordinated notes payable (net of debt issuance costs of $186 and $287) 5.75% 34,814 7/1/2019 5.75% 34,713 7/1/2019 Total borrowings, net $ 264,814 $ 335,913 The Bank’s FHLB borrowing capacity is based on the collateral value of certain securities held in safekeeping at the FHLB and loans pledged to the FHLB. The Bank submits a quarterly Qualified Collateral Report (“QCR”) to the FHLB to update the value of the loans pledged. As of June 30, 2018 , the Bank’s borrowing capacity is based on the information provided in the March 31, 2018 , QCR filing. As of June 30, 2018 , the Bank had securities held in safekeeping at the FHLB with a fair value of $3.7 million , combined with pledged loans of $1.09 billion , for a gross borrowing capacity of $776.7 million , of which $230.0 million was outstanding in advances. As of December 31, 2017 , there was $295.0 million outstanding in advances from the FHLB. When the Bank borrows from the FHLB, interest is charged at the FHLB’s posted rates at the time of the borrowing. The Bank maintains an unsecured line of credit of $10.0 million with M&T Bank and an unsecured line of credit of $20.0 million with Texas Capital Bank. As of June 30, 2018 , the full amount of these established lines were available to the Bank. In addition, the Bank maintains a $2.0 million unsecured line of credit with PNC Bank for private label credit card facilities for certain commercial clients of the Bank. The holding company maintains an unsecured line of credit of $25.0 million , with Texas Capital Bank, of which the full amount was available as of June 30, 2018 . In June 2014, the Company completed a private placement of subordinated notes payable, raising $35.0 million . The subordinated notes have a term of 5 years at a fixed rate of 5.75% . The proceeds qualified as Tier 2 capital for the holding company, under federal regulatory capital rules. Interest expense on borrowings was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 FHLB borrowings $ 1,743 $ 1,016 $ 2,890 $ 1,570 Line of credit borrowings — 16 52 16 Subordinated notes payable 554 554 1,108 1,108 Total interest expense on borrowings $ 2,297 $ 1,586 $ 4,050 $ 2,694

Stock Transactions

Stock Transactions	6 Months Ended
	Jun. 30, 2018
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
STOCK TRANSACTIONS	STOCK TRANSACTIONS In March 2018, the Company completed the issuance and sale of a registered, underwritten public offering of 1,400,000 depositary shares, each representing a 1/40th interest in a share of its 6.75% Fixed-to-Floating Rate Series A Non-Cumulative Perpetual Preferred Stock, no par value (the “Series A Preferred Stock”), with a liquidation preference of $1,000 per share (equivalent to $25 per depository share). In addition, the Company granted the underwriters an option to purchase additional depositary shares of 210,000 which was exercised. The Company received net proceeds of $38.4 million from the sale of 40,250 shares of its Series A Preferred Stock (equivalent to 1,610,000 depositary shares), after deducting underwriting discounts, commissions and direct offering expenses. The preferred stock provides Tier 1 capital for the holding company, under federal regulatory capital rules. When, as, and if declared by the board of directors of the Company, dividends will be payable on the Series A Preferred Stock from the date of issuance to, but excluding April 1, 2023, at a rate of 6.75% per annum, payable quarterly, in arrears, and from and including April 1, 2023, dividends will accrue and be payable at a floating rate equal to three-month LIBOR plus a spread of 398.5 basis points per annum, payable quarterly, in arrears. The Company may redeem the Series A Preferred Stock at its option, subject to regulatory approval, on or after April 1, 2023, as described in the prospectus supplement relating to the offering filed with the SEC on March 19, 2018. On April 27, 2018 , the board of directors declared a dividend payable of approximately $762,000 , or $0.47 per depositary share, on its Series A Non-Cumulative Perpetual Preferred Stock, which is payable on July 2, 2018 , to preferred shareholders of record as of the close of business on June 15, 2018 . Under authorization by the Board of Directors, the Company was permitted to repurchase its common stock up to prescribed amounts, of which $2.5 million remained available as of June 30, 2018 . During the six months ended June 30, 2018 , the Company repurchased a total of 97,031 shares for approximately $2.5 million , at an average cost of $25.37 per share, which are held as treasury stock. During the six months ended June 30, 2017 , the Company repurchased a total of 174,603 shares for approximately $4.1 million , at an average cost of $23.60 per share, which are held as treasury stock. The tables below show the changes in the Company’s preferred and common shares outstanding during the periods indicated: Number of Number of Balance, December 31, 2016 — 28,415,654 Issuance of restricted common stock — 324,675 Exercise of stock options — 100,000 Purchase of treasury stock — (174,603 ) Balance, June 30, 2017 — 28,665,726 Balance, December 31, 2017 — 28,591,101 Issuance of preferred stock 40,250 — Issuance of restricted common stock — 389,113 Forfeitures of restricted common stock — (22,000 ) Exercise of stock options — 86,700 Purchase of treasury stock — (97,031 ) Balance, June 30, 2018 40,250 28,947,883

Regulatory Capital

Regulatory Capital	6 Months Ended
	Jun. 30, 2018
Regulatory Capital Requirements [Abstract]
REGULATORY CAPITAL	REGULATORY CAPITAL The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory – and possibly additional discretionary – actions by regulators that, if undertaken, could have a direct material effect on the Company’s and the Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of the Company’s and the Bank’s assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The Company’s and the Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weighting and other factors. Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth in the tables below) of Common Equity Tier 1 (“CET 1”), Tier 1 and Total risk-based capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier 1 capital to average assets (as defined). As of June 30, 2018 and December 31, 2017 , TriState Capital Holdings, Inc. and TriState Capital Bank exceeded all capital adequacy requirements to which they were subjected. Financial depository institutions are categorized as well capitalized if they meet minimum capital ratios as set forth in the tables below. The Bank exceeded the capital ratios necessary to be well capitalized under the regulatory framework for prompt corrective action. There have been no conditions or events since the filing of the most recent Call Report that management believes have changed the Bank’s capital, as presented in the tables below. Basel III, which began phasing in on January 1, 2015, has replaced the regulatory capital rules for the Company and the Bank. The Basel III final rules required new minimum capital ratio standards, established a new common equity tier 1 to total risk-weighted assets ratio, subjected banking organizations to certain limitations on capital distributions and discretionary bonus payments, and established a new standardized approach for risk weightings. The final rules subject a banking organization to certain limitations on capital distributions and discretionary bonus payments to executive officers if the organization does not maintain a capital conservation buffer of risk-based capital ratios in an amount greater than 2.5% of its total risk-weighted assets. The implementation of the capital conservation buffer began on January 1, 2016, at 0.625% , and will be phased in over a four -year period (increasing by that amount ratably on each subsequent January 1, until it reaches 2.5% on January 1, 2019). As of June 30, 2018 and December 31, 2017 , the capital conservation buffer was 1.875% and 1.25% , respectively, in addition to the minimum capital adequacy levels in the tables below. Thus, both the Company and the Bank were above the levels required to avoid limitations on capital distributions and discretionary bonus payments. The following tables set forth certain information concerning the Company’s and the Bank’s regulatory capital as of June 30, 2018 and December 31, 2017 : June 30, 2018 Actual For Capital Adequacy Purposes To be Well Capitalized Under Prompt Corrective Action Provisions (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Total risk-based capital ratio Company $ 402,817 12.66 % $ 254,606 8.00 % N/A N/A Bank $ 405,480 12.82 % $ 252,976 8.00 % $ 316,220 10.00 % Tier 1 risk-based capital ratio Company $ 383,895 12.06 % $ 190,954 6.00 % N/A N/A Bank $ 391,440 12.38 % $ 189,732 6.00 % $ 252,976 8.00 % Common equity tier 1 risk-based capital ratio Company $ 348,211 10.94 % $ 143,216 4.50 % N/A N/A Bank $ 391,440 12.38 % $ 142,299 4.50 % $ 205,543 6.50 % Tier 1 leverage ratio Company $ 383,895 7.68 % $ 199,902 4.00 % N/A N/A Bank $ 391,440 7.87 % $ 199,077 4.00 % $ 248,846 5.00 % December 31, 2017 Actual For Capital Adequacy Purposes To be Well Capitalized Under Prompt Corrective Action Provisions (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Total risk-based capital ratio Company $ 343,758 11.72 % $ 234,576 8.00 % N/A N/A Bank $ 348,378 11.99 % $ 232,392 8.00 % $ 290,490 10.00 % Tier 1 risk-based capital ratio Company $ 326,594 11.14 % $ 175,932 6.00 % N/A N/A Bank $ 337,656 11.62 % $ 174,294 6.00 % $ 232,392 8.00 % Common equity tier 1 risk-based capital ratio Company $ 326,594 11.14 % $ 131,949 4.50 % N/A N/A Bank $ 337,656 11.62 % $ 130,720 4.50 % $ 188,818 6.50 % Tier 1 leverage ratio Company $ 326,594 7.25 % $ 180,090 4.00 % N/A N/A Bank $ 337,656 7.55 % $ 178,979 4.00 % $ 223,723 5.00 %

Earnings Per Common Share

Earnings Per Common Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
EARNINGS PER COMMON SHARE	EARNINGS PER COMMON SHARE The computation of basic and diluted earnings per common share for the periods presented was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands, except per share data) 2018 2017 2018 2017 Net income available to common shareholders $ 13,830 $ 8,421 $ 24,231 $ 15,913 Weighted average common shares outstanding: Basic 27,628,120 27,601,702 27,611,498 27,614,423 Restricted stock - dilutive 741,050 636,596 696,278 594,335 Stock options - dilutive 479,799 547,327 478,412 544,159 Diluted 28,848,969 28,785,625 28,786,188 28,752,917 Earnings per common share: Basic $ 0.50 $ 0.31 $ 0.88 $ 0.58 Diluted $ 0.48 $ 0.29 $ 0.84 $ 0.55 Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Anti-dilutive shares (1) 19,000 — 22,500 — (1) Includes stock options and/or restricted stock not considered for the calculation of diluted EPS as their inclusion would have been anti-dilutive.

Derivatives and Hedging Activit

Derivatives and Hedging Activity	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES AND HEDGING ACTIVITY	DERIVATIVES AND HEDGING ACTIVITY RISK MANAGEMENT OBJECTIVE OF USING DERIVATIVES The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity and credit risk primarily by managing the amount, sources, and duration of its debt funding and through the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts related to certain of the Company’s fixed-rate loan assets and differences in the amount, timing, and duration of the Company's known or expected cash payments related to certain of the Company's FHLB borrowings. The Company also has derivatives that are a result of a service the Company provides to certain qualifying customers while at the same time the Company enters into an offsetting derivative transaction in order to eliminate its interest rate risk exposure resulting from such transactions. FAIR VALUES OF DERIVATIVE INSTRUMENTS ON THE STATEMENTS OF FINANCIAL CONDITION The tables below present the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated statements of financial condition as of June 30, 2018 and December 31, 2017 : Asset Derivatives Liability Derivatives as of June 30, 2018 as of June 30, 2018 (Dollars in thousands) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Interest rate products Other assets $ 2,493 Other liabilities $ — Derivatives not designated as hedging instruments: Interest rate products Other assets 22,424 Other liabilities 22,474 Total Other assets $ 24,917 Other liabilities $ 22,474 Asset Derivatives Liability Derivatives as of December 31, 2017 as of December 31, 2017 (Dollars in thousands) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Interest rate products Other assets $ 1,650 Other liabilities $ 9 Derivatives not designated as hedging instruments: Interest rate products Other assets 12,111 Other liabilities 12,069 Total Other assets $ 13,761 Other liabilities $ 12,078 The following tables show the impact legally enforceable master netting agreements had on the Company’s derivative financial instruments as of June 30, 2018 and December 31, 2017 : Offsetting of Derivative Assets Gross Amounts of Recognized Assets Gross Amounts Offset in the Statement of Financial Position Net Amounts of Assets Gross Amounts Not Offset in the Statement of Financial Position Net Amount (Dollars in thousands) Financial Instruments Cash Collateral Received June 30, 2018 $ 24,917 $ — $ 24,917 $ (3,137 ) $ — $ 21,780 December 31, 2017 $ 13,761 $ — $ 13,761 $ (5,677 ) $ — $ 8,084 Offsetting of Derivative Liabilities Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Statement of Financial Position Net Amounts of Liabilities Gross Amounts Not Offset in the Statement of Financial Position Net Amount (Dollars in thousands) Financial Instruments Cash Collateral Posted June 30, 2018 $ 22,474 $ — $ 22,474 $ (3,137 ) $ — $ 19,337 December 31, 2017 $ 12,078 $ — $ 12,078 $ (5,677 ) $ (124 ) $ 6,277 FAIR VALUE HEDGES OF INTEREST RATE RISK The Company is exposed to changes in the fair value of certain of its fixed-rate obligations due to changes in benchmark interest rates, which relate predominantly to LIBOR. Interest rate swaps designated as fair value hedges involve the receipt of variable-rate payments from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. As of June 30, 2018 , the Company no longer had interest rate swaps that were designated as fair value hedges of interest rate risk associated with the Company’s fixed-rate loan assets. For the derivatives that were designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings by applying the “fair value long haul” method. The Company includes the gain or loss on the hedged items in the same line item as the offsetting loss or gain on the related derivatives. The table below presents the effect of the Company’s fair value hedge instruments in the consolidated statements of income: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Derivatives designated as hedging instruments: Location of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Interest rate products Interest income $ — $ (16 ) $ (9 ) $ (31 ) Interest rate products Non-interest income — 1 — 3 Total $ — $ (15 ) $ (9 ) $ (28 ) CASH FLOW HEDGES OF INTEREST RATE RISK The Company’s objectives in using certain interest rate derivatives are to add stability to net interest income and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. The Company has entered into derivative contracts to hedge the variable cash flows associated with certain FHLB borrowings. These interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company effectively making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income (loss) and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. The Company’s cash flow hedge derivatives did not have any hedge ineffectiveness recognized in earnings during the six months ended June 30, 2018 . Characteristics of the Company’s interest rate derivative transactions designated as cash flow hedges of interest rate risk as of June 30, 2018 were as follows: (Dollars in thousands) Notional Estimated Increase/(Decrease) to Interest Expense in the Next Twelve Months Maturity Date Remaining Term Interest rate products: Issued 6/29/2016 $ 100,000 $ (1,736 ) 6/29/2019 12 Issued 1/8/2018 50,000 (177 ) 1/8/2021 30 Total $ 150,000 $ (1,913 ) The tables below present the effective portion of the Company’s cash flow hedge instruments in the consolidated statements of income and accumulated other comprehensive income: Three Months Ended June 30, Three Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Derivatives designated as hedging instruments: Location of Gain (Loss) Recognized in Income on Derivatives Realized Gain (Loss) Recognized in Income on Derivatives Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivatives Interest rate products Interest expense $ 382 $ 81 $ 340 $ (242 ) Total $ 382 $ 81 $ 340 $ (242 ) Six Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Derivatives designated as hedging instruments: Location of Gain (Loss) Recognized in Income on Derivatives Realized Gain (Loss) Recognized in Income on Derivatives Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivatives Interest rate products Interest expense $ 540 $ 123 $ 1,282 $ (156 ) Total $ 540 $ 123 $ 1,282 $ (156 ) NON-DESIGNATED HEDGES The Company does not use derivatives for trading or speculative purposes. Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain customers. The Company executes interest rate derivatives with its commercial banking customers to facilitate their respective risk management strategies. Those derivatives are simultaneously and economically hedged by offsetting derivatives that the Company executes with a third party, such that the Company eliminates its interest rate exposure resulting from such transactions. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings. As of June 30, 2018 , the Company had derivative transactions with an aggregate notional amount of $1.70 billion related to this program. The table below presents the effect of the Company’s non-designated hedge instruments in the consolidated statements of income: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Derivatives not designated as hedging instruments: Location of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Interest rate products Non-interest income $ (3 ) $ 106 $ 22 $ 12 Total $ (3 ) $ 106 $ 22 $ 12 CREDIT-RISK-RELATED CONTINGENT FEATURES The Company has agreements with each of its derivative counterparties that contain a provision where, if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company has agreements with certain of its derivative counterparties that contain a provision where, if either the Company or the counterparty fails to maintain its status as a well/adequately capitalized institution, then the Company or the counterparty could be required to terminate any outstanding derivative positions and settle its obligations under the agreement. As of June 30, 2018 , the termination value of derivatives for which we had master netting arrangements with the counterparty and in a net liability position was $145,000 , including accrued interest. As of June 30, 2018 , the Company has minimum collateral posting thresholds with certain of its derivative counterparties and has posted collateral of $1.1 million . If the Company had breached any of these provisions as of June 30, 2018 , it could have been required to settle its obligations under the agreements at their termination value.

Disclosures About Fair Value of

Disclosures About Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS	DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS Fair value estimates of financial instruments are based on the present value of expected future cash flows, quoted market prices of similar financial instruments, if available, and other valuation techniques. These valuations are significantly affected by discount rates, cash flow assumptions and risk assumptions used. Therefore, fair value estimates may not be substantiated by comparison to independent markets and are not intended to reflect the proceeds that may be realized in an immediate settlement of instruments. Accordingly, the aggregate fair value amounts presented below do not represent the underlying value of the Company. FAIR VALUE MEASUREMENTS In accordance with U.S. GAAP the Company must account for certain financial assets and liabilities at fair value on a recurring and non-recurring basis. The Company utilizes a three-level fair value hierarchy of valuation techniques to estimate the fair value of its financial assets and liabilities based on whether the inputs to those valuation techniques are observable or unobservable. The fair value hierarchy gives the highest priority to quoted prices with readily available independent data in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable market inputs (Level 3). When various inputs for measurement fall within multiple levels of the fair value hierarchy, the lowest level input that has a significant impact on fair value measurement is used. Financial assets and liabilities are categorized based upon the following characteristics or inputs to the valuation techniques: • Level 1 – Financial assets and liabilities for which inputs are observable and are obtained from reliable quoted prices for identical assets or liabilities in actively traded markets. This is the most reliable fair value measurement and includes, for example, active exchange-traded equity securities. • Level 2 – Financial assets and liabilities for which values are based on quoted prices in markets that are not active or for which values are based on similar assets or liabilities that are actively traded. Level 2 also includes pricing models in which the inputs are corroborated by market data, for example, matrix pricing. • Level 3 – Financial assets and liabilities for which values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. Level 3 inputs include assumptions of a source independent of the reporting entity or the reporting entity’s own assumptions that are supported by little or no market activity or observable inputs. The Company is responsible for the valuation process and as part of this process may use data from outside sources in establishing fair value. The Company performs due diligence to understand the inputs used or how the data was calculated or derived. The Company corroborates the reasonableness of external inputs in the valuation process. RECURRING FAIR VALUE MEASUREMENTS The following tables represent assets and liabilities measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017 : June 30, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets / Financial assets: Debt securities available-for-sale: Corporate bonds $ — $ 98,614 $ — $ 98,614 Trust preferred securities — 18,417 — 18,417 Non-agency collateralized loan obligations — 622 — 622 Agency collateralized mortgage obligations — 36,798 — 36,798 Agency mortgage-backed securities — 21,617 — 21,617 Agency debentures — 10,399 — 10,399 Equity securities 8,630 — — 8,630 Interest rate swaps — 24,917 — 24,917 Total financial assets 8,630 211,384 — 220,014 Financial liabilities: Interest rate swaps — 22,474 — 22,474 Acquisition earn out liability — — 3,138 3,138 Total financial liabilities $ — $ 22,474 $ 3,138 $ 25,612 December 31, 2017 (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets / Financial assets: Debt securities available-for-sale: Corporate bonds $ — $ 61,689 $ — $ 61,689 Trust preferred securities — 18,581 — 18,581 Non-agency collateralized loan obligations — 805 — 805 Agency collateralized mortgage obligations — 38,822 — 38,822 Agency mortgage-backed securities — 18,953 — 18,953 Equity securities 8,635 — — 8,635 Interest rate swaps — 13,761 — 13,761 Total financial assets 8,635 152,611 — 161,246 Financial liabilities: Interest rate swaps — 12,078 — 12,078 Total financial liabilities $ — $ 12,078 $ — $ 12,078 INVESTMENT SECURITIES Generally, debt securities are valued using pricing for similar securities, recently executed transactions, and other pricing models utilizing observable inputs and therefore are classified as Level 2. Equity securities (including mutual funds) are classified as Level 1 because these securities are in actively traded markets. INTEREST RATE SWAPS The fair value of interest rate swaps is estimated using inputs that are observable or that can be corroborated by observable market data and therefore are classified as Level 2. These fair value estimations include primarily market observable inputs such as the forward LIBOR swap curve. ACQUISITION EARN OUT LIABILITY The fair value of the acquisition earn out liability is estimated based on management’s estimate of the projected annualized run-rate revenue of Columbia at December 31, 2016, and therefore, are classified as Level 3. For additional information on the calculation of the earn out, refer to Note 2, Business Combination . NON-RECURRING FAIR VALUE MEASUREMENTS Certain financial assets and financial liabilities are measured at fair value on a non-recurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances, such as when there is evidence of impairment. The following tables represent the balances of assets measured at fair value on a non-recurring basis as of June 30, 2018 and December 31, 2017 : June 30, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets Loans measured for impairment, net $ — $ — $ 3,217 $ 3,217 Other real estate owned — — 3,576 3,576 Total assets $ — $ — $ 6,793 $ 6,793 December 31, 2017 (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets Loans measured for impairment, net $ — $ — $ 4,047 $ 4,047 Other real estate owned — — 3,576 3,576 Total assets $ — $ — $ 7,623 $ 7,623 As of June 30, 2018 and December 31, 2017 , the Company recorded $2.4 million and $2.5 million , respectively, of specific reserves to allowance for loan losses as a result of adjusting the fair value of impaired loans. IMPAIRED LOANS A loan is considered impaired when management determines it is probable that all of the principal and interest due under the original terms of the loan may not be collected or if a loan is designated as a TDR. Impairment is measured based on a discounted cash flows method or the fair value of the underlying collateral less estimated selling costs. Our policy is to obtain appraisals on collateral supporting impaired loans on an annual basis, unless circumstances dictate a shorter time frame. Appraisals are reduced by estimated costs to sell the collateral, and, under certain circumstances, additional factors that may arise and cause us to believe our recoverable value may be less than the independent appraised value. Accordingly, impaired loans are classified as Level 3. The Company measures impairment on all loans as part of the allowance for loan losses. OTHER REAL ESTATE OWNED Real estate owned is comprised of property acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at fair value, less estimated disposition costs, with the fair value being determined by appraisal. Our policy is to obtain appraisals on collateral supporting OREO on an annual basis, unless circumstances dictate a shorter time frame. Appraisals are reduced by estimated costs to sell the collateral, and, under certain circumstances, additional factors that may arise and cause us to believe our recoverable value may be less than the independent appraised value. Accordingly, other real estate owned is classified as Level 3. LEVEL 3 VALUATION The following tables present additional quantitative information about assets measured at fair value on a recurring and non-recurring basis and for which we have utilized Level 3 inputs to determine fair value as of June 30, 2018 and December 31, 2017 : June 30, 2018 (Dollars in thousands) Fair Value Valuation Techniques (1) Significant Unobservable Inputs Weighted Average Multiple/ Acquisition earn out liability $ 3,138 Income approach Run-rate revenue multiple; client retention 1.6 times Loans measured for impairment, net $ 3,217 Discounted cash flow Discount due to restructured nature of operations 6 % Other real estate owned $ 3,576 Appraisal value Discount due to salability conditions 10 % (1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent. December 31, 2017 (Dollars in thousands) Fair Value Valuation Techniques (1) Significant Unobservable Inputs Weighted Average Loans measured for impairment, net $ 676 Appraisal value Discount due to salability conditions — % Loans measured for impairment, net $ 3,371 Discounted cash flow Discount due to restructured nature of operations 6 % Other real estate owned $ 3,576 Appraisal value Discount due to salability conditions 10 % (1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent. FAIR VALUE OF FINANCIAL INSTRUMENTS A summary of the carrying amounts and estimated fair values of financial instruments was as follows: June 30, 2018 December 31, 2017 (Dollars in thousands) Fair Value Carrying Estimated Carrying Estimated Financial assets: Cash and cash equivalents 1 $ 164,367 $ 164,367 $ 156,153 $ 156,153 Debt securities available-for-sale 2 186,467 186,467 138,850 138,850 Debt securities held-to-maturity 2 77,098 77,283 59,275 60,141 Equity securities 1 8,630 8,630 8,635 8,635 Federal Home Loan Bank stock 2 16,479 16,479 13,792 13,792 Loans held-for-investment, net 3 4,537,607 4,540,877 4,169,827 4,167,775 Accrued interest receivable 2 16,187 16,187 13,519 13,519 Investment management fees receivable, net 2 7,835 7,835 7,720 7,720 Bank owned life insurance 2 67,451 67,451 66,593 66,593 Other real estate owned 3 3,576 3,576 3,576 3,576 Interest rate swaps 2 24,917 24,917 13,761 13,761 Financial liabilities: Deposits 2 $ 4,441,202 $ 4,436,176 $ 3,987,611 $ 3,985,883 Borrowings, net 2 264,814 264,670 335,913 336,051 Acquisition earn out liability 3 3,138 3,138 — — Interest rate swaps 2 22,474 22,474 12,078 12,078 During the six months ended June 30, 2018 and 2017 , there were no transfers between fair value Levels 1, 2 or 3. The following methods and assumptions were used to estimate the fair value of each class of financial instruments as of June 30, 2018 and December 31, 2017 : CASH AND CASH EQUIVALENTS The carrying amount approximates fair value. INVESTMENT SECURITIES The fair values of debt securities available-for-sale, debt securities held-to-maturity, trading securities and equity securities are based on quoted market prices for the same or similar securities, recently executed transactions and pricing models . FEDERAL HOME LOAN BANK STOCK The carrying value of our FHLB stock, which is carried at cost, approximates fair value. LOANS HELD-FOR-INVESTMENT The fair value of loans held-for-investment is estimated by discounting the future cash flows using market rates (utilizing both unobservable and certain observable inputs when applicable) at which similar loans would be made to borrowers with similar credit ratings over the estimated remaining maturities. Impaired loans are generally valued at the fair value of the associated collateral. ACCRUED INTEREST RECEIVABLE The carrying amount approximates fair value. INVESTMENT MANAGEMENT FEES RECEIVABLE The carrying amount approximates fair value. BANK OWNED LIFE INSURANCE The fair value of the general account bank owned life insurance is based on the insurance contract net cash surrender value. OTHER REAL ESTATE OWNED Real estate owned is recorded on the date acquired at fair value, less estimated disposition costs, with the fair value being determined by appraisal. DEPOSITS The fair value of demand deposits is the amount payable on demand as of the reporting date, i.e., their carrying amounts. The fair value of fixed maturity deposits is estimated using a discounted cash flow calculation that applies the rates currently offered for deposits of similar remaining maturities. BORROWINGS The fair value of borrowings is calculated by discounting scheduled cash flows through the estimated maturity using period end market rates for borrowings of similar remaining maturities. ACQUISITION EARN OUT LIABILITY The carrying amount of the Columbia acquisition earn out liability approximates fair value. For additional information on the calculation of the earn out, refer to Note 2, Business Combination . INTEREST RATE SWAPS The fair value of interest rate swaps are estimated through the assistance of an independent third party and compared to the fair value determined by the swap counterparty to establish reasonableness. OFF-BALANCE SHEET INSTRUMENTS Fair values for the Company’s off-balance sheet instruments, which consist of lending commitments, standby letters of credit and risk participation agreements related to interest rate swap agreements, are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the counterparties’ credit standing. Management believes that the fair value of these off-balance sheet instruments is not significant.

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following tables show the changes in accumulated other comprehensive income (loss) net of tax, for the periods presented: Three Months Ended June 30, 2018 2017 (Dollars in thousands) Investment Securities Derivatives Total Investment Securities Derivatives Total Balance, beginning of period $ (265 ) $ 1,910 $ 1,645 $ (113 ) $ 1,155 $ 1,042 Change in unrealized holding gains (losses) (567 ) 261 (306 ) 707 (155 ) 552 Gains reclassified from other comprehensive income (1 ) (293 ) (294 ) (155 ) (52 ) (207 ) Net other comprehensive income (loss) (568 ) (32 ) (600 ) 552 (207 ) 345 Balance, end of period $ (833 ) $ 1,878 $ 1,045 $ 439 $ 948 $ 1,387 Six Months Ended June 30, 2018 2017 (Dollars in thousands) Investment Securities Derivatives Total Investment Securities Derivatives Total Balance, beginning of period $ 172 $ 1,074 $ 1,246 $ (297 ) $ 1,127 $ 830 Change in unrealized holding gains (losses) (1,325 ) 983 (342 ) 890 (100 ) 790 Gains reclassified from other comprehensive income (5 ) (414 ) (419 ) (154 ) (79 ) (233 ) Reclassification for equity securities under ASU 2016-01 (see Note 1) 286 — 286 — — — Reclassification for certain income tax effects under ASU 2018-02 (see Note 1) 39 235 274 — — — Net other comprehensive income (loss) (1,005 ) 804 (201 ) 736 (179 ) 557 Balance, end of period $ (833 ) $ 1,878 $ 1,045 $ 439 $ 948 $ 1,387

Contingent Liabilities

Contingent Liabilities	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
CONTINGENT LIABILITIES	CONTINGENT LIABILITIES The Company is not aware of any unasserted claims. In the opinion of management, there are no potential claims that would have a material adverse effect on the Company’s financial position, liquidity or results of operations.

Segments

Segments	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
SEGMENTS	SEGMENTS The Company operates two reportable segments: Bank and Investment Management. • The Bank segment provides commercial banking services to middle-market businesses and private banking services to high-net-worth individuals through the TriState Capital Bank subsidiary. • The Investment Management segment provides advisory and sub-advisory investment management services primarily to institutional investors, mutual funds and individual investors through the Chartwell Investment Partners, LLC subsidiary. It also supports marketing efforts for Chartwell’s proprietary investment products through the Chartwell TSC Securities Corp. subsidiary. The following tables provide financial information for the two segments of the Company as of and for the periods indicated. The information provided under the caption “Parent and Other” represents general operating activity of the Company not considered to be a reportable segment, which includes the parent company activity as well as eliminations and adjustments that are necessary for purposes of reconciliation to the consolidated amounts. (Dollars in thousands) June 30, December 31, Assets: Bank $ 5,143,547 $ 4,691,760 Investment management 89,738 84,714 Parent and other 651 1,423 Total assets $ 5,233,936 $ 4,777,897 Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (Dollars in thousands) Bank Investment Parent Consolidated Bank Investment Parent Consolidated Income statement data: Interest income $ 47,720 $ — $ 64 $ 47,784 $ 32,047 $ — $ 68 $ 32,115 Interest expense 18,440 — 553 18,993 9,515 — 567 10,082 Net interest income (loss) 29,280 — (489 ) 28,791 22,532 — (499 ) 22,033 Provision for loan losses 415 — — 415 516 — — 516 Net interest income (loss) after provision for loan losses 28,865 — (489 ) 28,376 22,016 — (499 ) 21,517 Non-interest income: Investment management fees — 9,743 (57 ) 9,686 — 9,182 (52 ) 9,130 Net gain on the sale and call of debt securities 1 — — 1 241 — — 241 Other non-interest income 2,849 1 (35 ) 2,815 2,341 — — 2,341 Total non-interest income 2,850 9,744 (92 ) 12,502 2,582 9,182 (52 ) 11,712 Non-interest expense: Intangible amortization expense — 502 — 502 — 462 — 462 Other non-interest expense 16,223 8,242 351 24,816 13,688 7,612 22 21,322 Total non-interest expense 16,223 8,744 351 25,318 13,688 8,074 22 21,784 Income (loss) before tax 15,492 1,000 (932 ) 15,560 10,910 1,108 (573 ) 11,445 Income tax expense (benefit) 955 277 (264 ) 968 2,819 425 (220 ) 3,024 Net income (loss) $ 14,537 $ 723 $ (668 ) $ 14,592 $ 8,091 $ 683 $ (353 ) $ 8,421 Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 (Dollars in thousands) Bank Investment Parent Consolidated Bank Investment Parent Consolidated Income statement data: Interest income $ 89,071 $ — $ 129 $ 89,200 $ 60,708 $ — $ 144 $ 60,852 Interest expense 32,990 — 1,157 34,147 16,785 — 1,118 17,903 Net interest income (loss) 56,081 — (1,028 ) 55,053 43,923 — (974 ) 42,949 Provision for loan losses 610 — — 610 759 — — 759 Net interest income (loss) after provision for loan losses 55,471 — (1,028 ) 54,443 43,164 — (974 ) 42,190 Non-interest income: Investment management fees — 18,707 (113 ) 18,594 — 18,578 (108 ) 18,470 Net gain on the sale and call of debt securities 6 — — 6 239 — — 239 Other non-interest income 5,026 1 (36 ) 4,991 4,411 1 — 4,412 Total non-interest income 5,032 18,708 (149 ) 23,591 4,650 18,579 (108 ) 23,121 Non-interest expense: Intangible amortization expense — 963 — 963 — 925 — 925 Other non-interest expense 32,010 15,815 380 48,205 27,293 14,651 73 42,017 Total non-interest expense 32,010 16,778 380 49,168 27,293 15,576 73 42,942 Income (loss) before tax 28,493 1,930 (1,557 ) 28,866 20,521 3,003 (1,155 ) 22,369 Income tax expense (benefit) 3,809 504 (440 ) 3,873 5,747 1,152 (443 ) 6,456 Net income (loss) $ 24,684 $ 1,426 $ (1,117 ) $ 24,993 $ 14,774 $ 1,851 $ (712 ) $ 15,913

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On July 17, 2018 , the board of directors declared a dividend payable of approximately $679,000 , or $0.42 per depositary share, on its Series A Non-Cumulative Perpetual Preferred Stock, which is payable on October 1, 2018 , to preferred shareholders of record as of the close of business on September 14, 2018 .

Basis of Information and Summ26

Basis of Information and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Nature of Operation	NATURE OF OPERATION TriState Capital Holdings, Inc. ( “we,” “us,” “our,” the “holding company,” or the “Company”) is a registered bank holding company pursuant to the Bank Holding Company Act of 1956, as amended. The Company has three wholly owned subsidiaries: TriState Capital Bank (the “Bank”), a Pennsylvania-chartered state bank; Chartwell Investment Partners, LLC (“Chartwell”), a registered investment advisor; and Chartwell TSC Securities Corp. (“CTSC Securities”), a registered broker/dealer. The Bank was established to serve the commercial banking needs of middle-market businesses and private banking needs of high-net-worth individuals. Chartwell provides investment management services primarily to institutional investors, mutual funds and individual investors. CTSC Securities supports marketing efforts for the proprietary investment products provided by Chartwell, including shares of mutual funds advised and/or administered by Chartwell. The Company and the Bank are subject to regulatory examination by the Federal Deposit Insurance Corporation (“FDIC”), the Pennsylvania Department of Banking and Securities, and the Federal Reserve. Chartwell is a registered investment advisor regulated by the Securities and Exchange Commission (“SEC”). CTSC Securities is regulated by the SEC and Financial Industry Regulatory Authority (“FINRA”). The Bank conducts business through its main office located in Pittsburgh, Pennsylvania, as well as its four additional representative offices in Cleveland, Ohio; Philadelphia, Pennsylvania; Edison, New Jersey; and New York, New York. Chartwell conducts business through its office located in Berwyn, Pennsylvania, and CTSC Securities conducts business through its office located in Pittsburgh, Pennsylvania.
Use of estimates	USE OF ESTIMATES The preparation of financial statements in conformity with generally accepted accounting principles (“GAAP”) in the United States of America requires management to make estimates and assumptions that affect the reported amounts of certain assets and liabilities, disclosure of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of related revenue and expense during the reporting period. Although our current estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual conditions could be different than those anticipated in the estimates, which could materially affect the financial results of our operations and financial condition. The material estimates that are particularly susceptible to significant changes relate to the determination of the allowance for loan losses, valuation of goodwill and other intangible assets and its evaluation for impairment, and deferred income taxes and its related recoverability, which are discussed later in this section.
Consolidation	CONSOLIDATION The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, the Bank, Chartwell and CTSC Securities, after elimination of inter-company accounts and transactions. The accounts of the Bank, in turn, include its wholly owned subsidiary, Meadowood Asset Management, LLC (established in 2011 to hold and manage the foreclosed properties for the Bank), after elimination of inter-company accounts and transactions. The unaudited consolidated financial statements of the Company presented herein have been prepared pursuant to rules of the Securities and Exchange Commission for quarterly reports on Form 10-Q and do not include all of the information and note disclosures required by GAAP for a full year presentation. In the opinion of management, all adjustments (consisting of normal, recurring adjustments) and disclosures, considered necessary for the fair presentation of the accompanying consolidated financial statements, have been included. Interim results are not necessarily reflective of the results of the entire year. The accompanying consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto for the fiscal year ended December 31, 2017 , included in the Company’s Annual Report on Form 10-K filed with the SEC on February 23, 2018 .
Cash and cash equivalents	CASH AND CASH EQUIVALENTS For purposes of reporting cash flows, the Company has defined cash and cash equivalents as cash, interest-earning deposits with other institutions, federal funds sold, and short-term investments that have an original maturity of 90 days or less.
Investment securities	INVESTMENT SECURITIES The Company’s investments are classified as either: (1) held-to-maturity – debt securities that the Company intends to hold until maturity and are reported at amortized cost; (2) trading securities – debt securities bought and held principally for the purpose of selling them in the near term and reported at fair value, with unrealized gains and losses included in non-interest income; (3) available-for-sale – debt securities not classified as either held-to-maturity or trading securities and reported at fair value, with unrealized gains and losses reported as a component of accumulated other comprehensive income (loss), on an after-tax basis; or (4) equity securities which are reported at fair value, with unrealized gains and losses included in non-interest income. The cost of securities sold is determined on a specific identification basis. Amortization of premiums and accretion of discounts are recorded as interest income on investments over the estimated life of the security utilizing the level yield method. We evaluate impaired investment securities quarterly to determine if impairments are temporary or other-than-temporary. For impaired debt and equity securities, management first determines whether it intends to sell or if it is more-likely than not that it will be required to sell the impaired securities. This determination considers current and forecasted liquidity requirements, regulatory and capital requirements and securities portfolio management. If the Company intends to sell a security with a fair value below amortized cost or if it is more-likely than not that it will be required to sell such a security before recovery, an other-than-temporary impairment (“OTTI”) charge is recorded through current period earnings for the full decline in fair value below amortized cost. For debt securities that the Company does not intend to sell or it is more likely than not that it will not be required to sell before recovery, an OTTI charge is recorded through current period earnings for the amount of the valuation decline below amortized cost that is attributable to credit losses. The remaining difference between the security’s fair value and amortized cost (that is, the decline in fair value not attributable to credit losses) is recognized in other comprehensive income (loss), in the consolidated statements of comprehensive income and the shareholders’ equity section of the consolidated statements of financial condition, on an after-tax basis. For equity securities an OTTI charge is recorded through current period earnings for the full decline in fair value below cost.
Federal Home Loan Bank stock	FEDERAL HOME LOAN BANK STOCK The Company is a member of the Federal Home Loan Bank of Pittsburgh (“FHLB”). Member institutions are required to invest in FHLB stock. The stock is carried at cost, which approximates its liquidation value, and it is evaluated for impairment based on the ultimate recoverability of the par value. The following matters are considered by management when evaluating the FHLB stock for impairment: the ability of the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance of the FHLB; the impact of legislative and regulatory changes on the institution and its customer base; and the Company’s intent and ability to hold its FHLB stock for the foreseeable future. Management believes the Company’s holdings in the FHLB stock were recoverable at par value, as of June 30, 2018 and December 31, 2017 . Cash and stock dividends are reported as interest income on investments, in the consolidated statements of income.
Loans	LOANS Loans and leases held-for-investment are stated at unpaid principal balances, net of deferred loan fees and costs. Loans held-for-sale are stated at the lower of cost or fair value. Interest income on loans is accrued at the contractual rate on the principal amount outstanding and includes the amortization of deferred loan fees and costs. Deferred loan fees and costs are amortized to interest income over the estimated life of the loan, taking into consideration scheduled payments and prepayments. The Company considers a loan to be a Troubled Debt Restructuring (“TDR”) when there is a concession made to a financially troubled borrower without adequate consideration provided to the Company. Once a loan is deemed to be a TDR, the Company considers whether the loan should be placed on non-accrual status. In assessing accrual status, the Company considers the likelihood that repayment and performance according to the original contractual terms will be achieved, as well as the borrower’s historical payment performance. A loan is designated and reported as a TDR until such loan is either paid-off or sold, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is fully expected that the remaining principal and interest will be collected according to the restructured agreement. The recognition of interest income on a loan is discontinued when, in management’s opinion, it is probable the borrower is unable to meet payments as they become due or when the loan becomes 90 days past due, whichever occurs first. All accrued and unpaid interest on such loans is reversed. Such interest ultimately collected is applied to reduce principal if there is doubt about the collectability of principal. If a borrower brings a loan current for which accrued interest has been reversed, then the recognition of interest income on the loan is resumed, once the loan has been current for a period of six consecutive months or greater. The Company is a party to financial instruments with off-balance sheet risk (commitments to extend credit) in the normal course of business to meet the financing needs of its customers. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the commitment. Commitments generally have fixed expiration dates or other termination clauses (i.e. demand loans) and may require payment of a fee. Since some of the commitments are expected to expire without being drawn upon, the unfunded commitment amount does not necessarily represent future cash requirements. The Company evaluates each customer’s credit worthiness on a case-by-case basis using the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. The amount of collateral obtained, if deemed necessary by the Company upon extension of a commitment, is based on management’s credit evaluation of the borrower.
Other real estate owned	OTHER REAL ESTATE OWNED Real estate owned, other than bank premises, is recorded at fair value less estimated selling costs. Fair value is determined based on an independent appraisal. Expenses related to holding the property are charged against earnings when incurred. Depreciation is not recorded on other real estate owned (“OREO”) properties.
Allowance for loan losses	ALLOWANCE FOR LOAN LOSSES The allowance for loan losses is established through provisions for loan losses that are recorded in the consolidated statements of income. Loans are charged off against the allowance for loan losses when management believes that the principal is uncollectible. If, at a later time, amounts are recovered with respect to loans previously charged off, the recovered amount is credited to the allowance for loan losses. In management’s judgment, the allowance was appropriate to cover probable losses inherent in the loan portfolio as of June 30, 2018 and December 31, 2017 . Management’s judgment takes into consideration general economic conditions, diversification and seasoning of the loan portfolio, historic loss experience, identified credit problems, delinquency levels and adequacy of collateral. Although management believes it has used the best information available to it in making such determinations, and that the present allowance for loan losses is adequate, future adjustments to the allowance may be necessary, and net income may be adversely affected if circumstances differ substantially from the assumptions used in determining the level of the allowance. In addition, as an integral part of their periodic examination, certain regulatory agencies review the adequacy of the Bank’s allowance for loan losses and may direct the Bank to make additions to the allowance based on their judgments about information available to them at the time of their examination. The two components of the allowance for loan losses represent estimates of general reserves based upon Accounting Standards Codification (“ASC”) Topic 450, Contingencies; and specific reserves based upon ASC Topic 310, Receivables . ASC Topic 450 applies to homogeneous loan pools such as commercial loans, consumer lines of credit and residential mortgages that are not individually evaluated for impairment. ASC Topic 310 is applied to commercial and consumer loans that are individually evaluated for impairment. In management’s opinion, a loan is impaired, based upon current information and events, when it is probable that the loan will not be repaid according to its original contractual terms, including both principal and interest, or if a loan is designated as a TDR. Management performs individual assessments of impaired loans to determine the existence of loss exposure based upon a discounted cash flows method or where a loan is collateral dependent, based upon the fair value of the collateral less estimated selling costs. In estimating probable loan loss of general reserves management considers numerous factors, including historical charge-offs and subsequent recoveries. Management also considers, but is not limited to, qualitative factors that influence our credit quality, such as delinquency and non-performing loan trends, changes in loan underwriting guidelines and credit policies, the results of internal loan reviews, etc. Finally, management considers the impact of changes in current local and regional economic conditions in the markets that we serve. Management bases the computation of the allowance for loan losses of general reserves on two factors: the primary factor and the secondary factor. The primary factor is based on the inherent risk identified by management within each of the Company’s three loan portfolios based on the historical loss experience of each loan portfolio and the loss emergence period. Management has developed a methodology that is applied to each of the three primary loan portfolios: private banking, commercial and industrial, and commercial real estate. As the loan loss history, mix, and risk ratings of each loan portfolio change, the primary factor adjusts accordingly. The allowance for loan losses related to the primary factor is based on our estimates as to probable losses for each loan portfolio. The secondary factor is intended to capture risks related to events and circumstances that management believes have an impact on the performance of the loan portfolio. Although this factor is more subjective in nature, the methodology focuses on internal and external trends in pre-specified categories (risk factors) and applies a quantitative percentage that drives the secondary factor. There are nine risk factors and each risk factor is assigned a reserve level based on management’s judgment as to the probable impact of each risk factor on each loan portfolio and is monitored on a quarterly basis. As the trend in any risk factor changes, a corresponding change occurs in the reserve associated with each respective risk factor, such that the secondary factor remains current to changes in each loan portfolio. The Company also maintains a reserve for losses on unfunded commitments. This reserve is reflected as a component of other liabilities and, in management’s judgment, is sufficient to cover probable losses inherent in the commitments. Management tracks the level and trends in unused commitments and takes into consideration the same factors as those considered for purposes of the allowance for loan losses on outstanding loans.
Investment management fees	INVESTMENT MANAGEMENT FEES The Company recognizes investment management fee revenue when the advisory services are performed. Fees are based on assets under management and are calculated pursuant to individual client contracts. Investment management fees are generally received on a quarterly basis. Certain incremental costs incurred to acquire some of our investment management contracts are deferred and amortized to non-interest expense over the estimated life of the contract. Investment management fees receivable represent amounts due for contractual investment management services provided to the Company’s clients, primarily institutional investors, mutual funds and individual investors. Management performs credit evaluations of its customers’ financial condition when it is deemed to be necessary, and does not require collateral. The Company provides an allowance for uncollectible accounts based on specifically identified receivables. Bad debt expense is recorded to other non-interest expense on the consolidated statements of income and the allowance for uncollectible accounts is recorded to investment management fees receivable, net on the consolidated statements of financial position. Investment management fees receivable are considered delinquent when payment is not received within contractual terms and are charged off against the allowance for uncollectible accounts when management determines that recovery is unlikely and the Company ceases its collection efforts.
Business combinations	BUSINESS COMBINATIONS The Company accounts for business combinations using the acquisition method of accounting. Under this method of accounting, the acquired company’s net assets are recorded at fair value as of the date of acquisition, and the results of operations of the acquired company are combined with our results from that date forward. Acquisition costs are expensed when incurred. The difference between the purchase price and the fair value of the net assets acquired (including identified intangibles) is recorded as goodwill. The change in the initial estimate of any contingent earn out amounts is reflected in the consolidated statements of income.
Goodwill and other intangible assets	GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill represents the excess of the cost of an acquisition over the fair value of the net assets acquired. Goodwill is not amortized and is subject to at least annual assessments for impairment by applying a fair value based test. The Company reviews goodwill annually and again at any quarter-end if a material event occurs during the quarter that may affect goodwill. If goodwill testing is required, an assessment of qualitative factors can be completed before performing the two step goodwill impairment test. If an assessment of qualitative factors determines it is more likely than not that the fair value of a reporting unit exceeds its carrying amount, then the two step goodwill impairment test is not required. Goodwill is evaluated for potential impairment by determining if the fair value has fallen below carrying value. Other intangible assets represent purchased assets that may lack physical substance but can be distinguished from goodwill because of contractual or other legal rights. The Company has determined that certain of its acquired mutual fund client relationships meet the criteria to be considered indefinite-lived assets because the Company expects both the renewal of these contracts and the cash flows generated by these assets to continue indefinitely. Accordingly, the Company does not amortize these intangible assets, but instead reviews these assets annually or more frequently whenever events or circumstances occur indicating that the recorded indefinite-lived assets may be impaired. Each reporting period, the Company assesses whether events or circumstances have occurred which indicate that the indefinite life criteria are no longer met. If the indefinite life criteria are no longer met, the Company would assess whether the carrying value of these assets exceeds its fair value, an impairment loss would be recorded in an amount equal to any such excess and these assets would be reclassified to finite-lived. Other intangible assets that the Company has determined to have finite lives, such as trade name, client lists and non-compete agreements are amortized over their estimated useful lives. These finite-lived intangible assets are amortized on a straight-line basis over their estimated useful lives, which range from four to twenty-five years. Finite-lived intangibles are evaluated for impairment on an annual basis or more frequently whenever events or circumstances occur indicating that the carrying amount may not be recoverable.
Office properties and equipment	OFFICE PROPERTIES AND EQUIPMENT Office properties and equipment are stated at cost less accumulated depreciation. Depreciation is computed on the straight-line method over the estimated useful lives of the related assets, except for leasehold improvements which are amortized over the terms of the respective leases or the estimated useful lives of the improvements, whichever is shorter. Estimated useful lives are dependent upon the nature and condition of the asset and range from three to ten years. Repairs and maintenance are charged to expense as incurred, while improvements that extend the useful life are capitalized and depreciated to non-interest expense over the estimated remaining life of the asset. When the Bank receives an allowance for improvements to be made to one of its leased offices, we record the allowance as a deferred liability and recognize it as a reduction to rent expense over the life of the related lease.
Bank owned life insurance	BANK OWNED LIFE INSURANCE Bank owned life insurance (“BOLI”) policies on certain officers and employees are recorded at net cash surrender value on the consolidated statements of financial condition. Upon termination of the BOLI policy the Company receives the cash surrender value. BOLI benefits are payable to the Company upon death of the insured. Changes in net cash surrender value are recognized as non-interest income in the consolidated statements of income.
Deposits	DEPOSITS Deposits are stated at principal outstanding. Interest on deposits is accrued and charged to interest expense daily and is paid or credited in accordance with the terms of the respective accounts.
Borrowings	BORROWINGS The Company records FHLB advances, line of credit borrowings and subordinated notes payable at their principal amount net of debt issuance costs. Interest expense is recognized based on the coupon rate of the obligations. Costs associated with the acquisition of subordinated notes payable are amortized to interest expense over the expected term of the borrowing.
Earnings per common share	EARNINGS PER COMMON SHARE Earnings per common share (“EPS”) is computed using the two-class method, where net income is reduced by dividends declared on our preferred stock to derive net income available to common shareholders. Basic EPS is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period, excluding non-vested restricted stock. Diluted EPS reflects the potential dilution upon the exercise of stock options and the vesting of restricted stock awards granted utilizing the treasury stock method.
Income taxes	INCOME TAXES The Company utilizes the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the tax effects of differences between the financial statement and tax basis of assets and liabilities. Deferred tax assets and liabilities are measured using the enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities with regard to a change in tax rates is recognized in income in the period that includes the enactment date. Management assesses all available evidence to determine the amount of deferred tax assets that are more-likely-than-not to be realized. The available evidence used in connection with the assessments includes taxable income in prior periods, projected taxable income, potential tax planning strategies and projected reversals of deferred tax items. These assessments involve a degree of subjectivity and may undergo significant change. Changes to the evidence used in the assessments could have a material adverse effect on the Company’s results of operations in the period in which they occur. The Company considers uncertain tax positions that it has taken or expects to take on a tax return. Any interest and penalties related to unrecognized tax benefits would be recognized in income tax expense in the consolidated statements of income.
Derivatives and hedging activities	DERIVATIVES AND HEDGING ACTIVITIES All derivatives are evaluated at inception as to whether or not they are hedging or non-hedging activities, and appropriate documentation is maintained to support the final determination. All derivatives are recognized as either assets or liabilities on the consolidated statements of financial condition and measured at fair value. For derivatives designated as fair value hedges, changes in the fair value of the derivative and the hedged item related to the hedged risk are recognized in earnings. Any hedge ineffectiveness would be recognized in the income statement line item pertaining to the hedged item. For derivatives designated as cash flow hedges, changes in fair value of the effective portion of the cash flow hedges are reported in accumulated other comprehensive income (loss). When the cash flows associated with the hedged item are realized, the gain or loss included in accumulated other comprehensive income (loss) is recognized in the consolidated statements of income. The Company also has interest rate derivative positions that are not designated as hedging instruments. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings.
Fair value measurement	FAIR VALUE MEASUREMENT Fair value is defined as the exchange price that would be received to sell an asset or paid to transfer a liability in a principal or most advantageous market for the asset or liability in an orderly transaction between market participants as of the measurement date, using assumptions market participants would use when pricing an asset or liability. An orderly transaction assumes exposure to the market for a customary period for marketing activities prior to the measurement date and not a forced liquidation or distressed sale. Fair value measurement and disclosure guidance provides a three-level hierarchy that prioritizes the inputs of valuation techniques used to measure fair value into three broad categories: • Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities. • Level 2 – Observable inputs such as quoted prices for similar assets and liabilities in active markets, quoted prices for similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data. • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies, and similar techniques that use significant unobservable inputs. Fair value must be recorded for certain assets and liabilities every reporting period on a recurring basis or under certain circumstances, on a non-recurring basis.
Stock-based compensation	STOCK-BASED COMPENSATION The Company accounts for its stock-based compensation awards based on estimated fair values of share-based awards made to employees and directors. Compensation cost for all share-based payments is based on the estimated grant-date fair value. The value of the portion of the award that is ultimately expected to vest is included in stock-based compensation expense in the consolidated statements of income and recorded as a component of additional paid-in capital, for equity-based awards. Compensation expense for all awards is recognized on a straight-line basis over the requisite service period for the entire grant.
Accumulated other comprehensive income (loss)	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Unrealized holding gains and the non-credit component of unrealized losses on the Company’s debt securities available-for-sale are included in accumulated other comprehensive income (loss), net of applicable income taxes. Also included in accumulated other comprehensive income (loss) is the remaining unamortized balance of the unrealized holding gains (non-credit losses), net of applicable income taxes, that existed on the transfer date for debt securities reclassified into the held-to-maturity category from the available-for-sale category. Unrealized holding gains (losses) on the effective portion of the Company’s cash flow hedge derivatives are included in accumulated other comprehensive income (loss), net of applicable income taxes, which will be reclassified to interest expense as interest payments are made on the Company’s debt. Income tax effects in accumulated other comprehensive income are released as investments are sold or matured and liabilities are extinguished.
Treasury stock	TREASURY STOCK The repurchase of the Company’s common stock is recorded at cost. At the time of reissuance, the treasury stock account is reduced using the average cost method. Gains and losses on the reissuance of common stock are recorded in additional paid-in capital, to the extent additional paid-in capital from any previous net gains on treasury share transactions exists. Any net deficiency is charged to retained earnings.
Recent accounting developments	RECENT ACCOUNTING DEVELOPMENTS In June 2018, the FASB issued Accounting Standard Update (“ASU”) 2018-07, “Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting” which more closely aligns the accounting for employee and nonemployee share-based payments. This standard is effective for public business entities for annual and interim periods in fiscal years beginning after December 15, 2018 . Early adoption is permitted, but no earlier than an entity’s adoption date of Topic 606. The Company is currently evaluating the impact this standard will have on our results of operations and financial position. In February 2018, the FASB issued ASU 2018-02, "Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income" to address a narrow-scope financial reporting issue that arose as a consequence of the change in the tax law. The standard allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. This standard is effective for all entities for fiscal years beginning after December 15, 2018 , and interim periods within those fiscal years with early adoption permitted, including adoption in any interim period, for public business entities for reporting periods for which financial statements have not yet been issued. The changes could be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. The Company early adopted this standard on January 1, 2018 , and elected to reclassify the effect of the change in the U.S. federal corporate income tax rate from accumulated other comprehensive income to retained earnings of $274,000 , which is reflected in the Consolidated Statements of Changes in Shareholders' Equity in the period of adoption. In August 2017, the FASB issued ASU 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities,” which changes the recognition and presentation requirements of hedge accounting, including: eliminating the requirement to separately measure and report hedge ineffectiveness; and presenting all items that affect earnings in the same income statement line item as the hedged item. The standard also provides new alternatives for: applying hedge accounting to additional hedging strategies; measuring the hedged item in fair value hedges of interest rate risk; reducing the cost and complexity of applying hedge accounting by easing the requirements for effectiveness testing, hedge documentation and application of the critical terms match method; and reducing the risk of material error correction if a company applies the shortcut method inappropriately. This standard is effective for public business entities, for annual and interim periods in fiscal years beginning after December 15, 2018 . The Company is currently evaluating the impact this standard will have on our results of operations and financial position. In March 2017, the FASB issued ASU 2017-08, “Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities,” which shortens the premium amortization period for purchased non-contingently callable debt securities. Shortening the amortization period is generally expected to more closely align the interest income recognition with the expectations incorporated in the market pricing on the underlying securities. This standard is effective for public business entities for annual and interim periods in fiscal years beginning after December 15, 2018 . The Company is currently evaluating the impact this standard will have on our results of operations and financial position. In January 2017, the FASB issued ASU 2017-04, “Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment,” which requires an entity to no longer perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, impairment will be measured using the difference between the carrying amount and the fair value of the reporting unit. The changes are effective for public business entities, for annual and interim periods in fiscal years beginning after December 15, 2019 . All entities may early adopt the standard for goodwill impairment tests with measurement dates after January 1, 2017. The Company is currently evaluating the impact this standard will have on our results of operations and financial position. In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments,” which significantly changes the way entities recognize impairment of many financial assets by requiring immediate recognition of estimated credit losses expected to occur over their remaining life. The changes are effective for public business entities that are SEC filers, for annual and interim periods in fiscal years beginning after December 15, 2019 . Management created a formal working group to govern the implementation of this standard consisting of key stakeholders from finance, risk and credit. We are currently in the process of designing current expected credit loss estimation methodologies and systems, and collecting data to be able to comply with this standard. The Company is currently evaluating the impact this standard will have on our results of operations, financial position and related disclosure. In February 2016, the FASB issued ASU 2016-02, “Leases,” which, among other things, requires lessees to recognize most leases on-balance sheet. This will increase their reported assets and liabilities - in some cases very significantly. Lessor accounting remains substantially similar to current U.S. GAAP. ASU 2016-02 supersedes Topic 840, Leases . This standard is effective for public business entities, certain not-for-profit entities, and certain employee benefit plans for annual and interim periods in fiscal years beginning after December 15, 2018 . The Company is currently evaluating the impact this standard will have on our results of operations and financial position. In January 2016, the FASB issued ASU 2016-01, “Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities,” which makes targeted amendments to the guidance for recognition, measurement, presentation and disclosure of financial instruments. This standard is effective for public business entities for interim and annual periods in fiscal years beginning after December 15, 2017 . The Company was impacted by two main provisions of this standard as follows. (1) This standard requires a public entity to use the exit price notion to measure fair value of financial instruments for disclosure purposes. Accordingly, the Company refined the calculation used to determine the disclosed fair value of loans held-for-investment as part of adopting this standard. The refined calculation did not have a significant impact on our fair value disclosures. (2) This standard requires equity investments, other than equity method investments, to be measured at fair value with changes in fair value recognized in net income. This standard requires a cumulative effect adjustment to retained earnings as of the beginning of the reporting period of adoption to reclassify the cumulative change in fair value of equity securities previously recognized in accumulated other comprehensive income. The Company adopted this standard on January 1, 2018 , which resulted in a cumulative effect adjustment from accumulated other comprehensive income to retained earnings of $286,000 , which is reflected in the Consolidated Statements of Changes in Shareholders' Equity in the period of adoption. In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606).” This standard implements a common approach that clarifies the principles for recognizing revenue. The core principle of this update is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This standard establishes a five-step model that entities must follow to recognize revenue. This update is effective for annual periods and interim periods in fiscal years beginning after December 15, 2017 , for public business entities. A significant amount of the Company’s revenues are derived from net interest income on financial assets and liabilities, which are excluded from the scope of the amended guidance. The Company completed its assessment of revenue streams and associated incremental costs of contracts affected by the standard. The Company’s adoption of this standard did not change the method in which we recognize revenue. This standard requires that certain incremental costs incurred to acquire some of our investment management contracts to be capitalized and deferred over the estimated life of the contract. The adoption of this standard altered the timing, measurement and recognition of these costs in the income statement; however, the impact is not material. The Company adopted this standard on January 1, 2018 , utilizing the modified retrospective approach with a cumulative effect adjustment to retained earnings of $534,000 .
Revenue recognition	The majority of our revenue-generating transactions are not subject to ASC Topic 606, including revenue generated from financial instruments, such as our loans, derivatives and investment securities as these activities are subject to other GAAP discussed elsewhere within our disclosures. Descriptions of our other revenue-generating activities that are within the scope of ASC Topic 606, which are presented in our consolidated statements of income as components of non-interest income are as follows: • Investment management fees - this represents monthly fees due from investment management customers as consideration for managing the customers' assets. Revenue is recognized when our performance obligation is completed each month. • Service charges on deposits - these represent general service fees for monthly account maintenance and activity- or transaction-based fees and consist of transaction-based revenue, time-based revenue (service period), item-based revenue or some other individual attribute-based revenue. Revenue is recognized when our performance obligation is completed which is generally monthly for account maintenance services or when a transaction has been completed (such as a wire transfer). Payment for such performance obligations are generally received at the time the performance obligations are satisfied. • Commitment and other loan fees - this represents letters of credit fees and unused loan commitment fees. Revenue is recognized upon the issuance or renewal of a letter of credit and monthly for unused commitment fees. • Other non-interest income primarily includes items such as income on swap fees, BOLI, gains on sale of loans, and other miscellaneous items, which are not subject to the requirements of ASC Topic 606 or no modification was required under this standard.
Reclassification	RECLASSIFICATION Certain items previously reported have been reclassified to conform with the current year’s reporting presentation and are considered immaterial.

Business Combination (Tables)

Business Combination (Tables)	6 Months Ended
	Jun. 30, 2018
Business Combinations [Abstract]
Schedule of business acquisitions	The following table summarizes total consideration at closing and assets acquired for the Columbia acquisition on April 6, 2018: (Dollars in thousands) Columbia Acquisition Consideration paid: Cash $ 1,334 Estimated earn out, at closing 3,138 Fair value of total consideration $ 4,472 Intangible assets acquired $ 1,537 Goodwill 2,935 Total net assets purchased $ 4,472
Schedule of acquired finite-lived intangible assets	The following table shows the amount of other intangible assets acquired through the Columbia acquisition on April 6, 2018, by class and estimated useful life. (Dollars in thousands) Gross Amount Weighted Average Estimated Useful Life Client Relationships: Sub-advisory client list $ 115 132 Separate managed accounts client list 1,365 108 Non-compete agreements 57 48 Total finite-lived intangibles $ 1,537 108
Business acquisition, pro forma	The following table presents unaudited pro forma financial information which combines the historical consolidated statements of income of the Company and the Columbia contracts acquired to give effect to the acquisition as if it had occurred on January 1, 2017, for the periods indicated. Pro Forma Six Months Ended June 30, (Dollars in thousands, except per share data) 2018 2017 Total revenue $ 79,244 $ 67,229 Net income available to common shareholders $ 24,314 $ 16,124 Earnings per common share: Basic $ 0.88 $ 0.58 Diluted $ 0.84 $ 0.56

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Schedule of investment securities available-for-sale	Debt securities available-for-sale and held-to-maturity were comprised of the following: June 30, 2018 (Dollars in thousands) Amortized Gross Unrealized Gross Unrealized Estimated Debt securities available-for-sale: Corporate bonds $ 99,737 $ 13 $ 1,136 $ 98,614 Trust preferred securities 17,903 514 — 18,417 Non-agency collateralized loan obligations 626 — 4 622 Agency collateralized mortgage obligations 36,742 60 4 36,798 Agency mortgage-backed securities 21,942 102 427 21,617 Agency debentures 10,480 5 86 10,399 Total debt securities available-for-sale 187,430 694 1,657 186,467 Debt securities held-to-maturity: Corporate bonds 32,186 360 33 32,513 Agency debentures 21,870 10 40 21,840 Municipal bonds 23,042 11 123 22,930 Total debt securities held-to-maturity 77,098 381 196 77,283 Total debt securities $ 264,528 $ 1,075 $ 1,853 $ 263,750 December 31, 2017 (Dollars in thousands) Amortized Gross Unrealized Gross Unrealized Estimated Debt securities available-for-sale: Corporate bonds $ 61,616 $ 216 $ 143 $ 61,689 Trust preferred securities 17,840 741 — 18,581 Non-agency collateralized loan obligations 811 — 6 805 Agency collateralized mortgage obligations 38,873 25 76 38,822 Agency mortgage-backed securities 19,007 96 150 18,953 Total debt securities available-for-sale 138,147 1,078 375 138,850 Debt securities held-to-maturity: Corporate bonds 32,189 785 33 32,941 Agency debentures 1,984 3 — 1,987 Municipal bonds 25,102 122 11 25,213 Total debt securities held-to-maturity 59,275 910 44 60,141 Total debt securities $ 197,422 $ 1,988 $ 419 $ 198,991
Schedule of investment securities held-to-maturity	Debt securities available-for-sale and held-to-maturity were comprised of the following: June 30, 2018 (Dollars in thousands) Amortized Gross Unrealized Gross Unrealized Estimated Debt securities available-for-sale: Corporate bonds $ 99,737 $ 13 $ 1,136 $ 98,614 Trust preferred securities 17,903 514 — 18,417 Non-agency collateralized loan obligations 626 — 4 622 Agency collateralized mortgage obligations 36,742 60 4 36,798 Agency mortgage-backed securities 21,942 102 427 21,617 Agency debentures 10,480 5 86 10,399 Total debt securities available-for-sale 187,430 694 1,657 186,467 Debt securities held-to-maturity: Corporate bonds 32,186 360 33 32,513 Agency debentures 21,870 10 40 21,840 Municipal bonds 23,042 11 123 22,930 Total debt securities held-to-maturity 77,098 381 196 77,283 Total debt securities $ 264,528 $ 1,075 $ 1,853 $ 263,750 December 31, 2017 (Dollars in thousands) Amortized Gross Unrealized Gross Unrealized Estimated Debt securities available-for-sale: Corporate bonds $ 61,616 $ 216 $ 143 $ 61,689 Trust preferred securities 17,840 741 — 18,581 Non-agency collateralized loan obligations 811 — 6 805 Agency collateralized mortgage obligations 38,873 25 76 38,822 Agency mortgage-backed securities 19,007 96 150 18,953 Total debt securities available-for-sale 138,147 1,078 375 138,850 Debt securities held-to-maturity: Corporate bonds 32,189 785 33 32,941 Agency debentures 1,984 3 — 1,987 Municipal bonds 25,102 122 11 25,213 Total debt securities held-to-maturity 59,275 910 44 60,141 Total debt securities $ 197,422 $ 1,988 $ 419 $ 198,991
Interest income on investment securities	Interest income on investment securities was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Taxable interest income $ 1,901 $ 1,206 $ 3,314 $ 2,384 Non-taxable interest income 105 113 216 226 Dividend income 294 216 554 395 Total interest income on investment securities $ 2,300 $ 1,535 $ 4,084 $ 3,005
Schedule of contractual maturities of debt securities	As of June 30, 2018 , the contractual maturities of the debt securities were: June 30, 2018 Available-for-Sale Held-to-Maturity (Dollars in thousands) Amortized Estimated Amortized Estimated Due in one year or less $ 20,211 $ 20,158 $ 6,230 $ 6,253 Due from one to five years 58,347 58,049 31,938 31,912 Due from five to ten years 31,174 30,613 38,930 39,118 Due after ten years 77,698 77,647 — — Total debt securities $ 187,430 $ 186,467 $ 77,098 $ 77,283
Schedule of proceeds and realized gains and losses from investments securities	Proceeds from the sale and call of debt securities available-for-sale and held-to-maturity and related realized gains and losses were: Available-for-Sale Held-to-Maturity Available-for-Sale Held-to-Maturity Three Months Ended June 30, Three Months Ended June 30, Six Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 2018 2017 2018 2017 Proceeds from sales $ — $ — $ — $ — $ 2,037 $ — $ — $ — Proceeds from calls 4,081 16,675 105 — 4,081 21,675 1,000 — Total proceeds $ 4,081 $ 16,675 $ 105 $ — $ 6,118 $ 21,675 $ 1,000 $ — Gross realized gains $ 4 $ 241 $ — $ — $ 6 $ 241 $ 3 $ — Gross realized losses 3 — — — 3 2 — — Net realized gains (losses) $ 1 $ 241 $ — $ — $ 3 $ 239 $ 3 $ —
Schedule of fair value and gross unrealized losses on investment equity securities	The following tables show the fair value and gross unrealized losses on temporarily impaired debt securities available-for-sale and held-to-maturity and equity securities, by investment category and length of time that the individual securities have been in a continuous unrealized loss position as of June 30, 2018 and December 31, 2017 , respectively: June 30, 2018 Less than 12 Months 12 Months or More Total (Dollars in thousands) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Debt securities available-for-sale: Corporate bonds $ 86,824 $ 1,136 $ — $ — $ 86,824 $ 1,136 Non-agency collateralized loan obligations — — 622 4 622 4 Agency collateralized mortgage obligations 1,731 1 3,928 3 5,659 4 Agency mortgage-backed securities 5,551 93 8,026 334 13,577 427 Agency debentures 7,300 86 — — 7,300 86 Total debt securities available-for-sale 101,406 1,316 12,576 341 113,982 1,657 Debt securities held-to-maturity: Corporate bonds 5,404 33 — — 5,404 33 Agency debentures 10,841 40 — — 10,841 40 Municipal bonds 15,091 123 — — 15,091 123 Total debt securities held-to-maturity 31,336 196 — — 31,336 196 Equity securities — — 8,630 410 8,630 410 Total temporarily impaired securities (1) $ 132,742 $ 1,512 $ 21,206 $ 751 $ 153,948 $ 2,263 (1) The number of investment positions with unrealized losses totaled 63 for available-for-sale securities, 25 for held-to-maturity securities and 2 for equity securities. December 31, 2017 Less than 12 Months 12 Months or More Total (Dollars in thousands) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Debt securities available-for-sale: Corporate bonds $ 29,995 $ 143 $ — $ — $ 29,995 $ 143 Non-agency collateralized loan obligations — — 805 6 805 6 Agency collateralized mortgage obligations 1,593 1 32,816 75 34,409 76 Agency mortgage-backed securities 2,960 10 9,437 140 12,397 150 Total debt securities available-for-sale 34,548 154 43,058 221 77,606 375 Debt securities held-to-maturity: Corporate bonds 2,406 33 — — 2,406 33 Municipal bonds 6,051 11 — — 6,051 11 Total debt securities held-to-maturity 8,457 44 — — 8,457 44 Equity securities — — 8,635 275 8,635 275 Total temporarily impaired securities (1) $ 43,005 $ 198 $ 51,693 $ 496 $ 94,698 $ 694 (1) The number of investment positions with unrealized losses totaled 28 for available-for-sale securities, 8 for held-to-maturity securities and 2 for equity securities.

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Schedule of loans receivable	Loans held-for-investment were comprised of the following: June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Loans held-for-investment, before deferred fees and costs $ 2,483,285 $ 741,445 $ 1,326,318 $ 4,551,048 Deferred loan costs (fees) 4,877 456 (3,453 ) 1,880 Loans held-for-investment, net of deferred fees and costs 2,488,162 741,901 1,322,865 4,552,928 Allowance for loan losses (1,557 ) (8,786 ) (4,978 ) (15,321 ) Loans held-for-investment, net $ 2,486,605 $ 733,115 $ 1,317,887 $ 4,537,607 December 31, 2017 (Dollars in thousands) Private Commercial Commercial Total Loans held-for-investment, before deferred fees and costs $ 2,261,625 $ 667,028 $ 1,254,184 $ 4,182,837 Deferred loan costs (fees) 4,112 656 (3,361 ) 1,407 Loans held-for-investment, net of deferred fees and costs 2,265,737 667,684 1,250,823 4,184,244 Allowance for loan losses (1,577 ) (8,043 ) (4,797 ) (14,417 ) Loans held-for-investment, net $ 2,264,160 $ 659,641 $ 1,246,026 $ 4,169,827

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	6 Months Ended
	Jun. 30, 2018
Allowance for Loan Losses [Abstract]
Schedule of investment in loans by credit quality indicator	The following tables present the recorded investment in loans by credit quality indicator: June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Pass $ 2,487,864 $ 714,039 $ 1,321,015 $ 4,522,918 Special mention — 22,506 1,850 24,356 Substandard 298 5,356 — 5,654 Loans held-for-investment $ 2,488,162 $ 741,901 $ 1,322,865 $ 4,552,928 December 31, 2017 (Dollars in thousands) Private Commercial Commercial Total Pass $ 2,265,369 $ 639,987 $ 1,248,972 $ 4,154,328 Special mention — 24,882 1,851 26,733 Substandard 368 2,815 — 3,183 Loans held-for-investment $ 2,265,737 $ 667,684 $ 1,250,823 $ 4,184,244
Schedule of change in allowance for loan losses	Changes in the allowance for loan losses were as follows for the three months ended June 30, 2018 and 2017 : Three Months Ended June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Balance, beginning of period $ 1,556 $ 8,466 $ 4,796 $ 14,818 Provision for loan losses 1 232 182 415 Charge-offs — — — — Recoveries — 88 — 88 Balance, end of period $ 1,557 $ 8,786 $ 4,978 $ 15,321 Three Months Ended June 30, 2017 (Dollars in thousands) Private Commercial Commercial Total Balance, beginning of period $ 1,421 $ 10,436 $ 4,328 $ 16,185 Provision for loan losses 27 198 291 516 Charge-offs — (1,000 ) — (1,000 ) Recoveries — 267 — 267 Balance, end of period $ 1,448 $ 9,901 $ 4,619 $ 15,968 Changes in the allowance for loan losses were as follows for the six months ended June 30, 2018 and 2017 : Six Months Ended June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Balance, beginning of period $ 1,577 $ 8,043 $ 4,797 $ 14,417 Provision (credit) for loan losses (20 ) 449 181 610 Charge-offs — — — — Recoveries — 294 — 294 Balance, end of period $ 1,557 $ 8,786 $ 4,978 $ 15,321 Six Months Ended June 30, 2017 (Dollars in thousands) Private Commercial Commercial Total Balance, beginning of period $ 1,424 $ 12,326 $ 5,012 $ 18,762 Provision (credit) for loan losses 24 1,128 (393 ) 759 Charge-offs — (3,889 ) — (3,889 ) Recoveries — 336 — 336 Balance, end of period $ 1,448 $ 9,901 $ 4,619 $ 15,968
Schedule of past due loans segregated by class of loan	The following tables present the age analysis of past due loans segregated by class of loan: June 30, 2018 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Total Private banking $ 280 $ 90 $ — $ 370 $ 2,487,792 $ 2,488,162 Commercial and industrial — — 2,139 2,139 739,762 741,901 Commercial real estate — — — — 1,322,865 1,322,865 Loans held-for-investment $ 280 $ 90 $ 2,139 $ 2,509 $ 4,550,419 $ 4,552,928 December 31, 2017 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Total Private banking $ 1,266 $ — $ — $ 1,266 $ 2,264,471 $ 2,265,737 Commercial and industrial — — — — 667,684 667,684 Commercial real estate 1,849 — — 1,849 1,248,974 1,250,823 Loans held-for-investment $ 3,115 $ — $ — $ 3,115 $ 4,181,129 $ 4,184,244
Schedule of investment in loans considered to be impaired	The following tables present the Company’s investment in loans considered to be impaired and related information on those impaired loans: As of and for the Six Months Ended June 30, 2018 (Dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With a related allowance recorded: Private banking $ 298 $ 477 $ 298 $ 328 $ — Commercial and industrial 2,139 2,485 2,139 2,139 — Commercial real estate — — — — — Total with a related allowance recorded 2,437 2,962 2,437 2,467 — Without a related allowance recorded: Private banking — — — — — Commercial and industrial 3,217 5,072 — 3,321 112 Commercial real estate — — — — — Total without a related allowance recorded 3,217 5,072 — 3,321 112 Total: Private banking 298 477 298 328 — Commercial and industrial 5,356 7,557 2,139 5,460 112 Commercial real estate — — — — — Total $ 5,654 $ 8,034 $ 2,437 $ 5,788 $ 112 As of and for the Twelve Months Ended December 31, 2017 (Dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With a related allowance recorded: Private banking $ 368 $ 541 $ 368 $ 438 $ — Commercial and industrial 2,815 3,135 2,139 3,067 — Commercial real estate — — — — — Total with a related allowance recorded 3,183 3,676 2,507 3,505 — Without a related allowance recorded: Private banking — — — — — Commercial and industrial 3,371 5,330 — 4,224 146 Commercial real estate — — — — — Total without a related allowance recorded 3,371 5,330 — 4,224 146 Total: Private banking 368 541 368 438 — Commercial and industrial 6,186 8,465 2,139 7,291 146 Commercial real estate — — — — — Total $ 6,554 $ 9,006 $ 2,507 $ 7,729 $ 146
Schedule of allowance for credit losses and investment in loans by class	The following tables present the allowance for loan losses and recorded investment in loans by class: June 30, 2018 (Dollars in thousands) Private Commercial Commercial Total Allowance for loan losses: Individually evaluated for impairment $ 298 $ 2,139 $ — $ 2,437 Collectively evaluated for impairment 1,259 6,647 4,978 12,884 Total allowance for loan losses $ 1,557 $ 8,786 $ 4,978 $ 15,321 Loans held-for-investment: Individually evaluated for impairment $ 298 $ 5,356 $ — $ 5,654 Collectively evaluated for impairment 2,487,864 736,545 1,322,865 4,547,274 Loans held-for-investment $ 2,488,162 $ 741,901 $ 1,322,865 $ 4,552,928 December 31, 2017 (Dollars in thousands) Private Commercial Commercial Total Allowance for loan losses: Individually evaluated for impairment $ 368 $ 2,139 $ — $ 2,507 Collectively evaluated for impairment 1,209 5,904 4,797 11,910 Total allowance for loan losses $ 1,577 $ 8,043 $ 4,797 $ 14,417 Loans held-for-investment: Individually evaluated for impairment $ 368 $ 6,186 $ — $ 6,554 Collectively evaluated for impairment 2,265,369 661,498 1,250,823 4,177,690 Loans held-for-investment $ 2,265,737 $ 667,684 $ 1,250,823 $ 4,184,244
Schedule of loans classified as troubled debt restructuring	The following table provides additional information on the Company’s loans designated as troubled debt restructurings: (Dollars in thousands) June 30, December 31, Aggregate recorded investment of impaired loans with terms modified through a troubled debt restructuring: Performing loans accruing interest $ 3,217 $ 3,371 Non-accrual loans 2,437 3,183 Total troubled debt restructurings $ 5,654 $ 6,554

Deposits (Tables)

Deposits (Tables)	6 Months Ended
	Jun. 30, 2018
Deposits [Abstract]
Schedule of deposits	As of June 30, 2018 and December 31, 2017 , deposits were comprised of the following: Interest Rate Weighted Average Balance (Dollars in thousands) June 30, June 30, December 31, June 30, December 31, Demand and savings accounts: Noninterest-bearing checking accounts — — — $ 247,705 $ 248,092 Interest-bearing checking accounts 0.05 to 2.49% 1.95% 1.42% 612,501 455,341 Money market deposit accounts 0.10 to 2.90% 1.82% 1.37% 2,494,927 2,289,789 Total demand and savings accounts 3,355,133 2,993,222 Certificates of deposit 1.10 to 3.22% 2.10% 1.40% 1,086,069 994,389 Total deposits $ 4,441,202 $ 3,987,611 Weighted average rate on interest-bearing accounts 1.91% 1.38%
Schedule of maturities of time deposits	The contractual maturity of certificates of deposit was as follows: (Dollars in thousands) June 30, December 31, 12 months or less $ 849,394 $ 874,733 12 months to 24 months 159,786 96,766 24 months to 36 months 76,889 22,890 Total $ 1,086,069 $ 994,389
Schedule of interest expense on deposits by type of deposit	Interest expense on deposits was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Interest-bearing checking accounts $ 2,576 $ 759 $ 4,198 $ 1,121 Money market deposit accounts 9,722 5,150 17,834 9,248 Certificates of deposit 4,398 2,587 8,065 4,840 Total interest expense on deposits $ 16,696 $ 8,496 $ 30,097 $ 15,209

Borrowings (Tables)

Borrowings (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Schedule of borrowings	As of June 30, 2018 and December 31, 2017 , borrowings were comprised of the following: June 30, 2018 December 31, 2017 (Dollars in thousands) Interest Rate Ending Balance Maturity Date Interest Rate Ending Balance Maturity Date FHLB borrowings: Issued 6/29/2018 2.05% $ 80,000 7/2/2018 $ — Issued 6/29/2018 2.20% 100,000 10/1/2018 — Issued 4/9/2018 2.01% 50,000 7/9/2018 — Issued 12/29/2017 — 1.57% 195,000 1/2/2018 Issued 12/29/2017 — 1.66% 100,000 3/29/2018 Line of credit borrowings — 4.56% 6,200 12/28/2018 Subordinated notes payable (net of debt issuance costs of $186 and $287) 5.75% 34,814 7/1/2019 5.75% 34,713 7/1/2019 Total borrowings, net $ 264,814 $ 335,913
Schedule of interest expense on borrowings	Interest expense on borrowings was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 FHLB borrowings $ 1,743 $ 1,016 $ 2,890 $ 1,570 Line of credit borrowings — 16 52 16 Subordinated notes payable 554 554 1,108 1,108 Total interest expense on borrowings $ 2,297 $ 1,586 $ 4,050 $ 2,694

Stock Transactions (Tables)

Stock Transactions (Tables)	6 Months Ended
	Jun. 30, 2018
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Schedule of preferred and common shares, activity	The tables below show the changes in the Company’s preferred and common shares outstanding during the periods indicated: Number of Number of Balance, December 31, 2016 — 28,415,654 Issuance of restricted common stock — 324,675 Exercise of stock options — 100,000 Purchase of treasury stock — (174,603 ) Balance, June 30, 2017 — 28,665,726 Balance, December 31, 2017 — 28,591,101 Issuance of preferred stock 40,250 — Issuance of restricted common stock — 389,113 Forfeitures of restricted common stock — (22,000 ) Exercise of stock options — 86,700 Purchase of treasury stock — (97,031 ) Balance, June 30, 2018 40,250 28,947,883

Regulatory Capital (Tables)

Regulatory Capital (Tables)	6 Months Ended
	Jun. 30, 2018
Regulatory Capital Requirements [Abstract]
Schedule of compliance with regulatory capital requirements under banking regulations	The following tables set forth certain information concerning the Company’s and the Bank’s regulatory capital as of June 30, 2018 and December 31, 2017 : June 30, 2018 Actual For Capital Adequacy Purposes To be Well Capitalized Under Prompt Corrective Action Provisions (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Total risk-based capital ratio Company $ 402,817 12.66 % $ 254,606 8.00 % N/A N/A Bank $ 405,480 12.82 % $ 252,976 8.00 % $ 316,220 10.00 % Tier 1 risk-based capital ratio Company $ 383,895 12.06 % $ 190,954 6.00 % N/A N/A Bank $ 391,440 12.38 % $ 189,732 6.00 % $ 252,976 8.00 % Common equity tier 1 risk-based capital ratio Company $ 348,211 10.94 % $ 143,216 4.50 % N/A N/A Bank $ 391,440 12.38 % $ 142,299 4.50 % $ 205,543 6.50 % Tier 1 leverage ratio Company $ 383,895 7.68 % $ 199,902 4.00 % N/A N/A Bank $ 391,440 7.87 % $ 199,077 4.00 % $ 248,846 5.00 % December 31, 2017 Actual For Capital Adequacy Purposes To be Well Capitalized Under Prompt Corrective Action Provisions (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Total risk-based capital ratio Company $ 343,758 11.72 % $ 234,576 8.00 % N/A N/A Bank $ 348,378 11.99 % $ 232,392 8.00 % $ 290,490 10.00 % Tier 1 risk-based capital ratio Company $ 326,594 11.14 % $ 175,932 6.00 % N/A N/A Bank $ 337,656 11.62 % $ 174,294 6.00 % $ 232,392 8.00 % Common equity tier 1 risk-based capital ratio Company $ 326,594 11.14 % $ 131,949 4.50 % N/A N/A Bank $ 337,656 11.62 % $ 130,720 4.50 % $ 188,818 6.50 % Tier 1 leverage ratio Company $ 326,594 7.25 % $ 180,090 4.00 % N/A N/A Bank $ 337,656 7.55 % $ 178,979 4.00 % $ 223,723 5.00 %

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Schedule of earnings per share, basic and diluted	The computation of basic and diluted earnings per common share for the periods presented was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands, except per share data) 2018 2017 2018 2017 Net income available to common shareholders $ 13,830 $ 8,421 $ 24,231 $ 15,913 Weighted average common shares outstanding: Basic 27,628,120 27,601,702 27,611,498 27,614,423 Restricted stock - dilutive 741,050 636,596 696,278 594,335 Stock options - dilutive 479,799 547,327 478,412 544,159 Diluted 28,848,969 28,785,625 28,786,188 28,752,917 Earnings per common share: Basic $ 0.50 $ 0.31 $ 0.88 $ 0.58 Diluted $ 0.48 $ 0.29 $ 0.84 $ 0.55
Schedule of antidilutive securities excluded from computation of earnings per share	Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Anti-dilutive shares (1) 19,000 — 22,500 — (1) Includes stock options and/or restricted stock not considered for the calculation of diluted EPS as their inclusion would have been anti-dilutive.

Derivatives and Hedging Activ36

Derivatives and Hedging Activity (Tables)	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of derivative instruments in statement of financial position, fair value	The tables below present the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated statements of financial condition as of June 30, 2018 and December 31, 2017 : Asset Derivatives Liability Derivatives as of June 30, 2018 as of June 30, 2018 (Dollars in thousands) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Interest rate products Other assets $ 2,493 Other liabilities $ — Derivatives not designated as hedging instruments: Interest rate products Other assets 22,424 Other liabilities 22,474 Total Other assets $ 24,917 Other liabilities $ 22,474 Asset Derivatives Liability Derivatives as of December 31, 2017 as of December 31, 2017 (Dollars in thousands) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Interest rate products Other assets $ 1,650 Other liabilities $ 9 Derivatives not designated as hedging instruments: Interest rate products Other assets 12,111 Other liabilities 12,069 Total Other assets $ 13,761 Other liabilities $ 12,078
Schedule of offsetting derivative assets	The following tables show the impact legally enforceable master netting agreements had on the Company’s derivative financial instruments as of June 30, 2018 and December 31, 2017 : Offsetting of Derivative Assets Gross Amounts of Recognized Assets Gross Amounts Offset in the Statement of Financial Position Net Amounts of Assets Gross Amounts Not Offset in the Statement of Financial Position Net Amount (Dollars in thousands) Financial Instruments Cash Collateral Received June 30, 2018 $ 24,917 $ — $ 24,917 $ (3,137 ) $ — $ 21,780 December 31, 2017 $ 13,761 $ — $ 13,761 $ (5,677 ) $ — $ 8,084
Schedule of offsetting derivative liabilities	Offsetting of Derivative Liabilities Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Statement of Financial Position Net Amounts of Liabilities Gross Amounts Not Offset in the Statement of Financial Position Net Amount (Dollars in thousands) Financial Instruments Cash Collateral Posted June 30, 2018 $ 22,474 $ — $ 22,474 $ (3,137 ) $ — $ 19,337 December 31, 2017 $ 12,078 $ — $ 12,078 $ (5,677 ) $ (124 ) $ 6,277
Schedule of derivative instruments, gain (loss) in statement of financial performance	The table below presents the effect of the Company’s non-designated hedge instruments in the consolidated statements of income: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Derivatives not designated as hedging instruments: Location of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Interest rate products Non-interest income $ (3 ) $ 106 $ 22 $ 12 Total $ (3 ) $ 106 $ 22 $ 12 The table below presents the effect of the Company’s fair value hedge instruments in the consolidated statements of income: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Derivatives designated as hedging instruments: Location of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Interest rate products Interest income $ — $ (16 ) $ (9 ) $ (31 ) Interest rate products Non-interest income — 1 — 3 Total $ — $ (15 ) $ (9 ) $ (28 ) The tables below present the effective portion of the Company’s cash flow hedge instruments in the consolidated statements of income and accumulated other comprehensive income: Three Months Ended June 30, Three Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Derivatives designated as hedging instruments: Location of Gain (Loss) Recognized in Income on Derivatives Realized Gain (Loss) Recognized in Income on Derivatives Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivatives Interest rate products Interest expense $ 382 $ 81 $ 340 $ (242 ) Total $ 382 $ 81 $ 340 $ (242 ) Six Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2018 2017 2018 2017 Derivatives designated as hedging instruments: Location of Gain (Loss) Recognized in Income on Derivatives Realized Gain (Loss) Recognized in Income on Derivatives Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivatives Interest rate products Interest expense $ 540 $ 123 $ 1,282 $ (156 ) Total $ 540 $ 123 $ 1,282 $ (156 )
Schedule of interest rate derivative transactions	Characteristics of the Company’s interest rate derivative transactions designated as cash flow hedges of interest rate risk as of June 30, 2018 were as follows: (Dollars in thousands) Notional Estimated Increase/(Decrease) to Interest Expense in the Next Twelve Months Maturity Date Remaining Term Interest rate products: Issued 6/29/2016 $ 100,000 $ (1,736 ) 6/29/2019 12 Issued 1/8/2018 50,000 (177 ) 1/8/2021 30 Total $ 150,000 $ (1,913 )

Disclosures About Fair Value 37

Disclosures About Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of fair value, assets and liabilities measured on recurring basis	The following tables represent assets and liabilities measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017 : June 30, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets / Financial assets: Debt securities available-for-sale: Corporate bonds $ — $ 98,614 $ — $ 98,614 Trust preferred securities — 18,417 — 18,417 Non-agency collateralized loan obligations — 622 — 622 Agency collateralized mortgage obligations — 36,798 — 36,798 Agency mortgage-backed securities — 21,617 — 21,617 Agency debentures — 10,399 — 10,399 Equity securities 8,630 — — 8,630 Interest rate swaps — 24,917 — 24,917 Total financial assets 8,630 211,384 — 220,014 Financial liabilities: Interest rate swaps — 22,474 — 22,474 Acquisition earn out liability — — 3,138 3,138 Total financial liabilities $ — $ 22,474 $ 3,138 $ 25,612 December 31, 2017 (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets / Financial assets: Debt securities available-for-sale: Corporate bonds $ — $ 61,689 $ — $ 61,689 Trust preferred securities — 18,581 — 18,581 Non-agency collateralized loan obligations — 805 — 805 Agency collateralized mortgage obligations — 38,822 — 38,822 Agency mortgage-backed securities — 18,953 — 18,953 Equity securities 8,635 — — 8,635 Interest rate swaps — 13,761 — 13,761 Total financial assets 8,635 152,611 — 161,246 Financial liabilities: Interest rate swaps — 12,078 — 12,078 Total financial liabilities $ — $ 12,078 $ — $ 12,078
Schedule of fair value measurements, nonrecurring	The following tables represent the balances of assets measured at fair value on a non-recurring basis as of June 30, 2018 and December 31, 2017 : June 30, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets Loans measured for impairment, net $ — $ — $ 3,217 $ 3,217 Other real estate owned — — 3,576 3,576 Total assets $ — $ — $ 6,793 $ 6,793 December 31, 2017 (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets Loans measured for impairment, net $ — $ — $ 4,047 $ 4,047 Other real estate owned — — 3,576 3,576 Total assets $ — $ — $ 7,623 $ 7,623
Schedule of fair value inputs, assets, quantitative information	The following tables present additional quantitative information about assets measured at fair value on a recurring and non-recurring basis and for which we have utilized Level 3 inputs to determine fair value as of June 30, 2018 and December 31, 2017 : June 30, 2018 (Dollars in thousands) Fair Value Valuation Techniques (1) Significant Unobservable Inputs Weighted Average Multiple/ Acquisition earn out liability $ 3,138 Income approach Run-rate revenue multiple; client retention 1.6 times Loans measured for impairment, net $ 3,217 Discounted cash flow Discount due to restructured nature of operations 6 % Other real estate owned $ 3,576 Appraisal value Discount due to salability conditions 10 % (1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent. December 31, 2017 (Dollars in thousands) Fair Value Valuation Techniques (1) Significant Unobservable Inputs Weighted Average Loans measured for impairment, net $ 676 Appraisal value Discount due to salability conditions — % Loans measured for impairment, net $ 3,371 Discounted cash flow Discount due to restructured nature of operations 6 % Other real estate owned $ 3,576 Appraisal value Discount due to salability conditions 10 % (1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.
Schedule of fair and carrying value of financial assets and liabilities	A summary of the carrying amounts and estimated fair values of financial instruments was as follows: June 30, 2018 December 31, 2017 (Dollars in thousands) Fair Value Carrying Estimated Carrying Estimated Financial assets: Cash and cash equivalents 1 $ 164,367 $ 164,367 $ 156,153 $ 156,153 Debt securities available-for-sale 2 186,467 186,467 138,850 138,850 Debt securities held-to-maturity 2 77,098 77,283 59,275 60,141 Equity securities 1 8,630 8,630 8,635 8,635 Federal Home Loan Bank stock 2 16,479 16,479 13,792 13,792 Loans held-for-investment, net 3 4,537,607 4,540,877 4,169,827 4,167,775 Accrued interest receivable 2 16,187 16,187 13,519 13,519 Investment management fees receivable, net 2 7,835 7,835 7,720 7,720 Bank owned life insurance 2 67,451 67,451 66,593 66,593 Other real estate owned 3 3,576 3,576 3,576 3,576 Interest rate swaps 2 24,917 24,917 13,761 13,761 Financial liabilities: Deposits 2 $ 4,441,202 $ 4,436,176 $ 3,987,611 $ 3,985,883 Borrowings, net 2 264,814 264,670 335,913 336,051 Acquisition earn out liability 3 3,138 3,138 — — Interest rate swaps 2 22,474 22,474 12,078 12,078

Changes in Accumulated Other 38

Changes in Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Schedule of changes in accumulated other comprehensive income (loss)	The following tables show the changes in accumulated other comprehensive income (loss) net of tax, for the periods presented: Three Months Ended June 30, 2018 2017 (Dollars in thousands) Investment Securities Derivatives Total Investment Securities Derivatives Total Balance, beginning of period $ (265 ) $ 1,910 $ 1,645 $ (113 ) $ 1,155 $ 1,042 Change in unrealized holding gains (losses) (567 ) 261 (306 ) 707 (155 ) 552 Gains reclassified from other comprehensive income (1 ) (293 ) (294 ) (155 ) (52 ) (207 ) Net other comprehensive income (loss) (568 ) (32 ) (600 ) 552 (207 ) 345 Balance, end of period $ (833 ) $ 1,878 $ 1,045 $ 439 $ 948 $ 1,387 Six Months Ended June 30, 2018 2017 (Dollars in thousands) Investment Securities Derivatives Total Investment Securities Derivatives Total Balance, beginning of period $ 172 $ 1,074 $ 1,246 $ (297 ) $ 1,127 $ 830 Change in unrealized holding gains (losses) (1,325 ) 983 (342 ) 890 (100 ) 790 Gains reclassified from other comprehensive income (5 ) (414 ) (419 ) (154 ) (79 ) (233 ) Reclassification for equity securities under ASU 2016-01 (see Note 1) 286 — 286 — — — Reclassification for certain income tax effects under ASU 2018-02 (see Note 1) 39 235 274 — — — Net other comprehensive income (loss) (1,005 ) 804 (201 ) 736 (179 ) 557 Balance, end of period $ (833 ) $ 1,878 $ 1,045 $ 439 $ 948 $ 1,387

Segments (Tables)

Segments (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Schedule of segment reporting information, by segment	The following tables provide financial information for the two segments of the Company as of and for the periods indicated. The information provided under the caption “Parent and Other” represents general operating activity of the Company not considered to be a reportable segment, which includes the parent company activity as well as eliminations and adjustments that are necessary for purposes of reconciliation to the consolidated amounts. (Dollars in thousands) June 30, December 31, Assets: Bank $ 5,143,547 $ 4,691,760 Investment management 89,738 84,714 Parent and other 651 1,423 Total assets $ 5,233,936 $ 4,777,897 Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (Dollars in thousands) Bank Investment Parent Consolidated Bank Investment Parent Consolidated Income statement data: Interest income $ 47,720 $ — $ 64 $ 47,784 $ 32,047 $ — $ 68 $ 32,115 Interest expense 18,440 — 553 18,993 9,515 — 567 10,082 Net interest income (loss) 29,280 — (489 ) 28,791 22,532 — (499 ) 22,033 Provision for loan losses 415 — — 415 516 — — 516 Net interest income (loss) after provision for loan losses 28,865 — (489 ) 28,376 22,016 — (499 ) 21,517 Non-interest income: Investment management fees — 9,743 (57 ) 9,686 — 9,182 (52 ) 9,130 Net gain on the sale and call of debt securities 1 — — 1 241 — — 241 Other non-interest income 2,849 1 (35 ) 2,815 2,341 — — 2,341 Total non-interest income 2,850 9,744 (92 ) 12,502 2,582 9,182 (52 ) 11,712 Non-interest expense: Intangible amortization expense — 502 — 502 — 462 — 462 Other non-interest expense 16,223 8,242 351 24,816 13,688 7,612 22 21,322 Total non-interest expense 16,223 8,744 351 25,318 13,688 8,074 22 21,784 Income (loss) before tax 15,492 1,000 (932 ) 15,560 10,910 1,108 (573 ) 11,445 Income tax expense (benefit) 955 277 (264 ) 968 2,819 425 (220 ) 3,024 Net income (loss) $ 14,537 $ 723 $ (668 ) $ 14,592 $ 8,091 $ 683 $ (353 ) $ 8,421 Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 (Dollars in thousands) Bank Investment Parent Consolidated Bank Investment Parent Consolidated Income statement data: Interest income $ 89,071 $ — $ 129 $ 89,200 $ 60,708 $ — $ 144 $ 60,852 Interest expense 32,990 — 1,157 34,147 16,785 — 1,118 17,903 Net interest income (loss) 56,081 — (1,028 ) 55,053 43,923 — (974 ) 42,949 Provision for loan losses 610 — — 610 759 — — 759 Net interest income (loss) after provision for loan losses 55,471 — (1,028 ) 54,443 43,164 — (974 ) 42,190 Non-interest income: Investment management fees — 18,707 (113 ) 18,594 — 18,578 (108 ) 18,470 Net gain on the sale and call of debt securities 6 — — 6 239 — — 239 Other non-interest income 5,026 1 (36 ) 4,991 4,411 1 — 4,412 Total non-interest income 5,032 18,708 (149 ) 23,591 4,650 18,579 (108 ) 23,121 Non-interest expense: Intangible amortization expense — 963 — 963 — 925 — 925 Other non-interest expense 32,010 15,815 380 48,205 27,293 14,651 73 42,017 Total non-interest expense 32,010 16,778 380 49,168 27,293 15,576 73 42,942 Income (loss) before tax 28,493 1,930 (1,557 ) 28,866 20,521 3,003 (1,155 ) 22,369 Income tax expense (benefit) 3,809 504 (440 ) 3,873 5,747 1,152 (443 ) 6,456 Net income (loss) $ 24,684 $ 1,426 $ (1,117 ) $ 24,993 $ 14,774 $ 1,851 $ (712 ) $ 15,913

Basis of Information and Summ40

Basis of Information and Summary of Significant Accounting Policies - Narrative (Details)	6 Months Ended
	Jun. 30, 2018USD ($)officesportfoliosubsidiary	Jun. 30, 2017USD ($)	Jan. 01, 2018USD ($)	Dec. 31, 2017USD ($)
Significant Accounting Policies [Line Items]
Number of wholly owned subsidiaries | subsidiary	3
Number of representative offices, additional to main office | offices	4
Number of loan portfolios | portfolio	3
Bad debt expense	$ 0	$ 150,000
Allowance for uncollectible accounts	0			$ 0
Impact of adoption of ASU				534,000
ASU 2018-02 | Retained Earnings
Significant Accounting Policies [Line Items]
Reclassification for certain income tax effects under ASU 2018-02	$ 274,000
ASU 2016-01 | Retained Earnings
Significant Accounting Policies [Line Items]
Impact of adoption of ASU			$ (286,000)	(286,000)
ASU 2014-09 | Retained Earnings
Significant Accounting Policies [Line Items]
Impact of adoption of ASU			$ 534,000	$ 534,000
Maximum
Significant Accounting Policies [Line Items]
Original maturity of short-term investments (in days)	90 days
Estimated useful lives of intangible assets (in years)	25 years
Estimated useful lives of office properties and equipment (in years)	10 years
Minimum
Significant Accounting Policies [Line Items]
Past due period for loans (in days)	90 days
Consecutive period loan is current (in months)	6 months
Estimated useful lives of intangible assets (in years)	4 years
Estimated useful lives of office properties and equipment (in years)	3 years

Business Combination - Narrativ

Business Combination - Narrative (Details) - USD ($) $ in Thousands	Apr. 06, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Business Acquisition [Line Items]
Cash		$ 1,335	$ 0
Acquisition earn out liability		3,138	$ 0	$ 0
Columbia acquisition
Business Acquisition [Line Items]
Assets under management, carrying amount	$ 1,070,000
Cash	1,334
Maximum earn out liability	3,800
Acquisition earn out liability	$ 3,138
Revenue of acquiree since acquisition date, actual		516
Earnings or loss of acquiree since acquisition date, actual		$ 24

Business Combination - Assets A

Business Combination - Assets Acquired (Details) - USD ($) $ in Thousands	Apr. 06, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Business Acquisition [Line Items]
Cash		$ 1,335	$ 0
Acquisition earn out liability		3,138	$ 0	$ 0
Goodwill		$ 41,659		$ 38,724
Columbia acquisition
Business Acquisition [Line Items]
Cash	$ 1,334
Acquisition earn out liability	3,138
Fair value of total consideration	4,472
Intangible assets acquired	1,537
Goodwill	2,935
Total net assets purchased	$ 4,472

Business Combination - Other In

Business Combination - Other Intangible Assets Acquired (Details) - Columbia acquisition $ in Thousands	Apr. 06, 2018USD ($)
Business Acquisition [Line Items]
Gross Amount	$ 1,537
Weighted Average Estimated Useful Life (months)	108 months
Sub-advisory client list
Business Acquisition [Line Items]
Gross Amount	$ 115
Weighted Average Estimated Useful Life (months)	132 months
Separate managed accounts client list
Business Acquisition [Line Items]
Gross Amount	$ 1,365
Weighted Average Estimated Useful Life (months)	108 months
Non-compete agreements
Business Acquisition [Line Items]
Gross Amount	$ 57
Weighted Average Estimated Useful Life (months)	48 months

Business Combination - Pro Form

Business Combination - Pro Forma (Details) - Columbia acquisition - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Business Acquisition [Line Items]
Total revenue	$ 79,244	$ 67,229
Net income available to common shareholders	$ 24,314	$ 16,124
Earnings per common share:
Basic (in usd per share)	$ 0.88	$ 0.58
Diluted (in usd per share)	$ 0.84	$ 0.56

Investment Securities - Investm

Investment Securities - Investment Types (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt securities available-for-sale:
Amortized Cost	$ 187,430	$ 138,147
Gross Unrealized Appreciation	694	1,078
Gross Unrealized Depreciation	1,657	375
Debt securities available-for-sale	186,467	138,850
Debt securities held-to-maturity:
Amortized Cost	77,098	59,275
Gross Unrealized Appreciation	381	910
Gross Unrealized Depreciation	196	44
Estimated Fair Value	77,283	60,141
Amortized Cost	264,528	197,422
Gross Unrealized Appreciation	1,075	1,988
Gross Unrealized Depreciation	1,853	419
Estimated Fair Value	263,750	198,991
Corporate bonds
Debt securities available-for-sale:
Amortized Cost	99,737	61,616
Gross Unrealized Appreciation	13	216
Gross Unrealized Depreciation	1,136	143
Debt securities available-for-sale	98,614	61,689
Debt securities held-to-maturity:
Amortized Cost	32,186	32,189
Gross Unrealized Appreciation	360	785
Gross Unrealized Depreciation	33	33
Estimated Fair Value	32,513	32,941
Trust preferred securities
Debt securities available-for-sale:
Amortized Cost	17,903	17,840
Gross Unrealized Appreciation	514	741
Gross Unrealized Depreciation	0	0
Debt securities available-for-sale	18,417	18,581
Non-agency collateralized loan obligations
Debt securities available-for-sale:
Amortized Cost	626	811
Gross Unrealized Appreciation	0	0
Gross Unrealized Depreciation	4	6
Debt securities available-for-sale	622	805
Agency collateralized mortgage obligations
Debt securities available-for-sale:
Amortized Cost	36,742	38,873
Gross Unrealized Appreciation	60	25
Gross Unrealized Depreciation	4	76
Debt securities available-for-sale	36,798	38,822
Agency mortgage-backed securities
Debt securities available-for-sale:
Amortized Cost	21,942	19,007
Gross Unrealized Appreciation	102	96
Gross Unrealized Depreciation	427	150
Debt securities available-for-sale	21,617	18,953
Agency debentures
Debt securities available-for-sale:
Amortized Cost	10,480
Gross Unrealized Appreciation	5
Gross Unrealized Depreciation	86
Debt securities available-for-sale	10,399
Debt securities held-to-maturity:
Amortized Cost	21,870	1,984
Gross Unrealized Appreciation	10	3
Gross Unrealized Depreciation	40	0
Estimated Fair Value	21,840	1,987
Municipal bonds
Debt securities held-to-maturity:
Amortized Cost	23,042	25,102
Gross Unrealized Appreciation	11	122
Gross Unrealized Depreciation	123	11
Estimated Fair Value	$ 22,930	$ 25,213

Investment Securities - Interes

Investment Securities - Interest Income on Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Taxable interest income	$ 1,901	$ 1,206	$ 3,314	$ 2,384
Non-taxable interest income	105	113	216	226
Dividend income	294	216	554	395
Total interest income on investment securities	$ 2,300	$ 1,535	$ 4,084	$ 3,005

Investment Securities - Contrac

Investment Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale Securities, Debt Maturities, Amortized Cost
Due in one year or less	$ 20,211
Due from one to five years	58,347
Due from five to ten years	31,174
Due after ten years	77,698
Amortized Cost	187,430	$ 138,147
Available-for-sale Securities, Debt Maturities, Estimated Fair Value
Due in one year or less	20,158
Due from one to five years	58,049
Due from five to ten years	30,613
Due after ten years	77,647
Estimated Fair Value	186,467	138,850
Held-to-maturity Securities, Debt Maturities, Amortized Cost
Due in one year or less	6,230
Due from one to five years	31,938
Due from five to ten years	38,930
Due after ten years	0
Amortized Cost	77,098	59,275
Held-to-maturity Securities, Debt Maturities, Estimated Fair Value
Due in one year or less	6,253
Due from one to five years	31,912
Due from five to ten years	39,118
Due after ten years	0
Estimated Fair Value	$ 77,283	$ 60,141

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Available-for-sale securities with a contractual maturity due after ten years	$ 77,647
Floating rate available-for-sale securities with a contractual maturity due after ten years	$ 53,700
Percent of floating rate available-for-sale securities with a contractual maturity due after ten years	69.10%
Held-to-maturity securities, debt maturities due from five to ten years	$ 38,930
Held-to-maturity securities, debt maturities due from five to ten years, callable	20,800
Investment securities trading	0	$ 0
Equity securities	8,630	8,635
Federal Home Loan Bank stock	16,479	$ 13,792
Federal Home Loan Bank
Debt Securities, Available-for-sale [Line Items]
Available-for-sale securities available to be pledged as collateral for borrowings	$ 3,700

Investment Securities - Gains a

Investment Securities - Gains and Losses on Sales and Calls of Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Proceeds from sale of available-for-sale securities	$ 0	$ 0	$ 2,037	$ 0
Proceeds from call of available-for-sale securities	4,081	16,675	4,081	21,675
Total proceeds from sale and call of available-for-sale securities	4,081	16,675	6,118	21,675
Gross realized gains on available-for-sale securities	4	241	6	241
Gross realized losses on available-for-sale securities	3	0	3	2
Net realized gains (losses) on sale and call of available-for-sale securities	1	241	3	239
Proceeds from sale of held-to-maturity securities	0	0	0	0
Proceeds from call of held-to-maturity securities	105	0	1,000	0
Total proceeds from sale and call of held-to-maturity securities	105	0	1,000	0
Gross realized gains on held-to-maturity securities	0	0	3	0
Gross realized losses on held-to-maturity securities	0	0	0	0
Net realized gains (losses) on sale and call of held-to-maturity securities	$ 0	$ 0	$ 3	$ 0

Investment Securities - Unreali

Investment Securities - Unrealized Losses (Details) $ in Thousands	Jun. 30, 2018USD ($)position	Dec. 31, 2017USD ($)position
Fair value, Debt securities available-for-sale
Less than 12 Months	$ 101,406	$ 34,548
12 Months or More	12,576	43,058
Total	113,982	77,606
Unrealized losses, Debt securities available-for-sale
Less than 12 Months	1,316	154
12 Months or More	341	221
Total	1,657	375
Fair value, Debt securities held-to-maturity
Less than 12 Months	31,336	8,457
12 Months or More	0	0
Total	31,336	8,457
Unrealized losses, Debt securities held-to-maturity
Less than 12 Months	196	44
12 Months or More	0	0
Total	196	44
Fair value, Equity Securities
Less than 12 Months	0	0
12 Months or More	8,630	8,635
Total	8,630	8,635
Unrealized losses, Equity Securities
Less than 12 Months	0	0
12 Months or More	410	275
Total	410	275
Less than 12 months, fair value, total impaired securities	132,742	43,005
Less than 12 months, unrealized losses, total impaired securities	1,512	198
12 months or more, fair value, total impaired securities	21,206	51,693
12 months or more, unrealized losses, total impaired securities	751	496
Total, fair value, total impaired securities	153,948	94,698
Total, unrealized losses, total impaired securities	$ 2,263	$ 694
Available-for-sale, number of positions in an unrealized loss position | position	63	28
Held-to-maturity, number of positions in an unrealized loss position | position	25	8
Equity, number of positions in an unrealized loss position | position	2	2
Corporate bonds
Fair value, Debt securities available-for-sale
Less than 12 Months	$ 86,824	$ 29,995
12 Months or More	0	0
Total	86,824	29,995
Unrealized losses, Debt securities available-for-sale
Less than 12 Months	1,136	143
12 Months or More	0	0
Total	1,136	143
Fair value, Debt securities held-to-maturity
Less than 12 Months	5,404	2,406
12 Months or More	0	0
Total	5,404	2,406
Unrealized losses, Debt securities held-to-maturity
Less than 12 Months	33	33
12 Months or More	0	0
Total	33	33
Non-agency collateralized loan obligations
Fair value, Debt securities available-for-sale
Less than 12 Months	0	0
12 Months or More	622	805
Total	622	805
Unrealized losses, Debt securities available-for-sale
Less than 12 Months	0	0
12 Months or More	4	6
Total	4	6
Agency collateralized mortgage obligations
Fair value, Debt securities available-for-sale
Less than 12 Months	1,731	1,593
12 Months or More	3,928	32,816
Total	5,659	34,409
Unrealized losses, Debt securities available-for-sale
Less than 12 Months	1	1
12 Months or More	3	75
Total	4	76
Agency mortgage-backed securities
Fair value, Debt securities available-for-sale
Less than 12 Months	5,551	2,960
12 Months or More	8,026	9,437
Total	13,577	12,397
Unrealized losses, Debt securities available-for-sale
Less than 12 Months	93	10
12 Months or More	334	140
Total	427	150
Agency debentures
Fair value, Debt securities available-for-sale
Less than 12 Months	7,300
12 Months or More	0
Total	7,300
Unrealized losses, Debt securities available-for-sale
Less than 12 Months	86
12 Months or More	0
Total	86
Fair value, Debt securities held-to-maturity
Less than 12 Months	10,841
12 Months or More	0
Total	10,841
Unrealized losses, Debt securities held-to-maturity
Less than 12 Months	40
12 Months or More	0
Total	40
Municipal bonds
Fair value, Debt securities held-to-maturity
Less than 12 Months	15,091	6,051
12 Months or More	0	0
Total	15,091	6,051
Unrealized losses, Debt securities held-to-maturity
Less than 12 Months	123	11
12 Months or More	0	0
Total	$ 123	$ 11

Loans - Loans by Class (Details

Loans - Loans by Class (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net of deferred fees and costs	$ 4,552,928		$ 4,184,244
Allowance for loan losses	(15,321)	$ (14,818)	(14,417)	$ (15,968)	$ (16,185)	$ (18,762)
Loans held-for-investment, net	4,537,607		4,169,827
Loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, before deferred fees and costs	4,551,048		4,182,837
Deferred loan costs (fees)	1,880		1,407
Loans held-for-investment, net of deferred fees and costs	4,552,928		4,184,244
Allowance for loan losses	(15,321)		(14,417)
Loans held-for-investment, net	4,537,607		4,169,827
Private Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net of deferred fees and costs	2,488,162		2,265,737
Allowance for loan losses	(1,557)	(1,556)	(1,577)	(1,448)	(1,421)	(1,424)
Private Banking | Loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, before deferred fees and costs	2,483,285		2,261,625
Deferred loan costs (fees)	4,877		4,112
Loans held-for-investment, net of deferred fees and costs	2,488,162		2,265,737
Allowance for loan losses	(1,557)		(1,577)
Loans held-for-investment, net	2,486,605		2,264,160
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net of deferred fees and costs	741,901		667,684
Allowance for loan losses	(8,786)	(8,466)	(8,043)	(9,901)	(10,436)	(12,326)
Commercial and Industrial | Loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, before deferred fees and costs	741,445		667,028
Deferred loan costs (fees)	456		656
Loans held-for-investment, net of deferred fees and costs	741,901		667,684
Allowance for loan losses	(8,786)		(8,043)
Loans held-for-investment, net	733,115		659,641
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net of deferred fees and costs	1,322,865		1,250,823
Allowance for loan losses	(4,978)	$ (4,796)	(4,797)	$ (4,619)	$ (4,328)	$ (5,012)
Commercial Real Estate | Loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, before deferred fees and costs	1,326,318		1,254,184
Deferred loan costs (fees)	(3,453)		(3,361)
Loans held-for-investment, net of deferred fees and costs	1,322,865		1,250,823
Allowance for loan losses	(4,978)		(4,797)
Loans held-for-investment, net	$ 1,317,887		$ 1,246,026

Loans - Narrative (Details)

Loans - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unused commitments	$ 2,960,000		$ 2,370,000
Reserve for losses on unfunded commitments	504		504
Loans in the process of origination	72,500		53,300
Standby letters of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unused commitments	66,800		$ 74,800
Standby letters of credit drawn	$ 5,700	$ 191

Allowance for Loan Losses - Nar

Allowance for Loan Losses - Narrative (Details)	6 Months Ended		12 Months Ended
	Jun. 30, 2018USD ($)portfolioloans	Jun. 30, 2017USD ($)loans	Dec. 31, 2017USD ($)
Financing Receivable, Recorded Investment [Line Items]
Number of loan portfolios | portfolio	3
Impaired loans	$ 5,654,000		$ 6,554,000
Interest income on impaired loans	0		0
Loans 90 days or more past due and still accruing	0		0
Related allowance on impaired loans	2,437,000		2,507,000
Unused commitments for loans modified as TDRs	706,000		708,000
Payment defaults for loans modified as TDRs	$ 186,000	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Real estate acquired through foreclosure	$ 3,600,000		3,600,000
Mortgage loans in process of foreclosure	$ 0
Minimum
Financing Receivable, Recorded Investment [Line Items]
Past due period for loans (in days)	90 days
Private Banking
Financing Receivable, Recorded Investment [Line Items]
Impaired loans	$ 298,000		368,000
Related allowance on impaired loans	$ 298,000		$ 368,000
Concentration risk, percentage | Cash and marketable securities collateral risk | Private Banking
Financing Receivable, Recorded Investment [Line Items]
Percentage of private banking loans secured by cash and marketable securities	95.70%		94.60%

Allowance for Loan Losses - Cre

Allowance for Loan Losses - Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	$ 4,552,928	$ 4,184,244
Private Banking
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	2,488,162	2,265,737
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	741,901	667,684
Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	1,322,865	1,250,823
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	4,522,918	4,154,328
Pass | Private Banking
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	2,487,864	2,265,369
Pass | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	714,039	639,987
Pass | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	1,321,015	1,248,972
Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	24,356	26,733
Special mention | Private Banking
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	0	0
Special mention | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	22,506	24,882
Special mention | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	1,850	1,851
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	5,654	3,183
Substandard | Private Banking
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	298	368
Substandard | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	5,356	2,815
Substandard | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans held-for-investment	$ 0	$ 0

Allowance for Loan Losses - Cha

Allowance for Loan Losses - Changes in Allowance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	$ 14,818	$ 16,185	$ 14,417	$ 18,762
Provision (credit) for loan losses	415	516	610	759
Charge-offs	0	(1,000)	0	(3,889)
Recoveries	88	267	294	336
Balance, end of period	15,321	15,968	15,321	15,968
Private Banking
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	1,556	1,421	1,577	1,424
Provision (credit) for loan losses	1	27	(20)	24
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	1,557	1,448	1,557	1,448
Commercial and Industrial
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	8,466	10,436	8,043	12,326
Provision (credit) for loan losses	232	198	449	1,128
Charge-offs	0	(1,000)	0	(3,889)
Recoveries	88	267	294	336
Balance, end of period	8,786	9,901	8,786	9,901
Commercial Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	4,796	4,328	4,797	5,012
Provision (credit) for loan losses	182	291	181	(393)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	$ 4,978	$ 4,619	$ 4,978	$ 4,619

Allowance for Loan Losses - Ana

Allowance for Loan Losses - Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	$ 2,509	$ 3,115
Current	4,550,419	4,181,129
Loans held-for-investment, net of deferred fees and costs	4,552,928	4,184,244
Private Banking
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	370	1,266
Current	2,487,792	2,264,471
Loans held-for-investment, net of deferred fees and costs	2,488,162	2,265,737
Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	2,139	0
Current	739,762	667,684
Loans held-for-investment, net of deferred fees and costs	741,901	667,684
Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	0	1,849
Current	1,322,865	1,248,974
Loans held-for-investment, net of deferred fees and costs	1,322,865	1,250,823
30-59 Days Past Due
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	280	3,115
30-59 Days Past Due | Private Banking
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	280	1,266
30-59 Days Past Due | Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	0	0
30-59 Days Past Due | Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	0	1,849
60-89 Days Past Due
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	90	0
60-89 Days Past Due | Private Banking
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	90	0
60-89 Days Past Due | Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	0	0
60-89 Days Past Due | Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	0	0
Loans Past Due 90 Days or More
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	2,139	0
Loans Past Due 90 Days or More | Private Banking
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	0	0
Loans Past Due 90 Days or More | Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	2,139	0
Loans Past Due 90 Days or More | Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Past Due	$ 0	$ 0

Allowance for Loan Losses - Imp

Allowance for Loan Losses - Impaired Loans (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Recorded Investment
With a related allowance	$ 2,437	$ 3,183
Without a related allowance	3,217	3,371
Total	5,654	6,554
Unpaid Principal Balance
With a related allowance	2,962	3,676
Without a related allowance	5,072	5,330
Total	8,034	9,006
Related Allowance	2,437	2,507
Average Recorded Investment
With a related allowance	2,467	3,505
Without a related allowance	3,321	4,224
Total	5,788	7,729
Interest Income Recognized
With a related allowance	0	0
Without a related allowance	112	146
Total	112	146
Private Banking
Recorded Investment
With a related allowance	298	368
Without a related allowance	0	0
Total	298	368
Unpaid Principal Balance
With a related allowance	477	541
Without a related allowance	0	0
Total	477	541
Related Allowance	298	368
Average Recorded Investment
With a related allowance	328	438
Without a related allowance	0	0
Total	328	438
Interest Income Recognized
With a related allowance	0	0
Without a related allowance	0	0
Total	0	0
Commercial and Industrial
Recorded Investment
With a related allowance	2,139	2,815
Without a related allowance	3,217	3,371
Total	5,356	6,186
Unpaid Principal Balance
With a related allowance	2,485	3,135
Without a related allowance	5,072	5,330
Total	7,557	8,465
Related Allowance	2,139	2,139
Average Recorded Investment
With a related allowance	2,139	3,067
Without a related allowance	3,321	4,224
Total	5,460	7,291
Interest Income Recognized
With a related allowance	0	0
Without a related allowance	112	146
Total	112	146
Commercial Real Estate
Recorded Investment
With a related allowance	0	0
Without a related allowance	0	0
Total	0	0
Unpaid Principal Balance
With a related allowance	0	0
Without a related allowance	0	0
Total	0	0
Related Allowance	0	0
Average Recorded Investment
With a related allowance	0	0
Without a related allowance	0	0
Total	0	0
Interest Income Recognized
With a related allowance	0	0
Without a related allowance	0	0
Total	$ 0	$ 0

Allowance for Loan Losses - All

Allowance for Loan Losses - Allowance (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Allowance for loan losses:
Individually evaluated for impairment	$ 2,437	$ 2,507
Collectively evaluated for impairment	12,884	11,910
Total allowance for loan losses	15,321	14,417
Loans held-for-investment:
Individually evaluated for impairment	5,654	6,554
Collectively evaluated for impairment	4,547,274	4,177,690
Loans held-for-investment, net of deferred fees and costs	4,552,928	4,184,244
Private Banking
Allowance for loan losses:
Individually evaluated for impairment	298	368
Collectively evaluated for impairment	1,259	1,209
Total allowance for loan losses	1,557	1,577
Loans held-for-investment:
Individually evaluated for impairment	298	368
Collectively evaluated for impairment	2,487,864	2,265,369
Loans held-for-investment, net of deferred fees and costs	2,488,162	2,265,737
Commercial and Industrial
Allowance for loan losses:
Individually evaluated for impairment	2,139	2,139
Collectively evaluated for impairment	6,647	5,904
Total allowance for loan losses	8,786	8,043
Loans held-for-investment:
Individually evaluated for impairment	5,356	6,186
Collectively evaluated for impairment	736,545	661,498
Loans held-for-investment, net of deferred fees and costs	741,901	667,684
Commercial Real Estate
Allowance for loan losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	4,978	4,797
Total allowance for loan losses	4,978	4,797
Loans held-for-investment:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,322,865	1,250,823
Loans held-for-investment, net of deferred fees and costs	$ 1,322,865	$ 1,250,823

Allowance for Loan Losses - Tro

Allowance for Loan Losses - Troubled Debt Restructuring (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Recorded investment	$ 5,654	$ 6,554
Performing loans accruing interest
Financing Receivable, Modifications [Line Items]
Recorded investment	3,217	3,371
Non-accrual loans
Financing Receivable, Modifications [Line Items]
Recorded investment	$ 2,437	$ 3,183

Deposits - Schedule of Deposits

Deposits - Schedule of Deposits by Type (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Interest Rate Range Domestic Deposit Liabilities [Abstract]
Interest-bearing checking accounts, interest rate minimum	0.05%
Interest-bearing checking accounts, interest rate maximum	2.49%
Money market deposit accounts, interest rate minimum	0.10%
Money market deposit accounts, interest rate maximum	2.90%
Certificates of deposit, interest rate minimum	1.10%
Certificates of deposit, interest rate maximum	3.22%
Weighted Average Interest Rate
Interest-bearing checking accounts	1.95%	1.42%
Money market deposit accounts	1.82%	1.37%
Certificates of deposit	2.10%	1.40%
Weighted average rate on interest-bearing accounts	1.91%	1.38%
Demand and savings accounts:
Noninterest-bearing checking accounts	$ 247,705	$ 248,092
Interest-bearing checking accounts	612,501	455,341
Money market deposit accounts	2,494,927	2,289,789
Total demand and savings accounts	3,355,133	2,993,222
Certificates of deposit	1,086,069	994,389
Total deposits	$ 4,441,202	$ 3,987,611

Deposits - Narrative (Details)

Deposits - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Deposits [Abstract]
Brokered deposits	$ 496.6	$ 1,070
Reciprocal non-brokered	655.8
Reciprocal deposits, brokered		627.5
Certificates of deposit, $100,000 or more, excluding brokered	472.4	440.2
Certificates of deposit, $250,000 or more, excluding brokered	$ 173.1	$ 191.4

Deposits - Contractual Maturiti

Deposits - Contractual Maturities of Time Deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Time Deposits, Rolling Year Maturity [Abstract]
12 months or less	$ 849,394	$ 874,733
12 months to 24 months	159,786	96,766
24 months to 36 months	76,889	22,890
Total	$ 1,086,069	$ 994,389

Deposits - Interest Expense on

Deposits - Interest Expense on Deposits by Type (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest Expense, Deposits [Abstract]
Interest-bearing checking accounts	$ 2,576	$ 759	$ 4,198	$ 1,121
Money market deposit accounts	9,722	5,150	17,834	9,248
Certificates of deposit	4,398	2,587	8,065	4,840
Total interest expense on deposits	$ 16,696	$ 8,496	$ 30,097	$ 15,209

Borrowings - Schedule of Borrow

Borrowings - Schedule of Borrowings (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2014
Debt Instrument [Line Items]
Total debt	$ 264,814	$ 335,913
Subordinated debt | Subordinated notes payable 5.75 percent
Debt Instrument [Line Items]
Long term debt interest rate	5.75%	5.75%
Long-term debt	$ 34,814	$ 34,713	$ 35,000
Deferred finance costs, net	$ 186	$ 287
Federal Home Loan Bank advances | Federal Home Loan Bank borrowings, issued 6/29/2018, maturity 7/2/2018
Debt Instrument [Line Items]
Short term debt interest rate	2.05%
Short-term debt	$ 80,000
Federal Home Loan Bank advances | Federal Home Loan Bank Borrowings, Issued 6/29/2018, Maturity 10/1/2018
Debt Instrument [Line Items]
Short term debt interest rate	2.20%
Short-term debt	$ 100,000
Federal Home Loan Bank advances | Federal Home Loan Bank Borrowings, Issued 4/9/2018, Maturity 7/9/2018
Debt Instrument [Line Items]
Short term debt interest rate	2.01%
Short-term debt	$ 50,000
Federal Home Loan Bank advances | Federal Home Loan Bank Borrowings, issued 12/29/2017, maturity 1/2/2018
Debt Instrument [Line Items]
Short term debt interest rate		1.57%
Short-term debt		$ 195,000
Federal Home Loan Bank advances | Federal Home Loan Bank Borrowings, issued 12/29/2017, maturity 3/29/2018
Debt Instrument [Line Items]
Short term debt interest rate		1.66%
Short-term debt		$ 100,000
Line of credit
Debt Instrument [Line Items]
Short term debt interest rate		4.56%
Short-term debt		$ 6,200

Borrowings - Narrative (Details

Borrowings - Narrative (Details) - USD ($)	Jun. 30, 2014	Jun. 30, 2018	Dec. 31, 2017
Line of credit
Short-term Debt [Line Items]
Short-term debt			$ 6,200,000
Federal Home Loan Bank
Short-term Debt [Line Items]
Pledged securities, for Federal Home Loan Bank		$ 3,700,000
Texas Capital Bank | Line of credit
Short-term Debt [Line Items]
Line of credit facility, current borrowing capacity		25,000,000
Subordinated debt | Subordinated notes payable 5.75 percent
Debt Instrument [Line Items]
Long-term debt	$ 35,000,000	34,814,000	34,713,000
Debt instrument, term (in years)	5 years
Interest rate	5.75%
Bank subsidiary | Federal Home Loan Bank advances
Short-term Debt [Line Items]
Short-term debt		230,000,000	$ 295,000,000
Bank subsidiary | Federal Home Loan Bank
Short-term Debt [Line Items]
Pledged securities, for Federal Home Loan Bank		3,700,000
Pledged loans receivable, for Federal Home Loan Bank		1,090,000,000
Bank subsidiary | Federal Home Loan Bank | Line of credit
Short-term Debt [Line Items]
Line of credit facility, current borrowing capacity		776,700,000
Bank subsidiary | M&T Bank | Line of credit
Short-term Debt [Line Items]
Line of credit facility, current borrowing capacity		10,000,000
Bank subsidiary | Texas Capital Bank | Line of credit
Short-term Debt [Line Items]
Line of credit facility, current borrowing capacity		20,000,000
Bank subsidiary | PNC Bank | Line of credit
Short-term Debt [Line Items]
Line of credit facility, current borrowing capacity		$ 2,000,000

Borrowings - Interest Expense o

Borrowings - Interest Expense on Borrowings by Type (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Debt Instrument [Line Items]
Interest expense on borrowings	$ 2,297	$ 1,586	$ 4,050	$ 2,694
Subordinated notes payable
Debt Instrument [Line Items]
Interest expense on borrowings	554	554	1,108	1,108
FHLB borrowings
Debt Instrument [Line Items]
Interest expense on borrowings	1,743	1,016	2,890	1,570
Line of credit borrowings
Debt Instrument [Line Items]
Interest expense on borrowings	$ 0	$ 16	$ 52	$ 16

Stock Transactions - Narrative

Stock Transactions - Narrative (Details) $ / shares in Units, $ in Thousands	1 Months Ended	6 Months Ended
	Mar. 31, 2018USD ($)$ / sharesshares	Jun. 30, 2018USD ($)$ / sharesshares	Jun. 30, 2017USD ($)$ / sharesshares	Apr. 27, 2018USD ($)$ / shares
Class of Stock [Line Items]
Net proceeds from issuance of preferred stock		$ 38,432	$ 0
Cost of shares repurchased		$ 2,462	$ 4,120
Depositary Share
Class of Stock [Line Items]
Issuance of shares (in shares) | shares	1,610,000
Conversion from depository to preferred shares	0.025
Liquidation preference (usd per share) | $ / shares	$ 25
Dividends payable (usd per share) | $ / shares				$ 0.47
Depositary Share | Public Offering
Class of Stock [Line Items]
Issuance of shares (in shares) | shares	1,400,000
Depositary Share | Underwriters
Class of Stock [Line Items]
Issuance of shares (in shares) | shares	210,000
Series A Preferred Stock
Class of Stock [Line Items]
Issuance of shares (in shares) | shares	40,250	40,250
Dividend rate	6.75%
Liquidation preference (usd per share) | $ / shares	$ 1,000
Net proceeds from issuance of preferred stock	$ 38,400
Basis spread	3.985%
Dividend payable				$ 762
Common Stock
Class of Stock [Line Items]
Stock repurchase program, remaining authorized repurchase amount		$ 2,500
Shares repurchased (shares) | shares		97,031	174,603
Cost of shares repurchased		$ 2,500	$ 4,100
Average cost per share (usd per share) | $ / shares		$ 25.37	$ 23.60

Stock Transactions - Shares Out

Stock Transactions - Shares Outstanding Activity (Details) - shares	1 Months Ended	6 Months Ended
	Mar. 31, 2018	Jun. 30, 2018	Jun. 30, 2017
Series A Preferred Stock
Number of Shares Outstanding [Rollforward]
Balance, beginning of period (shares)		0
Issuance of preferred stock	40,250	40,250
Balance, ending of period (shares)		40,250
Common Stock
Number of Shares Outstanding [Rollforward]
Balance, beginning of period (shares)		28,591,101	28,415,654
Issuance of restricted common stock		389,113	324,675
Forfeitures of restricted common stock		(22,000)
Exercise of stock options		86,700	100,000
Purchase of treasury stock		(97,031)	(174,603)
Balance, ending of period (shares)		28,947,883	28,665,726

Regulatory Capital - Narrative

Regulatory Capital - Narrative (Details)	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Regulatory Capital Requirements [Abstract]
Percentage conservation buffer required for capital adequacy to risk weighted assets, fully phased-in	2.50%
Percentage conservation buffer required for capital adequacy to risk weighted assets, one-year period phase-in	0.625%
Capital conservation buffer phase-in period (in years)	4 years
Percentage capital conservation buffer	1.875%	1.25%

Regulatory Capital - Regulatory

Regulatory Capital - Regulatory Capital Requirements (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Total risk-based capital (Amount)
Total risk-based capital	$ 402,817	$ 343,758
Total risk-based capital required for capital adequacy	$ 254,606	$ 234,576
Total risk-based capital (Ratio)
Total risk-based capital, ratio	12.66%	11.72%
Total risk-based capital required for capital adequacy, ratio	8.00%	8.00%
Tier 1 risk-based capital (Amount)
Tier 1 risk-based capital	$ 383,895	$ 326,594
Tier 1 risk-based capital required for capital adequacy	$ 190,954	$ 175,932
Tier 1 risk-based capital (Ratio)
Tier 1 risk-based capital, ratio	12.06%	11.14%
Tier 1 risk-based capital required for capital adequacy, ratio	6.00%	6.00%
Common Equity Tier One Risk Based Capital (Amount)
Common equity tier 1 risk-based capital	$ 348,211	$ 326,594
Common equity tier 1 risk-based capital required for capital adequacy	$ 143,216	$ 131,949
Common Equity Tier One Risk Based Capital (Ratio)
Common equity tier 1 risk-based capital, ratio	10.94%	11.14%
Common equity tier 1 risk-based capital required for capital adequacy, ratio	4.50%	4.50%
Tier 1 leverage (Amount)
Tier 1 leverage capital	$ 383,895	$ 326,594
Tier 1 leverage capital required for capital adequacy	$ 199,902	$ 180,090
Tier 1 leverage (Ratio)
Tier 1 leverage capital, ratio	7.68%	7.25%
Tier 1 leverage capital required for capital adequacy, ratio	4.00%	4.00%
Bank subsidiary
Total risk-based capital (Amount)
Total risk-based capital	$ 405,480	$ 348,378
Total risk-based capital required for capital adequacy	252,976	232,392
Total risk-based capital required to be well capitalized	$ 316,220	$ 290,490
Total risk-based capital (Ratio)
Total risk-based capital, ratio	12.82%	11.99%
Total risk-based capital required for capital adequacy, ratio	8.00%	8.00%
Total risk-based capital required to be well capitalized, ratio	10.00%	10.00%
Tier 1 risk-based capital (Amount)
Tier 1 risk-based capital	$ 391,440	$ 337,656
Tier 1 risk-based capital required for capital adequacy	189,732	174,294
Tier 1 risk-based capital required to be well capitalized	$ 252,976	$ 232,392
Tier 1 risk-based capital (Ratio)
Tier 1 risk-based capital, ratio	12.38%	11.62%
Tier 1 risk-based capital required for capital adequacy, ratio	6.00%	6.00%
Tier 1 risk-based capital required to be well capitalized, ratio	8.00%	8.00%
Common Equity Tier One Risk Based Capital (Amount)
Common equity tier 1 risk-based capital	$ 391,440	$ 337,656
Common equity tier 1 risk-based capital required for capital adequacy	142,299	130,720
Common equity tier 1 risk-based capital required to be well capitalized	$ 205,543	$ 188,818
Common Equity Tier One Risk Based Capital (Ratio)
Common equity tier 1 risk-based capital, ratio	12.38%	11.62%
Common equity tier 1 risk-based capital required for capital adequacy, ratio	4.50%	4.50%
Common equity tier 1 risk-based capital required to be well capitalized, ratio	6.50%	6.50%
Tier 1 leverage (Amount)
Tier 1 leverage capital	$ 391,440	$ 337,656
Tier 1 leverage capital required for capital adequacy	199,077	178,979
Tier 1 leverage capital required to be well capitalized	$ 248,846	$ 223,723
Tier 1 leverage (Ratio)
Tier 1 leverage capital, ratio	7.87%	7.55%
Tier 1 leverage capital required for capital adequacy, ratio	4.00%	4.00%
Tier 1 leverage capital required to be well capitalized, ratio	5.00%	5.00%

Earnings Per Common Share - Com

Earnings Per Common Share - Computation of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 13,830	$ 8,421	$ 24,231	$ 15,913
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic weighted average common shares outstanding (shares)	27,628,120	27,601,702	27,611,498	27,614,423
Restricted stock - dilutive (shares)	741,050	636,596	696,278	594,335
Stock options - dilutive (shares)	479,799	547,327	478,412	544,159
Diluted weighted average common shares outstanding (shares)	28,848,969	28,785,625	28,786,188	28,752,917
Earnings per common share:
Earnings per common share, basic (in usd per share)	$ 0.50	$ 0.31	$ 0.88	$ 0.58
Earnings per common share, diluted (in usd per share)	$ 0.48	$ 0.29	$ 0.84	$ 0.55
Anti-dilutive shares (shares)	19,000	0	22,500	0

Derivatives and Hedging Activ72

Derivatives and Hedging Activity - Financial Position, Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Asset derivatives, fair value	$ 24,917	$ 13,761
Liability derivatives, fair value	22,474	12,078
Other assets
Derivatives, Fair Value [Line Items]
Asset derivatives, fair value	24,917	13,761
Other liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives, fair value	22,474	12,078
Designated as hedging instrument | Other assets | Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset derivatives, fair value	2,493	1,650
Designated as hedging instrument | Other liabilities | Interest rate swaps
Derivatives, Fair Value [Line Items]
Liability derivatives, fair value	0	9
Not designated as hedging instrument | Other assets | Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset derivatives, fair value	22,424	12,111
Not designated as hedging instrument | Other liabilities | Interest rate swaps
Derivatives, Fair Value [Line Items]
Liability derivatives, fair value	$ 22,474	$ 12,069

Derivatives and Hedging Activ73

Derivatives and Hedging Activity - Offsetting of Derivative Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amounts of Recognized Assets	$ 24,917	$ 13,761
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Assets presented in the Statement of Financial Position	24,917	13,761
Financial Instruments	(3,137)	(5,677)
Cash Collateral Received	0	0
Net Amount	$ 21,780	$ 8,084

Derivatives and Hedging Activ74

Derivatives and Hedging Activity - Offsetting of Derivative Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amounts of Recognized Liabilities	$ 22,474	$ 12,078
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities presented in the Statement of Financial Position	22,474	12,078
Financial Instruments	(3,137)	(5,677)
Cash Collateral Posted	0	(124)
Net Amount	$ 19,337	$ 6,277

Derivatives and Hedging Activ75

Derivatives and Hedging Activity - Narrative (Details) - Interest rate swaps $ in Thousands	Jun. 30, 2018USD ($)
Derivatives, Fair Value [Line Items]
Termination value of derivatives, including accrued interest, in a net liability position	$ 145
Collateral already posted amount	1,100
Not designated as hedging instrument
Derivatives, Fair Value [Line Items]
Derivative, aggregate notional amount	$ 1,700,000

Derivatives and Hedging Activ76

Derivatives and Hedging Activity - Gain (Loss) in Statement of Financial Performance (Details) - Interest rate swaps - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Not designated as hedging instrument
Derivatives, Fair Value [Line Items]
Realized Gain (Loss) Recognized in Income on Derivatives	$ (3)	$ 106	$ 22	$ 12
Not designated as hedging instrument | Non-interest income
Derivatives, Fair Value [Line Items]
Realized Gain (Loss) Recognized in Income on Derivatives	(3)	106	22	12
Fair value hedging | Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Realized Gain (Loss) Recognized in Income on Derivatives	0	(15)	(9)	(28)
Fair value hedging | Designated as hedging instrument | Interest income
Derivatives, Fair Value [Line Items]
Realized Gain (Loss) Recognized in Income on Derivatives	0	(16)	(9)	(31)
Fair value hedging | Designated as hedging instrument | Non-interest income
Derivatives, Fair Value [Line Items]
Realized Gain (Loss) Recognized in Income on Derivatives	0	1	0	3
Cash flow hedging | Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Realized Gain (Loss) Recognized in Income on Derivatives	382	81	540	123
Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivatives	340	(242)	1,282	(156)
Cash flow hedging | Designated as hedging instrument | Interest expense
Derivatives, Fair Value [Line Items]
Realized Gain (Loss) Recognized in Income on Derivatives	382	81	540	123
Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivatives	$ 340	$ (242)	$ 1,282	$ (156)

Derivatives and Hedging Activ77

Derivatives and Hedging Activity - Interest Rate Derivative Transactions (Details) - Cash flow hedging - Interest rate swaps - Designated as hedging instrument $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Derivative [Line Items]
Notional Amount	$ 150,000
Estimated Increase/(Decrease) to Interest Expense in the Next Twelve Months	(1,913)
Issued 6/29/2016
Derivative [Line Items]
Notional Amount	100,000
Estimated Increase/(Decrease) to Interest Expense in the Next Twelve Months	$ (1,736)
Remaining Term (in Months)	12 months
Issued 1/8/2018
Derivative [Line Items]
Notional Amount	$ 50,000
Estimated Increase/(Decrease) to Interest Expense in the Next Twelve Months	$ (177)
Remaining Term (in Months)	30 months

Disclosures About Fair Value 78

Disclosures About Fair Value of Financial Instruments - Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financial assets:
Debt securities available-for-sale	$ 186,467	$ 138,850
Equity securities	8,630	8,635
Level 1
Financial assets:
Equity securities	8,630	8,635
Level 2
Financial assets:
Debt securities available-for-sale	186,467	138,850
Level 3
Financial liabilities:
Acquisition earn out liability	3,138	0
Fair value, measurements, recurring
Financial assets:
Total financial assets	220,014	161,246
Financial liabilities:
Acquisition earn out liability	3,138
Total financial liabilities	25,612	12,078
Fair value, measurements, recurring | Level 1
Financial assets:
Total financial assets	8,630	8,635
Financial liabilities:
Acquisition earn out liability	0
Total financial liabilities	0	0
Fair value, measurements, recurring | Level 2
Financial assets:
Total financial assets	211,384	152,611
Financial liabilities:
Acquisition earn out liability	0
Total financial liabilities	22,474	12,078
Fair value, measurements, recurring | Level 3
Financial assets:
Total financial assets	0	0
Financial liabilities:
Acquisition earn out liability	3,138
Total financial liabilities	3,138	0
Fair value, measurements, recurring | Interest rate swaps
Financial assets:
Interest rate swaps	24,917	13,761
Financial liabilities:
Interest rate swaps	22,474	12,078
Fair value, measurements, recurring | Interest rate swaps | Level 1
Financial assets:
Interest rate swaps	0	0
Financial liabilities:
Interest rate swaps	0	0
Fair value, measurements, recurring | Interest rate swaps | Level 2
Financial assets:
Interest rate swaps	24,917	13,761
Financial liabilities:
Interest rate swaps	22,474	12,078
Fair value, measurements, recurring | Interest rate swaps | Level 3
Financial assets:
Interest rate swaps	0	0
Financial liabilities:
Interest rate swaps	0	0
Fair value, measurements, recurring | Corporate bonds
Financial assets:
Debt securities available-for-sale	98,614	61,689
Fair value, measurements, recurring | Corporate bonds | Level 1
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Corporate bonds | Level 2
Financial assets:
Debt securities available-for-sale	98,614	61,689
Fair value, measurements, recurring | Corporate bonds | Level 3
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Trust preferred securities
Financial assets:
Debt securities available-for-sale	18,417	18,581
Fair value, measurements, recurring | Trust preferred securities | Level 1
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Trust preferred securities | Level 2
Financial assets:
Debt securities available-for-sale	18,417	18,581
Fair value, measurements, recurring | Trust preferred securities | Level 3
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Non-agency collateralized loan obligations
Financial assets:
Debt securities available-for-sale	622	805
Fair value, measurements, recurring | Non-agency collateralized loan obligations | Level 1
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Non-agency collateralized loan obligations | Level 2
Financial assets:
Debt securities available-for-sale	622	805
Fair value, measurements, recurring | Non-agency collateralized loan obligations | Level 3
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Agency collateralized mortgage obligations
Financial assets:
Debt securities available-for-sale	36,798	38,822
Fair value, measurements, recurring | Agency collateralized mortgage obligations | Level 1
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Agency collateralized mortgage obligations | Level 2
Financial assets:
Debt securities available-for-sale	36,798	38,822
Fair value, measurements, recurring | Agency collateralized mortgage obligations | Level 3
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Agency mortgage-backed securities
Financial assets:
Debt securities available-for-sale	21,617	18,953
Fair value, measurements, recurring | Agency mortgage-backed securities | Level 1
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Agency mortgage-backed securities | Level 2
Financial assets:
Debt securities available-for-sale	21,617	18,953
Fair value, measurements, recurring | Agency mortgage-backed securities | Level 3
Financial assets:
Debt securities available-for-sale	0	0
Fair value, measurements, recurring | Agency debentures
Financial assets:
Debt securities available-for-sale	10,399
Fair value, measurements, recurring | Agency debentures | Level 1
Financial assets:
Debt securities available-for-sale	0
Fair value, measurements, recurring | Agency debentures | Level 2
Financial assets:
Debt securities available-for-sale	10,399
Fair value, measurements, recurring | Agency debentures | Level 3
Financial assets:
Debt securities available-for-sale	0
Fair value, measurements, recurring | Equity securities
Financial assets:
Equity securities	8,630	8,635
Fair value, measurements, recurring | Equity securities | Level 1
Financial assets:
Equity securities	8,630	8,635
Fair value, measurements, recurring | Equity securities | Level 2
Financial assets:
Equity securities	0	0
Fair value, measurements, recurring | Equity securities | Level 3
Financial assets:
Equity securities	$ 0	$ 0

Disclosures About Fair Value 79

Disclosures About Fair Value of Financial Instruments - Fair Value Measurements, Nonrecurring (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Level 3
Financial assets:
Other real estate owned	$ 3,576	$ 3,576
Fair value, measurements, nonrecurring
Financial assets:
Loans measured for impairment, net	3,217	4,047
Other real estate owned	3,576	3,576
Total assets	6,793	7,623
Fair value, measurements, nonrecurring | Level 1
Financial assets:
Loans measured for impairment, net	0	0
Other real estate owned	0	0
Total assets	0	0
Fair value, measurements, nonrecurring | Level 2
Financial assets:
Loans measured for impairment, net	0	0
Other real estate owned	0	0
Total assets	0	0
Fair value, measurements, nonrecurring | Level 3
Financial assets:
Loans measured for impairment, net	3,217	4,047
Other real estate owned	3,576	3,576
Total assets	$ 6,793	$ 7,623

Disclosures About Fair Value 80

Disclosures About Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Specific allowance for loan losses	$ 2,437	$ 2,507

Disclosures About Fair Value 81

Disclosures About Fair Value of Financial Instruments - Fair Value Inputs, Assets, Quantitative Information (Details) - Level 3 $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Acquisition earn out liability | Income approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 3,138
Acquisition earn out liability | Income approach | Run-rate revenue multiple; client retention
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Acquisition earn out liability multiple	1.6
Loans measured for impairment, net | Discounted cash flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 3,217	$ 3,371
Loans measured for impairment, net | Discounted cash flow | Discount due to restructured nature of operations/Discount due to salability conditions
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Weighted Average Multiple/ Discount Rate	6.00%	6.00%
Loans measured for impairment, net | Appraisal value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value		$ 676
Loans measured for impairment, net | Appraisal value | Discount due to restructured nature of operations/Discount due to salability conditions
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Weighted Average Multiple/ Discount Rate		0.00%
Other real estate owned | Appraisal value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 3,576	$ 3,576
Other real estate owned | Appraisal value | Discount due to restructured nature of operations/Discount due to salability conditions
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Weighted Average Multiple/ Discount Rate	10.00%	10.00%

Disclosures About Fair Value 82

Disclosures About Fair Value of Financial Instruments - Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financial assets:
Debt securities available-for-sale	$ 186,467	$ 138,850
Debt securities held-to-maturity	77,283	60,141
Equity securities	8,630	8,635
Investment management fees receivable, net	7,835	7,720
Interest rate swaps	24,917	13,761
Financial liabilities:
Interest rate swaps	22,474	12,078
Level 1
Financial assets:
Cash and cash equivalents	164,367	156,153
Equity securities	8,630	8,635
Level 2
Financial assets:
Debt securities available-for-sale	186,467	138,850
Debt securities held-to-maturity	77,283	60,141
Federal Home Loan Bank stock	16,479	13,792
Accrued interest receivable	16,187	13,519
Investment management fees receivable, net	7,835	7,720
Bank owned life insurance	67,451	66,593
Interest rate swaps	24,917	13,761
Financial liabilities:
Deposits	4,436,176	3,985,883
Borrowings, net	264,670	336,051
Interest rate swaps	22,474	12,078
Level 3
Financial assets:
Loans held-for-investment, net	4,540,877	4,167,775
Other real estate owned	3,576	3,576
Financial liabilities:
Acquisition earn out liability	3,138	0
Carrying amount | Level 1
Financial assets:
Cash and cash equivalents	164,367	156,153
Equity securities	8,630	8,635
Carrying amount | Level 2
Financial assets:
Debt securities available-for-sale	186,467	138,850
Debt securities held-to-maturity	77,098	59,275
Federal Home Loan Bank stock	16,479	13,792
Accrued interest receivable	16,187	13,519
Investment management fees receivable, net	7,835	7,720
Bank owned life insurance	67,451	66,593
Interest rate swaps	24,917	13,761
Financial liabilities:
Deposits	4,441,202	3,987,611
Borrowings, net	264,814	335,913
Interest rate swaps	22,474	12,078
Carrying amount | Level 3
Financial assets:
Loans held-for-investment, net	4,537,607	4,169,827
Other real estate owned	3,576	3,576
Financial liabilities:
Acquisition earn out liability	$ 3,138	$ 0

Changes in Accumulated Other 83

Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			$ 389,071	$ 351,807
Reclassification for equity securities under ASU 2016-01 (see Note 1)					$ 534
Net other comprehensive income (loss)	$ (600)	$ 345	(761)	557
Ending balance	453,894	367,639	453,894	367,639
Investment Securities
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(265)	(113)	172	(297)
Change in unrealized holding gains (losses)	(567)	707	(1,325)	890
Gains reclassified from other comprehensive income	(1)	(155)	(5)	(154)
Ending balance	(833)	439	(833)	439
Investment Securities | Adjustments for New Accounting Pronouncement
Accumulated Other Comprehensive Income [Roll Forward]
Net other comprehensive income (loss)	(568)	552	(1,005)	736
Investment Securities | ASU 2016-01
Accumulated Other Comprehensive Income [Roll Forward]
Reclassification for equity securities under ASU 2016-01 (see Note 1)					286	$ 0
Investment Securities | ASU 2018-02
Accumulated Other Comprehensive Income [Roll Forward]
Reclassification for certain income tax effects under ASU 2018-02 (see Note 1)			39	0
Derivatives
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	1,910	1,155	1,074	1,127
Change in unrealized holding gains (losses)	261	(155)	983	(100)
Gains reclassified from other comprehensive income	(293)	(52)	(414)	(79)
Ending balance	1,878	948	1,878	948
Derivatives | Adjustments for New Accounting Pronouncement
Accumulated Other Comprehensive Income [Roll Forward]
Net other comprehensive income (loss)	(32)	(207)	804	(179)
Derivatives | ASU 2016-01
Accumulated Other Comprehensive Income [Roll Forward]
Reclassification for equity securities under ASU 2016-01 (see Note 1)					0	0
Derivatives | ASU 2018-02
Accumulated Other Comprehensive Income [Roll Forward]
Reclassification for certain income tax effects under ASU 2018-02 (see Note 1)			235	0
Total
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	1,645	1,042	1,246	830
Change in unrealized holding gains (losses)	(306)	552	(342)	790
Gains reclassified from other comprehensive income	(294)	(207)	(419)	(233)
Net other comprehensive income (loss)			(761)	557
Ending balance	1,045	1,387	1,045	1,387
Total | Adjustments for New Accounting Pronouncement
Accumulated Other Comprehensive Income [Roll Forward]
Net other comprehensive income (loss)	$ (600)	$ 345	(201)	557
Total | ASU 2016-01
Accumulated Other Comprehensive Income [Roll Forward]
Reclassification for equity securities under ASU 2016-01 (see Note 1)					$ 286	$ 0
Total | ASU 2018-02
Accumulated Other Comprehensive Income [Roll Forward]
Reclassification for certain income tax effects under ASU 2018-02 (see Note 1)			$ 274	$ 0

Segments - Schedule of Segment

Segments - Schedule of Segment Reporting Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)segment	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			2
Assets	$ 5,233,936		$ 5,233,936		$ 4,777,897
Income statement data:
Interest income	47,784	$ 32,115	89,200	$ 60,852
Interest expense	18,993	10,082	34,147	17,903
Net interest income (loss)	28,791	22,033	55,053	42,949
Provision for loan losses	415	516	610	759
Net interest income (loss) after provision for loan losses	28,376	21,517	54,443	42,190
Non-interest income:
Net gain on the sale and call of debt securities	1	241	6	239
Other non-interest income	2,815	2,341	4,991	4,412
Total non-interest income	12,502	11,712	23,591	23,121
Non-interest expense:
Intangible amortization expense	502	462	963	925
Other non-interest expense	24,816	21,322	48,205	42,017
Total non-interest expense	25,318	21,784	49,168	42,942
Income (loss) before tax	15,560	11,445	28,866	22,369
Income tax expense (benefit)	968	3,024	3,873	6,456
Net income (loss)	14,592	8,421	24,993	15,913
Investment management fees
Non-interest income:
Total non-interest income	9,686	9,130	18,594	18,470
Parent and other
Segment Reporting Information [Line Items]
Assets	651		651		1,423
Income statement data:
Interest income	64	68	129	144
Interest expense	553	567	1,157	1,118
Net interest income (loss)	(489)	(499)	(1,028)	(974)
Provision for loan losses	0	0	0	0
Net interest income (loss) after provision for loan losses	(489)	(499)	(1,028)	(974)
Non-interest income:
Net gain on the sale and call of debt securities	0	0	0	0
Other non-interest income	(35)	0	(36)	0
Total non-interest income	(92)	(52)	(149)	(108)
Non-interest expense:
Intangible amortization expense	0	0	0	0
Other non-interest expense	351	22	380	73
Total non-interest expense	351	22	380	73
Income (loss) before tax	(932)	(573)	(1,557)	(1,155)
Income tax expense (benefit)	(264)	(220)	(440)	(443)
Net income (loss)	(668)	(353)	(1,117)	(712)
Parent and other | Investment management fees
Non-interest income:
Total non-interest income	(57)	(52)	(113)	(108)
Bank | Operating segments
Segment Reporting Information [Line Items]
Assets	5,143,547		5,143,547		4,691,760
Income statement data:
Interest income	47,720	32,047	89,071	60,708
Interest expense	18,440	9,515	32,990	16,785
Net interest income (loss)	29,280	22,532	56,081	43,923
Provision for loan losses	415	516	610	759
Net interest income (loss) after provision for loan losses	28,865	22,016	55,471	43,164
Non-interest income:
Net gain on the sale and call of debt securities	1	241	6	239
Other non-interest income	2,849	2,341	5,026	4,411
Total non-interest income	2,850	2,582	5,032	4,650
Non-interest expense:
Intangible amortization expense	0	0	0	0
Other non-interest expense	16,223	13,688	32,010	27,293
Total non-interest expense	16,223	13,688	32,010	27,293
Income (loss) before tax	15,492	10,910	28,493	20,521
Income tax expense (benefit)	955	2,819	3,809	5,747
Net income (loss)	14,537	8,091	24,684	14,774
Bank | Operating segments | Investment management fees
Non-interest income:
Total non-interest income	0	0	0	0
Investment management | Operating segments
Segment Reporting Information [Line Items]
Assets	89,738		89,738		$ 84,714
Income statement data:
Interest income	0	0	0	0
Interest expense	0	0	0	0
Net interest income (loss)	0	0	0	0
Provision for loan losses	0	0	0	0
Net interest income (loss) after provision for loan losses	0	0	0	0
Non-interest income:
Net gain on the sale and call of debt securities	0	0	0	0
Other non-interest income	1	0	1	1
Total non-interest income	9,744	9,182	18,708	18,579
Non-interest expense:
Intangible amortization expense	502	462	963	925
Other non-interest expense	8,242	7,612	15,815	14,651
Total non-interest expense	8,744	8,074	16,778	15,576
Income (loss) before tax	1,000	1,108	1,930	3,003
Income tax expense (benefit)	277	425	504	1,152
Net income (loss)	723	683	1,426	1,851
Investment management | Operating segments | Investment management fees
Non-interest income:
Total non-interest income	$ 9,743	$ 9,182	$ 18,707	$ 18,578

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 17, 2018	Apr. 27, 2018
Series A Preferred Stock
Subsequent Event [Line Items]
Dividend payable		$ 762
Series A Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Dividend payable	$ 679
Depositary Share
Subsequent Event [Line Items]
Dividends payable (usd per share)		$ 0.47
Depositary Share | Subsequent Event
Subsequent Event [Line Items]
Dividends payable (usd per share)	$ 0.42