CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
ASSETS
Cash and due from banks	$ 31,813us-gaap_CashAndDueFromBanks	$ 82,692us-gaap_CashAndDueFromBanks
Interest-bearing deposits with banks	95,034us-gaap_InterestBearingDepositsInBanks
Cash and due from banks	126,847	82,692
Investment securities:
Securities available-for-sale	289,532us-gaap_AvailableForSaleSecurities	323,070us-gaap_AvailableForSaleSecurities
Securities held-to-maturity (fair value of $231,445 and $210,958)	224,682us-gaap_HeldToMaturitySecurities	215,286us-gaap_HeldToMaturitySecurities
Loans receivable	2,538,641	960,943
Less: Allowance for loan losses	14,160	10,333
Net loans receivable	2,524,481	950,610
Investment in restricted stock, at cost	23,535us-gaap_InvestmentOwnedRestrictedCost	8,986us-gaap_InvestmentOwnedRestrictedCost
Bank premises and equipment, net	20,653us-gaap_PropertyPlantAndEquipmentNet	13,681us-gaap_PropertyPlantAndEquipmentNet
Accrued interest receivable	11,700us-gaap_InterestReceivable	6,802us-gaap_InterestReceivable
Bank-owned life insurance	52,518us-gaap_BankOwnedLifeInsurance	35,734us-gaap_BankOwnedLifeInsurance
Other real estate owned	1,108us-gaap_OtherRealEstate	220us-gaap_OtherRealEstate
Due from brokers for investment securities		8,759us-gaap_DueFromCorrespondentBrokers
Goodwill	145,909us-gaap_Goodwill	16,804us-gaap_Goodwill
Core deposit intangibles	4,825us-gaap_FiniteLivedCoreDepositsGross	24us-gaap_FiniteLivedCoreDepositsGross
Other assets	22,782us-gaap_OtherAssets	10,414us-gaap_OtherAssets
Total assets	3,448,572us-gaap_Assets	1,673,082us-gaap_Assets
Deposits:
Noninterest-bearing	492,516	227,370
Interest-bearing	1,983,091	1,114,635
Total deposits	2,475,607us-gaap_Deposits	1,342,005us-gaap_Deposits
Borrowings	495,553us-gaap_LongTermDebt	146,000us-gaap_LongTermDebt
Subordinated debentures	5,155us-gaap_SubordinatedDebt	5,155us-gaap_SubordinatedDebt
Accounts payable and accrued liabilities	26,038	11,338
Total liabilities	3,002,353us-gaap_Liabilities	1,504,498us-gaap_Liabilities
Commitments and Contingencies
Stockholders’ Equity
Preferred Stock, $1,000 liquidation value per share: Authorized 5,000,000 shares; issued and outstanding 11,250 shares of Series B preferred stock at December 31, 2014 and 2013; total liquidation value of $11,250 at December 31, 2014 and 2013	11,250us-gaap_PreferredStockValue	11,250us-gaap_PreferredStockValue
Common stock, no par value: Authorized 50,000,000 shares; issued 31,758,558 shares at December 31, 2014 and 18,477,412 shares at December 31, 2013; outstanding 29,694,636 shares at December 31, 2014 and 16,369,012 at December 31, 2013	374,287us-gaap_CommonStockValue	110,056us-gaap_CommonStockValue
Additional paid-in capital	6,015us-gaap_AdditionalPaidInCapital	4,986us-gaap_AdditionalPaidInCapital
Retained earnings	72,398	61,914
Treasury stock, at cost (2,063,922 shares at December 31, 2014 and 2,108,400 at December 31, 2013)	(16,717)us-gaap_TreasuryStockValue	(17,078)us-gaap_TreasuryStockValue
Accumulated other comprehensive loss	(1,014)	(2,544)
Total stockholders’ equity	446,219us-gaap_StockholdersEquity	168,584us-gaap_StockholdersEquity
Total liabilities and stockholders’ equity	$ 3,448,572	$ 1,673,082

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Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.