Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and due from banks	$ 174,147	$ 155,055
Interest-bearing deposits in other banks	252,753	107,093
Trading securities, at fair value	20,425	17,920
Securities available-for-sale, at fair value	1,732,984	1,919,450
Securities held-to-maturity, at amortized cost	14,638	22,291
Federal Home Loan Bank (FHLB) and Federal Reserve Bank (FRB) stock, at cost	69,708	59,131
Loans	10,390,292	8,254,145
Allowance for loan losses	(94,814)	(86,083)
Net loans	10,295,478	8,168,062
Other real estate owned (OREO)	19,873	26,083
Premises, furniture, and equipment, net	131,295	82,577
Investment in bank-owned life insurance (BOLI)	279,639	219,746
Goodwill and other intangible assets	750,436	366,876
Accrued interest receivable and other assets	525,766	278,271
Total assets	14,267,142	11,422,555
Liabilities
Noninterest-bearing deposits	3,580,922	2,766,748
Interest-bearing deposits	7,627,575	6,061,855
Total deposits	11,208,497	8,828,603
Borrowed funds	700,536	879,008
Senior and subordinated debt	195,028	194,603
Accrued interest payable and other liabilities	297,951	263,261
Total liabilities	12,402,012	10,165,475
Stockholders' Equity
Common stock	1,123	913
Additional paid-in capital	1,029,002	498,937
Retained earnings	1,082,921	1,016,674
Accumulated other comprehensive loss, net of tax	(38,036)	(40,910)
Treasury stock, at cost	(209,880)	(218,534)
Total stockholders' equity	1,865,130	1,257,080
Total liabilities and stockholders' equity	$ 14,267,142	$ 11,422,555
Stockholders' Equity, Number of Shares, Par Value, and Other Disclosures
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Common stock, shares authorized (in shares)	250,000,000	150,000,000
Common stock, shares issued (in shares)	112,348,000	91,284,000
Common stock, shares outstanding (in shares)	102,722,000	81,325,000
Treasury stock, shares (in shares)	9,626,000	9,959,000