Interim Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest income:
Loans	$ 51,198	$ 47,262	$ 100,704	$ 89,996
Investment securities	5,419	4,002	11,051	7,055
Other	125	27	261	294
Total interest income	56,742	51,291	112,016	97,345
Interest expense:
Deposits	5,867	4,449	11,490	8,018
Federal Home Loan Bank advances	2,368	1,462	4,769	2,881
Federal funds purchased and securities sold under agreements to repurchase	5	0	5	0
Long-term debt	1,514	823	2,993	1,134
Other	120	75	240	139
Total interest expense	9,874	6,809	19,497	12,172
Net interest income	46,868	44,482	92,519	85,173
Provision for credit losses	500	1,100	500	2,500
Net interest income after provision for credit losses	46,368	43,382	92,019	82,673
Noninterest income:
Net gain on loan origination and sale activities	65,908	85,630	126,189	146,893
Mortgage servicing income	8,764	12,703	18,003	20,735
Income from WMS Series LLC	406	1,164	591	1,300
Depositor and other retail banking fees	1,811	1,652	3,467	3,247
Insurance agency commissions	501	370	897	764
Gain on sale of investment securities available for sale	551	62	557	97
Other	3,067	895	5,765	1,148
Total noninterest income	81,008	102,476	155,469	174,184
Noninterest expense:
Salaries and related costs	76,390	75,167	147,698	142,451
General and administrative	15,872	16,739	33,000	32,261
Amortization of core deposit intangibles	493	525	1,007	1,057
Legal	150	605	310	1,048
Consulting	771	1,177	1,829	2,849
Federal Deposit Insurance Corporation assessments	697	784	1,521	1,500
Occupancy	8,880	7,513	17,089	14,668
Information services	8,172	8,447	15,820	15,981
Net (benefit) cost from operation and sale of other real estate owned	(181)	74	(156)	569
Total noninterest expense	111,244	111,031	218,118	212,384
Income before income taxes	16,132	34,827	29,370	44,473
Income tax expense	4,923	13,078	9,178	16,317
NET INCOME	$ 11,209	$ 21,749	$ 20,192	$ 28,156
Basic income per share (in dollars per share)	$ 0.42	$ 0.88	$ 0.75	$ 1.16
Diluted income per share (in dollars per share)	$ 0.41	$ 0.87	$ 0.75	$ 1.15
Basic weighted average number of shares outstanding (in shares)	26,866,230	24,708,375	26,843,813	24,192,441
Diluted weighted average number of shares outstanding (in shares)	27,084,608	24,911,919	27,071,028	24,394,648