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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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LOANS & ALLOWANCE FOR LOAN LOSS - LOAN PORTFOLIO COMPOSITION (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 4,372,753		$ 3,592,880
Allowance for loan losses	(23,187)	(20,495)	(18,373)	(15,200)	(14,546)	(14,182)
Unaccreted discounts and loan fees	(45,905)		(41,666)
Net Loans	4,303,661		3,532,841
Single family warehouse loans	97,245		92,920
Single family, Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,527,281		1,918,626
Allowance for loan losses	(11,792)	(9,807)	(7,959)	(6,064)	(5,418)	(4,812)
Unaccreted discounts and loan fees	10,881		7,138
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	4,267		12,690
Allowance for loan losses	(97)	(113)	(134)	(138)	(152)	(183)
Unaccreted discounts and loan fees	(4)		(11)
Warehouse and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	387,451		370,717
Allowance for loan losses	(1,585)	(1,216)	(1,259)	(1,016)	(890)	(1,250)
Unaccreted discounts and loan fees	(1,879)		(2,055)
Commercial & Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	139,533		152,619
Allowance for loan losses	(3,153)	(2,882)	(3,048)	(2,003)	(1,489)	(1,623)
Unaccreted discounts and loan fees	(530)		(706)
Multi-family real estate secured
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,168,999		978,511
Allowance for loan losses	(4,234)	(4,022)	(3,785)	(2,869)	(3,867)	(3,186)
Unaccreted discounts and loan fees	3,219		2,336
Commercial Real Estate Secured
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,550		24,061
Allowance for loan losses	(985)	(965)	(1,035)	(1,648)	(995)	(1,378)
Unaccreted discounts and loan fees	(34)		(37)
Auto and RV secured
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	13,516		14,740
Allowance for loan losses	(1,053)	(1,160)	(812)	(1,206)	(1,295)	(1,536)
Unaccreted discounts and loan fees	176		215
Factoring
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	112,545		118,945
Allowance for loan losses	(270)	(311)	(279)	(240)	(195)	(201)
Unaccreted discounts and loan fees	(57,734)		(48,546)
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	611		1,971
Allowance for loan losses	(18)	(19)	(62)	(16)	(245)	(13)
Unaccreted discounts and loan fees	$ 0		$ 0