Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Assets and Liabilities Carried at Fair Value on Recurring Basis

The following table presents information on the assets measured and recorded at fair value on a recurring basis as of June 30, 2014:

	Fair Value Measurements as of
	June 30, 2014
Measured on a Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Securities available‑for‑sale:
Government agency and government‑sponsored enterprise
pass through securities	$	584,757	$	—	$	584,757	$	—
Government agency and government‑sponsored enterprise
collateralized mortgage obligations	287,604		—		287,604		—
Covered private label CMOs	36,522		—		—		36,522
Other private label CMOs	14,288		—		14,288		—
Municipal securities	456,566		—		456,566		—
Corporate debt securities	109,391		—		109,391		—
Government‑sponsored enterprise debt securities	36,665		—		36,665		—
Other securities	26,322		516		25,806		—
Total	$	1,552,115	$	516	$	1,515,077	$	36,522

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]

The following table presents information about quantitative inputs and assumptions used to determine the fair values provided by our third party pricing service for our Level 3 covered private label CMOs measured at fair value on a recurring basis as of June 30, 2014:

	Covered Private Label CMOs
Unobservable Inputs:	Range of Inputs	Weighted Average Input
Voluntary annual prepayment speeds	0% - 34.5%	5.6%
Annual default rates	0% - 39.6%	2.8%
Loss severity rates	0% - 64.0%	27.4%
Discount rates	0% - 8.6%	5.2%

Fair Value, Assets Measured on Recurring Basis, Significant Unobservable Inputs (Level 3) Reconciliation [Table Text Block]

The following table summarizes activity for assets measured at fair value on a recurring basis that are categorized as Level 3 for the period indicated:

	Covered Private Label CMOs (Level 3)
	(In thousands)
Balance, December 31, 2013	$	37,904
Total realized in earnings	561
Total unrealized gain in comprehensive income	207
Net settlements	(2,150		)
Balance, June 30, 2014	$	36,522

Assets carried at fair value on a nonrecurring basis

The following tables present assets measured at fair value on a non‑recurring basis as of the date indicated and the gains and (losses) recognized on such assets for the period indicated:

	Fair Value Measurement as of								Gain (Loss)
	June 30, 2014								Three Months Ended			Six Months Ended
	Total		Level 1		Level 2		Level 3		June 30, 2014			June 30, 2014
Measured on a Non‑Recurring Basis:	(In thousands)
Non‑PCI impaired loans	$	29,043	$	—	$	5,398	$	23,645	$	(7,671	)	$	(9,051	)
Other real estate owned	8,059		—		469		7,590		(482		)	(528		)
Total non-recurring	$	37,102	$	—	$	5,867	$	31,235	$	(8,153	)	$	(9,579	)

Fair Value Inputs, Assets, Quantitative Information [Table Text Block]

The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a nonrecurring basis as of June 30, 2014:

Asset	Fair Value (in 000’s)		Valuation Methodology	Unobservable Inputs	Range	Weighted Average
Non-PCI impaired loans	$	22,205	Discounted cash flows	Discount rates	4.06% - 8.66%	6.70%
	$	1,440	Appraisals	No discounts
OREO (one property)	$	7,590	Appraisals	Discount, including 8% for selling costs	8%	8%

Fair Value, by Balance Sheet Grouping [Table Text Block]

The following tables present a summary of the carrying values and estimated fair values of certain financial instruments as of the dates indicated:

	June 30, 2014
	Carrying or Contract		Estimated Fair Value
	Amount		Total		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets:
Cash and due from banks	$	243,583	$	243,583	$	243,583	$	—	$	—
Interest‑earning deposits in financial institutions	119,782		119,782		119,782		—		—
Securities available‑for‑sale	1,552,115		1,552,115		516		1,515,077		36,522
Investment in FHLB stock	49,983		49,983		—		49,983		—
Loans and leases, net	11,107,956		11,232,882		—		5,398		11,227,484
Financial Liabilities:
Deposits:
Demand, money market, interest checking,
and savings deposits	5,738,178		5,738,178		—		5,738,178		—
Time deposits	5,929,619		5,919,083		—		5,919,083		—
Borrowings	4,596		4,606		—		4,606		—
Subordinated debentures	434,878		418,345		—		418,345		—

	December 31, 2013
	Carrying or Contract		Estimated Fair Value
	Amount		Total		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets:
Cash and due from banks	$	96,424	$	96,424	$	96,424	$	—	$	—
Interest‑earning deposits in financial institutions	50,998		50,998		50,998		—		—
Securities available‑for‑sale	1,494,745		1,494,745		507		1,456,334		37,904
Investment in FHLB stock	27,939		27,939		—		27,939		—
Loans and leases, net	4,230,318		4,231,078		—		2,051		4,229,027
SBA loan servicing asset	807		807		—		—		807
Financial Liabilities:
Deposits:
Demand, money market, interest checking,
and savings deposits	4,616,616		4,616,616		—		4,616,616		—
Time deposits	664,371		665,148		—		665,148		—
Borrowings	113,726		113,726		106,600		7,126		—
Subordinated debentures	132,645		132,498		—		132,498		—