Fair value measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of estimated fair values of certain of the Company's financial instruments

The estimated fair values of certain of the Company’s and the Utilities' financial instruments were as follows:

			Estimated fair value
(in thousands)	Carrying or notional amount		Quoted prices in active markets for identical assets (Level 1)		Significant other Observable inputs (Level 2)		Significant Unobservable inputs (Level 3)		Total
December 31, 2013
Financial assets
Money market funds	$	10	$	—	$	10	$	—	$	10
Available-for-sale investment and mortgage-related securities	529,007		—		529,007		—		529,007
Investment in stock of Federal Home Loan Bank of Seattle	92,546		—		92,546		—		92,546
Loans receivable, net	4,115,415		—		—		4,211,290		4,211,290
Derivative assets	46,356		98		531		—		629
Financial liabilities
Deposit liabilities	4,372,477		—		4,374,377		—		4,374,377
Short-term borrowings—other than bank	105,482		—		105,482		—		105,482
Other bank borrowings	244,514		—		256,029		—		256,029
Long-term debt, net—other than bank	1,492,945		—		1,508,425		—		1,508,425
The Utilities' long-term debt, net (included in amount above)	1,217,945		—		1,228,966		—		1,228,966
Derivative liabilities	4,732		—		26		—		26
December 31, 2012
Financial assets
Money market funds	$	10	$	—	$	10	$	—	$	10
Available-for-sale investment and mortgage-related securities	671,358		—		671,358		—		671,358
Investment in stock of Federal Home Loan Bank of Seattle	96,022		—		96,022		—		96,022
Loans receivable, net	3,763,238		—		—		3,957,752		3,957,752
Financial liabilities
Deposit liabilities	4,229,916		—		4,235,527		—		4,235,527
Short-term borrowings—other than bank	83,693		—		83,693		—		83,693
Other bank borrowings	195,926		—		212,163		—		212,163
Long-term debt, net—other than bank	1,422,872		—		1,481,004		—		1,481,004
The Utilities' long-term debt, net (included in amount above)	1,147,872		—		1,181,631		—		1,181,631

Schedule of assets and liabilities measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis were as follows:

	December 31, 2013						December 31, 2012
	Fair value measurements using						Fair value measurements using
(in thousands)	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Money market funds (“other” segment)	$	—	$	10	$	—	$	—	$	10	$	—
Available-for-sale securities (bank segment)
Mortgage-related securities-FNMA, FHLMC and GNMA	$	—	$	369,444	$	—	$	—	$	417,383	$	—
Federal agency obligations	—		80,973		—		—		171,491		—
Municipal bonds	—		78,590		—		—		82,484		—
	$	—	$	529,007	$	—	$	—	$	671,358	$	—
Derivative assets 1
Interest rate lock commitments	$	—	$	488	$	—	$	—	$	—	$	—
Forward commitments	98		43		—		—		—		—
	$	98	$	531	$	—	$	—	$	—	$	—
Derivative liabilities 1
Interest rate lock commitments	$	—	$	24	$	—	$	—	$	—	$	—
Forward commitments	—		2		—		—		—		—
	$	—	$	26	$	—	$	—	$	—	$	—

Schedule of assets measured at fair value on a nonrecurring basis

Assets measured at fair value on a nonrecurring basis were as follows:

			Fair value measurements using
(in millions)	Balance		Level 1		Level 2		Level 3
Loans
December 31, 2013	$	4	$	—	$	—	$	4
December 31, 2012	21		—		—		21
Real estate acquired in settlement of loans
December 31, 2013	—		—		—		—
December 31, 2012	3		—		—		3

Schedule of significant unobservable inputs used in the fair value measurement

For loans and real estate acquired in settlement of loans classified as Level 3 as of December 31, 2013, the significant unobservable inputs used in the fair value measurement were as follows:

	Fair value at				Significant unobservable  input value 1
($ in thousands)	December 31, 2013		Valuation technique	Significant unobservable input	Range	Weighted Average
Residential loans	$	2,361	Fair value of property or collateral	Appraised value less 7% selling cost	44-96%	87%
Home equity lines of credit	170		Fair value of property or collateral	Appraised value less 7% selling cost	45-50%	50%
Commercial loans	217		Fair value of property or collateral	Fair value of business assets		19%
Commercial loans	1,668		Discounted cash flow	Present value of expected future cash flows		58%
				Discount rate		4.5%
Total loans	$	4,416

Schedule of assets held in various trusts are measured at fair value on a recurring basis

Assets held in various trusts for the retirement benefit plans are measured at fair value on a recurring basis and were as follows:

	Pension benefits									Other benefits
				Fair value measurements using									Fair value measurements using
(in millions)	December 31			Level 1		Level 2		Level 3		December 31			Level 1		Level 2		Level 3
2013
Equity securities	$	672		$	672	$	—	$	—	$	102		$	102	$	—	$	—
Equity index funds	127			127		—		—		19			19		—		—
Fixed income securities	350			122		228		—		46			40		6		—
Pooled and mutual funds and other	84			—		83		1		13			—		13		—
Total	$	1,233		$	921	$	311	$	1	$	180		$	161	$	19	$	—
Receivables and payables, net	(46		)							(1		)
Fair value of plan assets	$	1,187								$	179
2012
Equity securities	$	513		$	513	$	—	$	—	$	83		$	83	$	—	$	—
Equity index funds	95			95		—		—		15			15		—		—
Fixed income securities	338			125		213		—		47			41		6		—
Pooled and mutual funds and other	78			1		76		1		13			—		13		—
Total	1,024			$	734	$	289	$	1	158			$	139	$	19	$	—
Receivables and payables, net	(53		)							(1		)
Fair value of plan assets	$	971								$	157

Schedule of changes in Level 3 assets

For 2013 and 2012, the changes in Level 3 assets were as follows:

	2013					2012
(in thousands)	Pension benefits			Other benefits		Pension benefits			Other benefits
Balance, January 1	$	581		$	18	$	217		$	7
Realized and unrealized losses	(1		)	—		(24		)	(1		)
Purchases and settlements, net	—			—		388			12
Balance, December 31	$	580		$	18	$	581		$	18