Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 266,746	$ 330,651
Accounts receivable and unbilled revenues, net	319,533	266,996
Available-for-sale investment and mortgage-related securities	711,347	678,152
Investment in stock of Federal Home Loan Bank of Seattle	97,764	97,764
Loans receivable held for investment, net	3,580,418	3,489,880
Loans held for sale, at lower of cost or fair value	4,784	7,849
Property, plant and equipment, net of accumulated depreciation of $2,055,204 in 2011 and $2,037,598 in 2010	3,204,996	3,165,918
Regulatory assets	478,766	478,330
Other	494,527	487,614
Goodwill	82,190	82,190
Total assets	9,241,071	9,085,344
Liabilities
Accounts payable	168,187	202,446
Interest and dividends payable	29,593	27,814
Deposit liabilities	4,054,949	3,975,372
Short-term borrowings-other than bank		24,923
Other bank borrowings	239,122	237,319
Long-term debt, net-other than bank	1,440,006	1,364,942
Deferred income taxes	316,843	278,958
Regulatory liabilities	309,809	296,797
Contributions in aid of construction	339,489	335,364
Other	796,573	823,479
Total liabilities	7,694,571	7,567,414
Preferred stock of subsidiaries - not subject to mandatory redemption	34,293	34,293
Shareholders' equity
Preferred stock, no par value, authorized 10,000,000 shares; issued: none
Common stock, no par value, authorized 200,000,000 shares; issued and outstanding: 95,853,329 shares in 2011 and 94,690,932 shares in 2010	1,343,537	1,314,199
Retained earnings	178,513	181,910
Accumulated other comprehensive loss, net of tax benefits	(9,843)	(12,472)
Total shareholders' equity	1,512,207	1,483,637
Total liabilities and shareholders' equity	$ 9,241,071	$ 9,085,344