Fair Value Accounting and Measurement: Schedule of Assets and Liabilities Reconciliation at Fair Value Using Level 3 (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Level 3 -- TPS and TRUP CDOs
Fair Value Assets and Liabilities Beginning Balance	$ 31,056	$ 29,670	$ 30,455	$ 29,661
Fair Value Assets Gains, Including OTTI	1,437	1,058	2,038	1,109
Fair Value Assets and Liabilities Ending Balance	32,493	30,728	32,493	30,728
Fair Value Assets and Liabilities Paydowns and Maturities				(42)
Level 3 -- Borrowings-Junior Subordinated Debentures
Fair Value Assets and Liabilities Beginning Balance	49,368	48,395	49,988	48,425
Fair Value Liabilities (Gains)	21,185	(409)	20,565	(439)
Fair Value Assets and Liabilities Ending Balance	$ 70,553	$ 47,986	$ 70,553	$ 47,986