Loans Receivable and Allowance For Credit Losses - Discount on Acquired Loans (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Unpaid principal balance	$ 28,000,000
Carrying amount	16,700,000	11,200,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Unamortized loan discounts	28,400,000	21,300,000
Projected Loan Discount Accretion [Abstract]
2014	5,707,000
2015	3,536,000
2016	2,201,000
2017	1,502,000
2018	1,052,000
Evidence of Credit Deterioration [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning balance	1,332,000	0
Additions	1,774,000	1,923,000
Accretion to interest income	1,739,000	756,000
Reclassifications from non-accretable	1,622,000	165,000
Ending balance	$ 2,989,000	$ 1,332,000