Commercial Loans - Summary of Activity in Allowance for Commercial Loan Losses (Details) - Commercial Loans - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	$ 7,662	$ 8,028	$ 7,456	$ 7,373
Charge-offs, net	0	0	0	0
Provision for loan losses	(261)	289	(55)	944
Balance at End of Period	$ 7,401	$ 8,317	$ 7,401	$ 8,317