Qualified Affordable Housing Project Investments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) project	Dec. 31, 2015 USD ($)
Schedule of Equity Method Investments [Line Items]
Original Investment Value	$ 10,000	$ 10,000
Current Recorded Investment	7,000	8,324
Unfunded Liability Obligation	749	2,427
Tax Credits and Benefits	961	1,736
Amortization of Investments	1,324	1,000
Net Income Tax Benefit	$ (1,233)	(1,174)
Number of projects | project	2
WNC Institutional Tax Credit Fund X, CA Series 11 L.P.
Schedule of Equity Method Investments [Line Items]
Original Investment Value	$ 5,000	5,000
Current Recorded Investment	3,250	3,791
Unfunded Liability Obligation	223	316
Tax Credits and Benefits	488	917
Amortization of Investments	542	500
Net Income Tax Benefit	(596)	(643)
WNC Institutional Tax Credit Fund X, CA Series 12, L.P.
Schedule of Equity Method Investments [Line Items]
Original Investment Value	5,000	5,000
Current Recorded Investment	3,750	4,533
Unfunded Liability Obligation	526	2,111
Tax Credits and Benefits	473	819
Amortization of Investments	782	500
Net Income Tax Benefit	$ (637)	$ (531)