Subsequent Events Rehabilitation Exit Transaction (Details) - Subsequent Event [Member]	Feb. 12, 2018 USD ($)
One Time Interest Payment on Surplus Notes	$ 13,501,000
Deferred Payment Obligation [Member]
One Dollar Outstanding	1.00
Cash Payment Amount	0.40
Payment Amount in New Secured Notes	0.41
Payment Amount in Existing Surplus Notes	0.125
Discount Amount	0.065
Ambac [Member] | Deferred Payment Obligation [Member]
One Dollar Outstanding	1.00
Payment Amount in New Secured Notes	0.91
Discount Amount	0.09
Ambac [Member]
One Time Interest Payment on Surplus Notes	$ 2,618,000