Debt Obligations (Summarizes Securitized Financings) (Details) - USD ($) $ in Thousands		3 Months Ended
		Jul. 01, 2017	Apr. 01, 2017	Jul. 02, 2016	Apr. 02, 2016
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 15,000
Maximum Advance under Secured Credit Facility		80.00%
Line of Credit Facility, Interest Rate Description		0.0475
Line of Credit Facility, Frequency of Payment and Payment Terms		20 year amortization schedule
Acquired Securitized Financings
Securitized financings - contractual amount		$ 54,415	$ 57,120
Purchase Discount
Accretable yield		(6,666)	(7,636)	$ (11,459)	$ (12,333)
Non-accretable difference	[1]	0	0
Total securitized financings, net		$ 47,749	$ 49,484
Secured Debt [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description		10 year US Treasury bonds plus 2.75%

[1] There is no non-accretable difference, as the contractual payments on acquired securitized financing are determined by the cash collections from the underlying loans.