Fair Value Measurements (Book Value and Estimated Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 28, 2015		Mar. 29, 2014
Summary of the Fair Value and Carrying Value of Financial Instruments
Mortgage servicing rights	$ 475		$ 350
Book Value [Member]
Summary of the Fair Value and Carrying Value of Financial Instruments
Investments	21,283	[1]	19,802	[1]
Non-marketable equity investments, Fair Value Disclosure	10,636	[2]	5,652	[2]
Consumer loans receivable	98,158	[3]	98,284	[3]
Interest rate lock commitment derivatives	19	[4]	(14)	[4]
Forward loan sale commitment derivatives	(54)	[4]	24	[4]
Commercial loans receivable	18,081	[5]	21,308	[5]
Securitized financings	(66,960)	[6]	(70,052)	[6]
Mortgage servicing rights	475	[7]	350	[7]
Estimated Fair Value [Member]
Summary of the Fair Value and Carrying Value of Financial Instruments
Investments	21,283	[1]	19,802	[1]
Non-marketable equity investments, Fair Value Disclosure	10,636	[2]	5,652	[2]
Consumer loans receivable	129,616	[3]	131,384	[3]
Interest rate lock commitment derivatives	19	[4]	(14)	[4]
Forward loan sale commitment derivatives	(54)	[4]	24	[4]
Commercial loans receivable	18,025	[5]	21,308	[5]
Securitized financings	(67,064)	[6]	(74,574)	[6]
Mortgage servicing rights	$ 475	[7]	$ 350	[7]

[1] The fair value is based on quoted market prices.

[2] The fair value approximates book value based on the non-marketable nature of the instruments.

[3] Includes consumer loans receivable held for investment, held for sale and construction advances. The fair value of the loans held for investment is based on the discounted value of the remaining principal and interest cash flows. The fair value of the loans held for sale are estimated based on recent GSE mortgage backed bond prices. The fair value of the construction advances approximates book value and the sales price of these loans is estimated based on construction completed.

[4] The fair values are based on changes in GSE mortgage backed bond prices, and additionally for IRLCs, pull through rates.

[5] The fair value is estimated using market interest rates of comparable loans.

[6] The fair value is estimated using recent public transactions of similar asset-backed securities.

[7] The fair value of the mortgage servicing rights is based on the present value of expected net cash flows related to servicing these loans.