Fair Value Measurements (Book Value and Estimated Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014		Mar. 29, 2014
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Servicing Asset at Fair Value, Amount	$ 395		$ 350
Reported Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Investments, Fair Value Disclosure	22,632	[1]	19,802	[1]
Non-marketable equity investments, Fair Value Disclosure	6,467	[2]	5,652	[2]
Notes Receivable, Fair Value Disclosure	100,393	[3]	98,284	[3]
Interest Rate Lock Commitments Fair Value Disclosure	24	[4]	(14)	[4]
Forward Commitments Fair Value Disclosure	(42)	[4]	24	[4]
Inventory Finance Receivable	20,808	[5]	21,308	[5]
Securitized Financings	67,617	[6]	70,052	[6]
Servicing Asset at Fair Value, Amount	395	[7]	350	[7]
Total of Fair Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Investments, Fair Value Disclosure	22,632	[1]	19,802	[1]
Non-marketable equity investments, Fair Value Disclosure	6,467	[2]	5,652	[2]
Notes Receivable, Fair Value Disclosure	130,953	[3]	131,384	[3]
Interest Rate Lock Commitments Fair Value Disclosure	24	[4]	(14)	[4]
Forward Commitments Fair Value Disclosure	(42)	[4]	24	[4]
Inventory Finance Receivable	20,808	[5]	21,308	[5]
Securitized Financings	72,262	[6]	74,574	[6]
Servicing Asset at Fair Value, Amount	$ 395	[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 investments.

[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 approximates book value based on current market rates and the revolving nature of the instruments.

[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.