Fair Value Measurements (Book Value and Estimated Fair Value) (Details) - USD ($) $ in Thousands		Dec. 26, 2020	Mar. 28, 2020
Non Recurring
Financial Instruments
Commercial loans receivable		$ 38,300	$ 46,819
Securitized financings and other		12,493	15,592
Level 1 | Non Recurring
Financial Instruments
Commercial loans receivable		0	0
Securitized financings and other		0	0
Level 2 | Non Recurring
Financial Instruments
Commercial loans receivable		0	0
Securitized financings and other		12,493	15,592
Level 3 | Non Recurring
Financial Instruments
Commercial loans receivable		38,300	46,819
Securitized financings and other		0	0
Book Value
Financial Instruments
Non-marketable equity investments	[1]	21,791	21,536
Consumer loans receivable	[2]	81,592	82,304
Interest rate lock commitment derivatives	[3]	77	164
Forward loan sale commitment derivatives	[3]	(195)	(1,011)
Commercial loans receivable		39,746	46,565
Securitized financings and other		12,987	14,953
Book Value | Available-for-sale debt securities
Financial Instruments
Investments	[4]	16,673	14,774
Book Value | Marketable equity securities
Financial Instruments
Investments	[4]	13,987	9,829
Estimated Fair Value
Financial Instruments
Non-marketable equity investments	[1]	21,791	21,536
Consumer loans receivable	[2]	96,313	97,395
Interest rate lock commitment derivatives	[3]	77	164
Forward loan sale commitment derivatives	[3]	(195)	(1,011)
Commercial loans receivable		38,300	46,819
Securitized financings and other		12,493	15,592
Estimated Fair Value | Available-for-sale debt securities
Financial Instruments
Investments	[4]	16,673	14,774
Estimated Fair Value | Marketable equity securities
Financial Instruments
Investments	[4]	$ 13,987	$ 9,829

[1] Unrealized gains or losses on investments are recorded in earnings at each measurement date.

[2] Gains or losses on derivatives are recorded in earnings through Cost of sales.

[3] Changes in the fair value of mortgage servicing rights are recorded in earnings through Net revenue.

[4] Unrealized gains or losses on investments are recorded in Accumulated other comprehensive income at each measurement date.