Fair Value Measurements - Assets And Liabilities Measured At Fair Value (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Dec. 24, 2021	Mar. 26, 2021
Assets:
Total assets	$ 37,238	$ 22,988
Liabilities:
Contingent consideration	2,700	4,800
Total liabilities	2,700	4,800
Level 1
Assets:
Total assets	37,238	22,988
Liabilities:
Contingent consideration	0	0
Total liabilities	0	0
Level 2
Assets:
Total assets	0	0
Liabilities:
Contingent consideration	0	0
Total liabilities	0	0
Level 3
Assets:
Total assets	0	0
Liabilities:
Contingent consideration	2,700	4,800
Total liabilities	2,700	4,800
Money market fund deposits
Assets:
Cash and cash equivalents	16,348	16,327
Restricted cash	7,497	6,661
Investments in marketable securities	13,393
Money market fund deposits | Level 1
Assets:
Cash and cash equivalents	16,348	16,327
Restricted cash	7,497	6,661
Investments in marketable securities	13,393
Money market fund deposits | Level 2
Assets:
Cash and cash equivalents	0	0
Restricted cash	0	0
Investments in marketable securities	0
Money market fund deposits | Level 3
Assets:
Cash and cash equivalents	0	0
Restricted cash	0	$ 0
Investments in marketable securities	$ 0