Reinsurance and Insurance Loss Reserves - Schedule of Reinsurance Effect on Premiums Written and Earned (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 27, 2026	Jun. 28, 2025
Written
Direct premiums	$ 10,862	$ 12,151
Assumed premiums—nonaffiliated	11,867	11,482
Ceded premiums—nonaffiliated	(6,905)	(7,710)
Net premiums written	15,824	15,923
Earned
Direct premiums	10,956	11,532
Assumed premiums—nonaffiliated	10,861	10,870
Ceded premiums—nonaffiliated	(6,905)	(7,710)
Net premiums earned	$ 14,912	$ 14,692