Pension and Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 01, 2018	Apr. 02, 2017	Apr. 01, 2018	Apr. 02, 2017
Pension Benefits
COMPONENTS OF NET PERIODIC BENEFIT COST:
Service cost	$ 17	$ 13	$ 50	$ 40
Interest cost	965	981	2,893	2,943
Expected return on plan assets	(1,528)	(1,463)	(4,583)	(4,390)
Amortization of prior service cost (credit)	3	3	9	9
Amortization of unrecognized net loss	509	807	1,526	2,421
Net periodic benefit (credit) cost	(34)	341	(105)	1,023
Postretirement Benefits
COMPONENTS OF NET PERIODIC BENEFIT COST:
Service cost	3	4	10	11
Interest cost	11	13	33	40
Amortization of prior service cost (credit)	(191)	(191)	(573)	(573)
Amortization of unrecognized net loss	119	134	359	403
Net periodic benefit (credit) cost	$ (58)	$ (40)	$ (171)	$ (119)