Pension and Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 29, 2019	Sep. 30, 2018
Pension Benefits
COMPONENTS OF NET PERIODIC BENEFIT COST:
Service cost	$ 19	$ 15
Interest cost	15	1,032
Expected return on plan assets		(1,138)
Amortization of unrecognized net loss	4	416
Net periodic benefit cost (credit)	38	325
Postretirement Benefits
COMPONENTS OF NET PERIODIC BENEFIT COST:
Service cost	3	3
Interest cost	6	11
Amortization of prior service cost (credit)	(7)	(110)
Amortization of unrecognized net loss	99	107
Net periodic benefit cost (credit)	$ 101	$ 11