Pension and Other Postretirement Benefits (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Mar. 31, 2013	Apr. 01, 2012
Components of Net Periodic Benefit Cost:
Loss on settlement of pension obligation	$ 2,144		$ 2,144
Pension Benefits
Components of Net Periodic Benefit Cost:
Service cost	41	37	145	112
Interest cost	1,110	1,196	3,356	3,588
Expected return on plan assets	(1,530)	(1,603)	(4,594)	(4,808)
Loss on settlement of pension obligation	2,144		2,144
Amortization of prior service cost	3	3	9	9
Amortization of unrecognized net loss	1,111	604	3,373	1,811
Net periodic benefit cost	2,879	237	4,433	712
Postretirement Benefits
Components of Net Periodic Benefit Cost:
Service cost	4	3	11	8
Interest cost	45	56	136	170
Expected return on plan assets
Loss on settlement of pension obligation
Amortization of prior service cost	(191)	(191)	(573)	(573)
Amortization of unrecognized net loss	225	168	674	505
Net periodic benefit cost	$ 83	$ 36	$ 248	$ 110