Operating Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 27, 2014 Item	Sep. 28, 2013
Net revenue:
Total net revenue	$ 433.6	$ 429.0
Operating income (loss):
Total operating income	39.5	35.4
Unallocated amounts:
Restructuring and related charges	(2.9)	0.8
Interest and other income (expense), net	0.5	(0.6)
Interest expense	(8.3)	(5.2)
(Loss) income before taxes	(3.6)	0.8
Number of reporting units	2
Corporate
Operating income (loss):
Total operating income	(22.4)	(23.5)
Segment Reconciling Items
Unallocated amounts:
Stock-based compensation	(15.7)	(15.7)
Acquisition-related charges and amortization of intangibles	(15.1)	(14.1)
Gain (loss) on disposal of long-lived assets	0	(0.3)
Restructuring and related charges	(2.9)	0.8
Other charges related to non-recurring activities	(1.6)	(0.5)
Interest and other income (expense), net	0.5	(0.6)
Interest expense	(8.3)	(5.2)
Network Enablement
Net revenue:
Net Revenue	132.8	145.1
Operating income (loss):
Total operating income	20.1	22.5
Service Enablement
Net revenue:
Net Revenue	48.2	26.8
Operating income (loss):
Total operating income	0.8	(9.9)
Communications and Commercial Optical Products
Net revenue:
Net Revenue	209.3	204.6
Operating income (loss):
Total operating income	25.1	27.2
Optical Security and Performance Products
Net revenue:
Net Revenue	43.3	52.5
Operating income (loss):
Total operating income	$ 15.9	$ 19.1