Fair Value Measurements (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 30, 2012	Mar. 30, 2012 Level 1 [Member] Fair Value, Measurements, Recurring [Member] 2016 Notes [Member]	Apr. 01, 2011 Level 1 [Member] Fair Value, Measurements, Recurring [Member] 2016 Notes [Member]	Mar. 30, 2012 Level 2 [Member] Fair Value, Measurements, Recurring [Member] 2020 Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of outstanding long-term debt related to the Senior Notes		$ 298.4	$ 293.6	$ 280.2
Fair Value Measurements (Textual) [Abstract]
Interest on satellite in orbital performance obligation	7.00%
Period of in orbit performance incentive payments including interest	15 years