Certain Relationships and Related-Party Transactions - Schedule of Related Party Balance Sheet, Revenue and Expenses, and Cash Paid and Received (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Apr. 01, 2011
Satellite construction contract [Member]
Related Party Transaction [Line Items]
Payables, current	$ 1,725	$ 1,599
Payables, long-term	21,009	20,910
Loral - beam sharing agreement [Member]
Cash received and cash paid
Cash received		4,298	8,230
Telesat Canada - beam sharing agreement [Member]
Cash received and cash paid
Cash received		9,159
Loral - ordinary course of business [Member]
Revenue and expense
Revenue		3,983	3,282
Cash received and cash paid
Cash received		1,194	3,876
Telesat Canada - ordinary course of business [Member]
Revenue and expense
Expense	7,685	3,380	2,153
Cash received and cash paid
Cash received	1,023	2,930	1,239
Cash paid	7,358	7,606	7,178
Loral - satellite construction contract [Member]
Cash received and cash paid
Cash paid	$ 1,609	$ 4,174	$ 25,020