Commitments - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended
	Apr. 03, 2015	Apr. 04, 2014	Mar. 29, 2013	May 31, 2013
Long-term Purchase Commitment [Line Items]
Future minimum payments on various other purchase commitments under satellite capacity agreements for fiscal year 2016	$ 50,000,000
Future minimum payments on various other purchase commitments under satellite capacity agreements for fiscal year 2017	13,700,000
Future minimum payments on various other purchase commitments under satellite capacity agreements for fiscal year 2018	11,000,000
Future minimum payments on various other purchase commitments under satellite capacity agreements for fiscal year 2019	11,000,000
Future minimum payments on various other purchase commitments under satellite capacity agreements for fiscal year 2020	9,300,000
Future minimum payments on various other purchase commitments under satellite capacity agreements thereafter	3,700,000
Description of operating lease arrangements	The Company leases office and other facilities under non-cancelable operating leases with initial terms ranging from one to fifteen years which expire between fiscal year 2016 and fiscal year 2026 and provide for pre-negotiated fixed rental rates during the terms of the lease. Certain of the Company's facilities leases contain option provisions which allow for extension of the lease terms.
Rent expense	24,500,000	22,300,000	19,900,000
Satellite Performance Incentives Obligation [Member]
Long-term Purchase Commitment [Line Items]
Maximum contractual satellite orbital performance obligation	34,000,000
Period of in-orbit satellite performance incentive payments, including interest	15 years
Satellite performance incentives obligation, total	22,400,000
Satellite performance incentives obligation, short-term portion	2,300,000
Satellite performance incentives obligation, long-term portion	20,121,000	20,567,000
Future minimum payments under satellite performance incentives obligation for fiscal year 2016	2,000,000
Future minimum payments under satellite performance incentives obligation for fiscal year 2017	2,100,000
Future minimum payments under satellite performance incentives obligation for fiscal year 2018	2,300,000
Future minimum payments under satellite performance incentives obligation for fiscal year 2019	2,400,000
Future minimum payments under satellite performance incentives obligation for fiscal year 2020	2,600,000
Future minimum payments under satellite performance incentives obligation due after fifth year	22,600,000
Construction in progress [Member] | Property Plant and Equipment - Satellites [Member]
Long-term Purchase Commitment [Line Items]
Maximum contractual satellite orbital performance obligation				$ 358,000,000