Goodwill and Acquired Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jun. 29, 2012	Jul. 01, 2011
Expected amortization expense for acquired intangible assets
For the three months ended June 29, 2012	$ 4,064	$ 4,772
Expected for the remainder of fiscal year 2013	11,497
Expected for fiscal year 2014	13,801
Expected for fiscal year 2015	13,725
Expected for fiscal year 2016	10,178
Expected for fiscal year 2017	4,621
Thereafter	4,993
Total future amortization expense	$ 58,815

Aggregate amount of intangible asset amortization recognized as expense during the period.

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The aggregate estimated amortization expense for succeeding fiscal years for intangible assets subject to amortization.

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The amount of amortization expense expected to be recognized for the remainder of the finite-lived intangible asset useful life after the fifth succeeding fiscal year.

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The amount of amortization expense expected to be recognized during year two of the five succeeding fiscal years.

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