Goodwill and Acquisition-Related Intangibles (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jun. 30, 2012	Jul. 02, 2011
Schedule of expected annual amortization expense for acquisition-related intangibles
2013 (remaining nine months)	$ 6,388
2014	7,918
2015	7,289
2016	6,742
2017	4,986
Thereafter	861
Total	34,184
Goodwill and Acquisition-Related Intangibles (Textual) [Abstract]
Amortization of acquisition-related intangibles	$ 2,148	$ 1,623

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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