Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 28, 2012	Sep. 30, 2011
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income	$ 25,930	$ 34,270
Adjustments to reconcile net income to net cash provided by operating activities:
Total income from discontinued operations	(4,291)	(7,767)
Depreciation	11,140	10,443
Provision for deferred income taxes	(4,134)	(2,402)
Amortization of debt discount and issuance costs	5,759	4,993
Amortization of intangible assets	4,628	3,234
Noncash compensation expense	2,071	3,714
Provision for doubtful accounts	942	758
Provision for deferred compensation	559	523
Loss on sales of property and equipment	(8)	(3)
Changes in operating assets and liabilities, net of effects from business combinations and discontinued operations [Abstract]
Accounts receivable, net	5,031	(2,494)
Inventories	(10,189)	(9,495)
Prepaid expenses and other current assets	(8,699)	(7,586)
Other assets	(3,844)	12,110
Accounts payable	9,826	16,654
Accrued expenses and other liabilities	1,688	(1,021)
Net cash (used in) provided by operating activities, discontinued operations	12,053	1,552
Net cash provided by operating activities	48,462	57,483
Net Cash Provided by (Used in) Investing Activities [Abstract]
Payments for business acquisitions, net of cash acquired	(68,738)	(10,036)
Capital expenditures	(11,034)	(9,688)
Other	(170)	(48)
Net cash used in investing activities, discontinued operations	(1,230)	(1,530)
Net cash used in investing activities	(81,172)	(21,302)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Purchase and retirement of common stock	(7,740)	(80,905)
Excess tax benefits from stock-based compensation arrangements	315	1,269
Payment for debt issuance costs	(676)	0
Proceeds from exercise of stock options	10	337
Proceeds from borrowings on the revolving line of credit	0	131,583
Repayments on the revolving line of credit	0	(81,583)
Payment of contingent consideration on business acquisitions	0	(1,000)
Payments under capital lease obligations	0	(360)
Net cash used in financing activities, discontinued operations	0	(22)
Net cash used in financing activities	(8,091)	(30,681)
Net decrease in cash and cash equivalents	(40,801)	5,500
Cash and cash equivalents, beginning of period	163,152	29,348
Cash and cash equivalents, end of period	$ 122,351	$ 34,848