Segment Reporting (Geographic Region) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011	Mar. 31, 2012
Segment Reporting Information [Line Items]
Revenues	$ 260,161	$ 287,171	$ 507,998	$ 555,597
Operating income	13,984	22,434	25,844	39,312
Intangibles amortization	3,474	3,176	6,938	6,235
Assets	892,981	1,208,114	892,981	1,208,114	888,023
Operating segments [Member]
Segment Reporting Information [Line Items]
Assets	949,893	1,268,541	949,893	1,268,541
North America [Member]
Segment Reporting Information [Line Items]
Revenues	227,534	251,457	442,802	484,794
Operating income	11,810	18,316	21,371	32,302
Depreciation	1,188	1,253	2,403	2,541
Intangibles amortization	3,468	3,163	6,926	6,212
Assets	841,214	1,118,907	841,214	1,118,907
Europe [Member]
Segment Reporting Information [Line Items]
Revenues	22,365	26,483	46,007	52,837
Operating income	900	2,839	2,161	5,117
Depreciation	112	89	212	189
Intangibles amortization	6	11	12	20
Assets	79,265	122,723	79,265	122,723
All Other [Member]
Segment Reporting Information [Line Items]
Revenues	10,262	9,231	19,189	17,966
Operating income	1,274	1,279	2,312	1,893
Depreciation	47	37	97	69
Intangibles amortization	0	2	0	3
Assets	$ 29,414	$ 26,911	$ 29,414	$ 26,911