Acquisitions (Purchase Price Allocations) (Details) (USD $)	12 Months Ended
Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Purchase price of acquisitions allocation
Plus: gain on bargain purchase	$ 386,000	$ 217,000	$ 0
Goodwill	349,088,000us-gaap_Goodwill	270,039,000us-gaap_Goodwill	249,803,000us-gaap_Goodwill
Fiscal 2015 Acquisitions [Member]
Purchase price of acquisitions allocation
Inventories	5,648,000
Other current assets	567,000
Property, plant and equipment	31,271,000
Intangible assets	9,216,000
Deferred income tax assets	15,354,000
Other non-current assets	128,000
Total assets acquired	62,184,000
Warranty reserves	925,000
Other current liabilities	2,837,000
Long-term capital leases and financing obligations	47,803,000
Other long-term liabilities	1,639,000
Total liabilities assumed	53,204,000
Total net identifiable assets acquired	8,980,000
Total consideration transferred	87,910,000
Plus: gain on bargain purchase	386,000
Less: total net identifiable assets acquired	8,980,000
Goodwill	79,316,000
Fiscal 2014 Acquisitions [Member]
Purchase price of acquisitions allocation
Inventories		1,513,000
Other current assets		120,000
Property, plant and equipment		9,786,000
Intangible assets		2,069,000
Deferred income tax assets		748,000
Other non-current assets		94,000
Total assets acquired		14,330,000
Warranty reserves		176,000
Other current liabilities		801,000
Long-term capital leases and financing obligations		2,958,000
Other long-term liabilities		369,000
Total liabilities assumed		4,304,000
Total net identifiable assets acquired		10,026,000
Total consideration transferred		27,482,000
Plus: gain on bargain purchase		217,000
Less: total net identifiable assets acquired		10,026,000
Goodwill		$ 17,673,000

Amount of other long term liabilities assumed at the acquisition date.

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Amount of warranty reserves assumed at the acquisition date.

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Total cash payments made to acquire business adjusted for purchase accounting.

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In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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Amount of assets acquired at the acquisition date.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of deferred tax asset attributable to deductible temporary differences and carryforwards that are expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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