Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 26, 2015		Mar. 31, 2015
Intangible Assets (Excluding Goodwill) [Line Items]
Definite-lived intangible assets, gross carrying amount	$ 127,158	[1]	$ 170,006
Definite-lived intangible assets, accumulated amortization	74,617	[1]	109,647
Definite-llved intangible assets, net carrying amount	52,541		60,359
Total intangible assets, gross carrying amount	163,150		205,998
Total intangible assets, accumulated amortization	82,870		117,900
Total intangible assets, net carrying amount	80,280		88,098
Non-compete agreements [Member]
Intangible Assets (Excluding Goodwill) [Line Items]
Definite-lived intangible assets, gross carrying amount	2,263	[1]	11,901
Definite-lived intangible assets, accumulated amortization	2,115	[1]	11,548
Definite-llved intangible assets, net carrying amount	148		353
Customer relationships [Member]
Intangible Assets (Excluding Goodwill) [Line Items]
Definite-lived intangible assets, gross carrying amount	121,406	[1]	137,267
Definite-lived intangible assets, accumulated amortization	69,086	[1]	77,988
Definite-llved intangible assets, net carrying amount	52,320		59,279
Total intangible assets, net carrying amount	52,320		59,279
Acquired backlog [Member]
Intangible Assets (Excluding Goodwill) [Line Items]
Definite-lived intangible assets, gross carrying amount	3,489	[1]	20,838
Definite-lived intangible assets, accumulated amortization	3,416	[1]	20,111
Definite-llved intangible assets, net carrying amount	73		727
Trademarks [Member]
Intangible Assets (Excluding Goodwill) [Line Items]
Indefinite-lived intangible assets, gross carrying amount	35,992		35,992
Indefinite-lived intangible assets, accumulated amortization	8,253		8,253
Indefinite-lived intangible assets, net carrying amount	27,739		27,739
Total intangible assets, net carrying amount	$ 27,739		$ 27,739

[1] Reflects the write-off of fully amortized non-compete agreements, customer relationships and backlog during the three-month period ending December 26, 2015.