Acquisitions and Dispositions (Details) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 18, 2015	Jun. 01, 2015	Mar. 30, 2015	Feb. 28, 2014	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014	Mar. 31, 2015	Dec. 27, 2014	Dec. 29, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds from sale of property							$ 5,518	$ 4,874
Pre-tax gain on sale of property					$ 15,376	$ 0	$ 15,376	$ 1,417
DWV Ontario Manufacturing Assets [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Lease-back term							22 months
Total sales price of property		$ 20,200
Cash proceeds from sale of property		5,000
Deferred revenue - current					5,000		$ 5,000
Deferred revenue - noncurrent					$ 10,200		10,200
Pre-tax gain on sale of property		$ 15,400
Amount of pre diluted share after tax (in dollars per share)		$ 0.17
Carrying value of disposal assets		$ 2,300
Disposal group - goodwill		$ 2,400
KME Yorkshire Limited [Member]
Business Acquisition [Line Items]
Cost of acquisition				$ 30,100
Pro forma net sales											$ 196,100
Fair value of assets acquired				20,700
Fair value of assets acquired - property, plant and equipment				2,100
Fair value of assets acquired - inventories				17,600
Fair value of assets acquired - other current assets				1,000
Fair value of liabilities assumed				15,600
Fair value of liabilities assumed - accounts payable and accrued expenses				15,200
Fair value of liabilities assumed - other current liabilities				400
Remaining purchase price allocated to tax-deductible goodwill				8,100
Remaining purchase price allocated to other intangible assets				$ 16,900
Severance costs related to reorganization							$ 3,400
Turbotec Products, Inc. [Member]
Business Acquisition [Line Items]
Cost of acquisition			$ 14,200
Pro forma net sales									$ 21,800
Fair value of assets acquired			14,400
Fair value of assets acquired - property, plant and equipment			9,100
Fair value of assets acquired - inventories			3,200
Fair value of assets acquired - accounts receivable			1,900
Fair value of assets acquired - other current assets			100
Fair value of assets acquired - other assets			100
Fair value of liabilities assumed			2,000
Fair value of liabilities assumed - accounts payable			1,600
Fair value of liabilities assumed - accrued expenses			400
Remaining purchase price allocated nontax-deductible goodwill			900
Remaining purchase price allocated to other intangible assets			$ 900
Sherwood Valve Products, LLC [Member]
Business Acquisition [Line Items]
Cost of acquisition	$ 21,800
Pro forma net sales										$ 49,100
Fair value of assets acquired	28,700
Fair value of assets acquired - property, plant and equipment	7,500
Fair value of assets acquired - inventories	14,800
Fair value of assets acquired - accounts receivable	6,200
Fair value of assets acquired - other current assets	200
Fair value of liabilities assumed	6,900
Fair value of liabilities assumed - accounts payable	6,500
Fair value of liabilities assumed - accrued expenses	300
Fair value of liabilities assumed - other current liabilities	$ 100