Business Combinations (Details) - USD ($) $ in Thousands		6 Months Ended
	Dec. 23, 2015	Oct. 02, 2016	Sep. 27, 2015	Apr. 03, 2016	Sep. 18, 2015
Business Acquisition [Line Items]
Goodwill		$ 97,724		$ 97,724
Preliminary purchase price, net of cash acquired		$ 2,199	$ 4,450
Restricted Cash and Cash Equivalents	$ 7,300
Stauber Performance Ingredients [Member]
Business Acquisition [Line Items]
Cash and cash equivalents (a)	1,502
Trade receivables	15,737
Inventories	10,207
Other assets	900
Property, plant, and equipment	10,989
Intangible assets	71,459
Accounts payable	5,398
Accrued expenses and other current liabilities (a)	(2,925)
Deferred income taxes	28,445
Other non-current liabilities	79
Net assets acquired	73,947
Goodwill	84,229
Total preliminary purchase price	158,176
Less acquired cash	(1,502)
Preliminary purchase price, net of cash acquired	$ 156,700
Davis Supply Inc. [Member]
Business Acquisition [Line Items]
Inventories					$ 145
Property, plant, and equipment					78
Intangible assets					2,532
Net assets acquired					2,755
Goodwill					1,745
Total preliminary purchase price					$ 4,500