Inventories Schedule of Inventory (Details) (USD $) In Thousands, unless otherwise specified	Jun. 27, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Merchandise for Resale	$ 161,595	$ 152,194
Raw materials	21,694	20,609
Contracts and other work in process	196,456	205,220
Finished Goods (including certain general stock materials)	10,811	12,472
Inventory, Net	$ 390,556	$ 390,495

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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Carrying amount as of the balance sheet date of merchandise inventory purchased by a retailer, wholesaler or distributor and held for future sale.

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