BASIS OF PRESENTATION (Policies)	6 Months Ended
BASIS OF PRESENTATION (Policies)	Jun. 27, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting	The accompanying unaudited interim consolidated condensed financial statements (the "Financial Statements") include our accounts and those of our wholly-owned and majority-owned subsidiaries and partnerships, and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Accordingly, the Financial Statements do not include all of the information and footnotes normally included in the annual consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States. All intercompany transactions and balances have been eliminated. In our opinion, the Financial Statements contain all material adjustments necessary to present fairly our consolidated financial position, results of operations and cash flows for the interim periods presented. All such adjustments are of a normal recurring nature. These Financial Statements should be read in conjunction with the annual consolidated financial statements, and footnotes thereto, included in our Annual Report to Shareholders on Form 10-K for the fiscal year ended December 27, 2014. Seasonality has a significant impact on our working capital from March to August which historically results in negative or modest cash flows from operations in our first and second quarters. Conversely, we experience a substantial decrease in working capital from September to February which typically results in significant cash flow from operations in our third and fourth quarters. For comparative purposes, we have included the June 28, 2014 balances in the accompanying unaudited consolidated condensed balance sheets.
Revenue Recognition	Earnings on construction contracts are reflected in operations using percentage-of-completion accounting, under either cost to cost or units of delivery methods, depending on the nature of the business at individual operations. Under percentage-of-completion using the cost to cost method, revenues and related earnings on construction contracts are measured by the relationships of actual costs incurred related to the total estimated costs. Under percentage-of-completion using the units of delivery method, revenues and related earnings on construction contracts are measured by the relationships of actual units produced related to the total number of units. Revisions in earnings estimates on the construction contracts are recorded in the accounting period in which the basis for such revisions becomes known. Projected losses on individual contracts are charged to operations in their entirety when such losses become apparent. Construction contract revenue was approximately $59 million and $55 million through the first six months of 2015 and 2014, respectively. Our construction contracts are generally entered into with a fixed price and completion of the projects can range from 6 to 18 months in duration. Therefore, our operating results are impacted by, among many other things, labor rates and commodity costs. During the year, we update our estimated costs to complete our projects using current labor and commodity costs and recognize losses to the extent that they exist.

Disclosure of accounting policy for revenue recognition for long-term construction-type contracts accounted for using the percentage-of-completion method. The disclosure would generally be expected to include the method or methods of measuring extent of progress toward completion. If the entity departs from using the percentage-of-completion method for a single contract or a group of contracts for which reasonably dependable estimates cannot be made, such a departure from the basic policy is disclosed. The disclosure may also describe the accounting for significant changes in estimate.