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Commitments and Contingencies
 3 Months Ended
Mar. 30, 2013
Commitments and Contingencies [Abstract]  
Commitments and Contingencies
10.  Commitments and Contingencies
 
Legal  Proceedings
 
During the first three months of fiscal 2013, there were no material changes to our previously disclosed legal proceedings. Additionally, we are, and from time to time may be, a party to routine legal proceedings incidental to the operation of our business. The outcome of any pending or threatened proceedings is not expected to have a material adverse effect on our financial condition, operating results or cash flows, based on our current understanding of the relevant facts. Legal expenses incurred related to these contingencies are generally expensed as incurred.
 
Environmental and Legal Matters
 
From time to time, we are involved in various proceedings incidental to our businesses and we are subject to a variety of environmental and pollution control laws and regulations in all jurisdictions in which we operate. Although the ultimate outcome of these proceedings cannot be determined with certainty, based on presently available information management believes that adequate reserves have been established for probable losses with respect thereto. Management further believes that the ultimate outcome of these matters could be material to operating results in any given quarter but will not have a materially adverse effect on our long-term financial condition, our results of operations, or our cash flows.
 
Collective Bargaining Agreements
 
As of March 30, 2013, approximately 30% of our employees were represented by various labor unions.  As of March 30, 2013, we had 42 collective bargaining agreements, of which 10, covering approximately 132 total employees, are up for renewal in fiscal 2013.  We consider our relationship with our employees generally to be good.