XML 50 R13.htm IDEA: XBRL DOCUMENT v2.4.0.6
INVENTORIES
3 Months Ended
Mar. 31, 2013
INVENTORIES  
INVENTORIES
7.     INVENTORIES
 
Inventories of $132,682,000 at March 31, 2013 and $140,867,000 at December 31, 2012 consist of raw materials, parts and supplies.