XML 73 R94.htm IDEA: XBRL DOCUMENT v2.4.0.8
Summary of Significant Accounting Policies Level 4 Property and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Minimum [Member]
Buildings [Member]
Dec. 31, 2012
Minimum [Member]
Improvements [Member]
Dec. 31, 2012
Minimum [Member]
Office Equipment and Vehicles [Member]
Dec. 31, 2012
Minimum [Member]
Machinery and equipment [Member]
Dec. 31, 2012
Maximum [Member]
Buildings [Member]
Dec. 31, 2012
Maximum [Member]
Improvements [Member]
Dec. 31, 2012
Maximum [Member]
Office Equipment and Vehicles [Member]
Dec. 31, 2012
Maximum [Member]
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]                      
Land $ 34,992 $ 35,662 $ 35,469                
Buildings 88,818 88,129 84,510                
Improvements 34,731 34,526 32,645                
Office equipment and vehicles 85,954 80,857 74,349                
Machinery and equipment 271,166 264,084 253,933                
Construction in progress 9,928 11,176 5,812                
Property and equipment, gross 525,589 514,434 486,718                
Less accumulated depreciation (264,280) (248,510) (220,262)                
Property and equipment, net $ 261,309 $ 265,924 $ 266,456                
Property, Plant and Equipment, Useful Life       20 10 3 7 40 15 7 12