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Basis of Presentation and Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Property, Plant and Equipment
Property, plant and equipment was comprised of the following at December 31, 2013 and September 30, 2014:
 
December 31, 2013
 
September 30, 2014
 
(in thousands)
Land
$
55,639

 
$
66,080

Buildings and improvements
132,172

 
146,352

Furniture, equipment and automobiles
61,506

 
64,945

Property, plant and equipment, at cost
249,317

 
277,377

Less: accumulated depreciation
(88,627
)
 
(93,595
)
Property, plant and equipment, net
$
160,690

 
$
183,782

Schedule of Unrecognized Tax Benefits
The following table summarizes our unrecognized tax benefit as of December 31, 2013 and September 30, 2014:
 
 
December 31, 2013
 
September 30, 2014
 
 
(in thousands)
Unrecognized tax benefit
 
$
7,832

 
$
515

Interest accrued on unrecognized tax benefits
 
506