Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details 7)

v2.4.0.8
Summary of Significant Accounting Policies (Details 7) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
item
Dec. 31, 2012
Dec. 31, 2011
Advertising expenses                      
Advertising expenses incurred                 $ 3,037 $ 1,815 $ 2,718
Comprehensive income (loss)                      
Notional amount of interest rate swap contract 50,000               50,000    
Segment Reporting                      
Number of operating segments                 1    
Maximum percentage of net sales outside North America                 3.00%    
Product offerings                      
Net Sales 72,997 52,026 55,156 14,141 28,200 37,774 65,499 8,560 194,320 140,033 208,798
Equipment
                     
Product offerings                      
Net Sales                 164,460 123,308 177,806
Parts and accessories
                     
Product offerings                      
Net Sales                 $ 29,860 $ 16,725 $ 30,992