XML 21 R55.htm IDEA: XBRL DOCUMENT v2.4.0.8
Significant Accounting Policies (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
site
Dec. 31, 2012
Dec. 31, 2011
Significant Accounting Policies [Line Items]      
Allowance for doubtful accounts receivable, minimum 90 days    
Number of geographic reporting units 3    
Period to calculate the fair value of reporting units 5 years    
Goodwill impairment $ 0 $ 0 $ 0
Software development costs capitalized 250 0 7,863
Amortization of software development costs 1,439 1,440 1,046
Net capitalized software costs aggregated 5,234 6,424 7,864
Senior convertible notes, rate 5.50%    
Advertising expense 6,010 3,972 1,516
International [Member]
     
Significant Accounting Policies [Line Items]      
Revenue percentage 44.50%    
Licenses And Patent Costs [Member]
     
Significant Accounting Policies [Line Items]      
Licenses, patent and other long lived assets impairment $ 0 $ 0 $ 0
Minimum [Member]
     
Significant Accounting Policies [Line Items]      
Sale payment period 30 days    
Property and equipment, useful life, in years 3 years    
Intangible assets, useful life 1 year    
Minimum [Member] | Capitalized Software Costs [Member]
     
Significant Accounting Policies [Line Items]      
Intangible assets, useful life 2 years    
Minimum [Member] | Licenses And Patent Costs [Member]
     
Significant Accounting Policies [Line Items]      
Intangible assets, useful life 7 years    
Maximum [Member]
     
Significant Accounting Policies [Line Items]      
Warranty agreement period 1 year    
Sale payment period 60 days    
Property and equipment, useful life, in years 30 years    
Intangible assets, useful life 20 years    
Maximum [Member] | Capitalized Software Costs [Member]
     
Significant Accounting Policies [Line Items]      
Intangible assets, useful life 8 years    
Maximum [Member] | Licenses And Patent Costs [Member]
     
Significant Accounting Policies [Line Items]      
Intangible assets, useful life 20 years