Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets, Net and Goodwill (Narrative) (Details)

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Intangible Assets, Net and Goodwill (Narrative) (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Summary of Identifiable Intangible Assets [Line Items]          
Amortization of Intangible Assets $ 1,234,000 $ 333,000 $ 1,567,000 $ 665,000  
Estimated annual amortization expense for intangible assets subject to amortization, 2014 7,056,000   7,056,000    
Estimated annual amortization expense for intangible assets subject to amortization, 2015 5,147,000   5,147,000    
Estimated annual amortization expense for intangible assets subject to amortization, 2016 5,147,000   5,147,000    
Estimated annual amortization expense for intangible assets subject to amortization, 2017 3,883,000   3,883,000    
Estimated annual amortization expense for intangible assets subject to amortization, 2018 2,980,000   2,980,000    
Goodwill $ 69,257,000 $ 14,438,000 $ 69,257,000 $ 14,438,000 $ 14,438,000
Minimum [Member]
          
Summary of Identifiable Intangible Assets [Line Items]          
Estimated useful life     1 year    
Maximum [Member]
          
Summary of Identifiable Intangible Assets [Line Items]          
Estimated useful life     10 years