Quarterly report pursuant to Section 13 or 15(d)

Business Acquisitions (Details 2)

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Business Acquisitions (Details 2) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Prima Capital Holding, Inc. [Member]
 
Summary of intangible assets acquired, estimated useful lives and amortization method  
Intangible assets acquired, Amount $ 4,940
Prima Capital Holding, Inc. [Member] | Customer list [Member]
 
Summary of intangible assets acquired, estimated useful lives and amortization method  
Intangible assets acquired, Amount 3,740
Intangible assets acquired, Weighted Average Useful Life 10 years
Prima Capital Holding, Inc. [Member] | Proprietary Technology [Member]
 
Summary of intangible assets acquired, estimated useful lives and amortization method  
Intangible assets acquired, Amount 700
Intangible assets acquired, Weighted Average Useful Life 5 years
Prima Capital Holding, Inc. [Member] | Trade names [Member]
 
Summary of intangible assets acquired, estimated useful lives and amortization method  
Intangible assets acquired, Amount 500
Intangible assets acquired, Weighted Average Useful Life 5 years
Tamarac, Inc. [Member]
 
Summary of intangible assets acquired, estimated useful lives and amortization method  
Intangible assets acquired, Amount 16,150
Tamarac, Inc. [Member] | Customer list [Member]
 
Summary of intangible assets acquired, estimated useful lives and amortization method  
Intangible assets acquired, Amount 8,680
Intangible assets acquired, Weighted Average Useful Life 12 years
Tamarac, Inc. [Member] | Proprietary Technology [Member]
 
Summary of intangible assets acquired, estimated useful lives and amortization method  
Intangible assets acquired, Amount 5,880
Intangible assets acquired, Weighted Average Useful Life 8 years
Tamarac, Inc. [Member] | Trade names [Member]
 
Summary of intangible assets acquired, estimated useful lives and amortization method  
Intangible assets acquired, Amount $ 1,590
Intangible assets acquired, Weighted Average Useful Life 5 years