Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details 2)

v2.4.1.9
Commitments and Contingencies (Details 2) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Rent expense for all operating leases      
Rent expense $ 7,488us-gaap_LeaseAndRentalExpense $ 5,103us-gaap_LeaseAndRentalExpense $ 4,008us-gaap_LeaseAndRentalExpense