Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies Operating Lease Commitments (Details)

v2.4.1.9
Commitments and Contingencies Operating Lease Commitments (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Future Minimum Lease Payments Under Operating Leases      
2015 $ 3,158,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent    
2016 1,769,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears    
2017 931,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears    
2018 804,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears    
2019 813,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears    
Thereafter 4,200,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter    
Minimum lease payments 11,675,000us-gaap_OperatingLeasesFutureMinimumPaymentsDue    
Rent expense 4,100,000us-gaap_LeaseAndRentalExpense 2,400,000us-gaap_LeaseAndRentalExpense 500,000us-gaap_LeaseAndRentalExpense
PMG Stock Purchase      
Future Minimum Lease Payments Under Operating Leases      
Other commitments $ 1,800,000us-gaap_OtherCommitment
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Lease term 25 years