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Commitments and Contingencies Commitments and Contingencies (Non-Compete, Consulting and Employment Agreements) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
USD ($)
Other Commitments [Line Items]  
Other Commitment, Due in Next Twelve Months $ 5,636
Other Commitment, Due in Second Year 2,125
Other Commitment, Due in Third Year 1,550
Other Commitment, Due in Fourth Year 1,182
Other Commitment, Due in Fifth Year 994
Other Commitment, Due after Fifth Year 1,593
Other Commitment 13,080
Noncompete Agreements  
Other Commitments [Line Items]  
Other Commitment, Due in Next Twelve Months 2,407
Other Commitment, Due in Second Year 1,326
Other Commitment, Due in Third Year 1,111
Other Commitment, Due in Fourth Year 881
Other Commitment, Due in Fifth Year 776
Other Commitment, Due after Fifth Year 1,576
Other Commitment 8,077
Consulting Agreement [Member]  
Other Commitments [Line Items]  
Other Commitment, Due in Next Twelve Months 1,509
Other Commitment, Due in Second Year 680
Other Commitment, Due in Third Year 439
Other Commitment, Due in Fourth Year 301
Other Commitment, Due in Fifth Year 218
Other Commitment, Due after Fifth Year 17
Other Commitment 3,164
Employment Agreement [Member]  
Other Commitments [Line Items]  
Other Commitment, Due in Next Twelve Months 1,720
Other Commitment, Due in Second Year 119
Other Commitment, Due in Third Year 0
Other Commitment, Due in Fourth Year 0
Other Commitment, Due in Fifth Year 0
Other Commitment, Due after Fifth Year 0
Other Commitment $ 1,839
Minimum  
Other Commitments [Line Items]  
Other Commitment, Term of Contract 1 year
Minimum | Noncompete Agreements  
Other Commitments [Line Items]  
Other Commitment, Term of Contract 1 year
Minimum | Consulting Agreement [Member]  
Other Commitments [Line Items]  
Other Commitment, Term of Contract 1 year
Minimum | Employment Agreement [Member]  
Other Commitments [Line Items]  
Other Commitment, Term of Contract 3 years
Maximum  
Other Commitments [Line Items]  
Other Commitment, Term of Contract 12 years
Maximum | Noncompete Agreements  
Other Commitments [Line Items]  
Other Commitment, Term of Contract 10 years
Maximum | Consulting Agreement [Member]  
Other Commitments [Line Items]  
Other Commitment, Term of Contract 10 years
Maximum | Employment Agreement [Member]  
Other Commitments [Line Items]  
Other Commitment, Term of Contract 4 years