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Fair Value Measurements - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jul. 16, 2015
May 04, 2015
Sep. 30, 2015
Jun. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Impairment charges recorded         $ 0 $ 586 $ 0
Loss on disposal, net of associated transaction costs     $ 73        
Services Business | Discontinued Operations Disposed of by Sale              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Impairment charges recorded         0 1,350 0
Loss on disposal, net of associated transaction costs $ 73       $ 0 73 $ 0
Selling costs $ 764   $ 764     $ 764  
Nonrecurring Fair Value Measurements              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Service Business assets, fair value   $ 572          
Estimate selling costs   778          
Nonrecurring Fair Value Measurements | Services Business | Discontinued Operations Held-for-sale              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Impairment charges recorded   $ 1,350   $ 1,350