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Goodwill and Intangible Assets (Detail) - (Table 3) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Goodwill [Line Items]      
2012 (remaining nine months)   $ 3,216  
2013   3,085  
2014   3,014  
2015   2,230  
2016   1,564  
Thereafter   8,328  
Total   21,437  
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) $ 3,045    
Customer Lists [Member]      
Goodwill [Line Items]      
Cost basis   41,509 $ 41,509
Accumulated amortization   21,341 17,869
Net carrying amount   20,168 23,640
Licensing Agreements [Member]      
Goodwill [Line Items]      
Cost basis   5,600 5,600
Accumulated amortization   5,600 5,600
Net carrying amount   0 0
Noncompete Agreements [Member]      
Goodwill [Line Items]      
Cost basis   2,440 2,440
Accumulated amortization   2,426 2,357
Net carrying amount   14 83
Contractual Rights [Member]      
Goodwill [Line Items]      
Cost basis   4,200 4,200
Accumulated amortization   4,200 2,008
Net carrying amount   0 2,192
Other Intangible Assets [Member]      
Goodwill [Line Items]      
Cost basis   14 14
Accumulated amortization   14 14
Net carrying amount   0 0
Total [Member]      
Goodwill [Line Items]      
Cost basis   58,353 58,353
Accumulated amortization   36,916 30,769
Net carrying amount   21,437 27,584
Trademarks [Member]      
Goodwill [Line Items]      
Cost basis   100,333 100,333
Accumulated amortization   0 0
Net carrying amount   $ 97,288 $ 97,288