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Basis of Presentation (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
segment
customer
Mar. 31, 2016
USD ($)
Segment Reporting    
Number of customers accounting for more than 10 percent of revenue for HBC or the Company | customer 0  
Number of operating segments | segment 2  
Income tax expense $ 3,934 $ 3,726
Adjustments for New Accounting Pronouncement    
Segment Reporting    
Income tax expense $ (112)