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Short-term and long-term debt (Detail) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Short-term debt:    
- Revolving credit line and other debt $ 29,065 $ 65,152
- Long-term debt: current 1,050 1,050
Subtotal 30,115 66,202
Long-term debt:    
- Term Loan Facility 103,163 103,950
- Vehicle and equipment loans 8 39
- Capital lease obligations 5 20
- Less: deferred financing costs on term loan (3,501) (2,851)
Subtotal 99,675 101,158
Total short-term & long-term debt [1] $ 129,790 $ 167,360
[1] Long-term debt is net of deferred financing costs.