XML 51 R39.htm IDEA: XBRL DOCUMENT v3.10.0.1
Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Other current assets    
Assets:    
Derivative financial instruments $ 809 $ 250
Other assets    
Assets:    
Equity securities 357 332
Accrued expenses and other current liabilities    
Liabilities:    
Derivative financial instruments 141 957
Fair Value Measurements, Level 1 | Other assets    
Assets:    
Equity securities 357 332
Fair Value Measurements, Level 2 | Other current assets    
Assets:    
Derivative financial instruments 809 250
Fair Value Measurements, Level 2 | Accrued expenses and other current liabilities    
Liabilities:    
Derivative financial instruments $ 141 $ 957