v3.3.1.900
Fair Value Measurements - Measurement of Assets and Liabilities at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities $ 2,021 $ 2,244
Interest rate swaps (2,564) (935)
Fair Value Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 2,021 2,244
Interest rate swaps (2,564) (935)
Foreign exchange forward contracts 1,695 1,247
Level 1 | Fair Value Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 2,021 2,244
Interest rate swaps 0 0
Foreign exchange forward contracts 0 0
Level 2 | Fair Value Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 0 0
Interest rate swaps (2,564) (935)
Foreign exchange forward contracts 1,695 1,247
Level 3 | Fair Value Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 0 0
Interest rate swaps 0 0
Foreign exchange forward contracts $ 0 $ 0