Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Measurement of Assets and Liabilities at Fair Value on Recurring Basis (Detail)

v3.7.0.1
Fair Value Measurements - Measurement of Assets and Liabilities at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities $ 1,787 $ 2,021
Interest rate swaps (1,858) (2,564)
Foreign exchange forward contracts 616 1,695
Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 1,787 2,021
Interest rate swaps (1,858) (2,564)
Foreign exchange forward contracts 616 1,695
Level 1 | Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swaps 0 0
Foreign exchange forward contracts 0 0
Level 2 | Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 0 0
Interest rate swaps (1,858) (2,564)
Level 3 | Fair Value, Measurements, Recurring [Member]    
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