Fair Value Measurements - Measurement of Assets and Liabilities at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Jul. 01, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	$ (1,192)	$ (1,858)
Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted Investments	1,933	1,787
Interest rate swaps	(1,192)	(1,858)
Fair Value Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted Investments	1,933	1,787
Interest rate swaps	0	0
Fair Value Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted Investments	0	0
Interest rate swaps	(1,192)	(1,858)
Fair Value Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted Investments	0	0
Interest rate swaps	0	0
Foreign Exchange Forward Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Current	(571)
Derivative Asset, Current	616	$ 616
Foreign Exchange Forward Contract [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Current	0
Derivative Asset, Current	0
Foreign Exchange Forward Contract [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Current	(571)
Derivative Asset, Current	616
Foreign Exchange Forward Contract [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Current	0
Derivative Asset, Current	$ 0