Organization and Significant Accounting Policies - Fair Value Measurements (Detail) - Fair value, measurements, recurring - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	$ 51,673	$ 54,244
Total liabilities at fair value	(51,210)	(54,670)
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	48,545	54,244
Total liabilities at fair value	(48,545)	(54,244)
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	3,128	0
Total liabilities at fair value	(2,665)	(426)
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	0	0
Total liabilities at fair value	0	0
Non-qualified deferred compensation assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-qualified deferred compensation assets	48,545	54,244
Non-qualified deferred compensation liabilities	48,545	54,244
Non-qualified deferred compensation assets | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-qualified deferred compensation assets	48,545	54,244
Non-qualified deferred compensation liabilities	48,545	54,244
Non-qualified deferred compensation assets | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-qualified deferred compensation assets	0	0
Non-qualified deferred compensation liabilities	0	0
Non-qualified deferred compensation assets | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-qualified deferred compensation assets	0	0
Non-qualified deferred compensation liabilities	0	$ 0
Interest rate contracts, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts, net	(2,665)
Interest rate contracts, net | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts, net	0
Interest rate contracts, net | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts, net	(2,665)
Interest rate contracts, net | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts, net	0
Foreign exchange contracts, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	(3,128)
Interest rate contracts, net	(426)
Foreign exchange contracts, net | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0
Interest rate contracts, net	0
Foreign exchange contracts, net | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	(3,128)
Interest rate contracts, net	(426)
Foreign exchange contracts, net | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0
Interest rate contracts, net	$ 0