Derivative Financial Instruments - Summary of Fair Value of Derivatives by Balance Sheet Line Item (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	$ 2,123	$ 5,619
Other Non-current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	607	723
Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	5,658	6,595
Other Non-current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	21,878	14,196
Foreign Exchange Forward Contracts and Collars Designated as Hedging Instruments [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	1,015	3,065
Foreign Exchange Forward Contracts and Collars Designated as Hedging Instruments [Member] | Designated as Hedging Instrument [Member] | Other Non-current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	532	723
Foreign Exchange Forward Contracts and Collars Designated as Hedging Instruments [Member] | Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	4,413	4,922
Foreign Exchange Forward Contracts and Collars Designated as Hedging Instruments [Member] | Designated as Hedging Instrument [Member] | Other Non-current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	13,503	8,405
Foreign Exchange Forward Contracts and Collars Designated as Hedging Instruments [Member] | Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	266	721
Foreign Exchange Forward Contracts and Collars Designated as Hedging Instruments [Member] | Not Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	3	206
Aluminum Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	842
Aluminum Forward Contracts [Member] | Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets		1,833
Cross Currency Swap Not Designated as Hedging Instrument [Member] | Not Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	949	1,467
Cross Currency Swap Not Designated as Hedging Instrument [Member] | Not Designated as Hedging Instrument [Member] | Other Non-current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities		1,106
Interest Rate Swap Contracts Designated as Hedges [Member] | Designated as Hedging Instrument [Member] | Other Non-current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	75
Interest Rate Swap Contracts Designated as Hedges [Member] | Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	293
Embedded derivative liability [Member] | Other Non-current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	$ 8,375
Embedded derivative liability [Member] | Not Designated as Hedging Instrument [Member] | Other Non-current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities		$ 4,685