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Commitments and Contingencies - Additional Information (Detail) $ in Thousands, CAD in Millions			12 Months Ended
	Jun. 03, 2016 CAD	Jun. 03, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) Case	Dec. 31, 2010 USD ($)
Commitments Disclosure [Line Items]
Number of additional cases filed | Case				28
Amount outstanding standby letters of credit			$ 21,500
Provisions to expense			5,500	$ 5,900
Reserves related to environmental remediation			$ 600	$ 900
Minimum
Commitments Disclosure [Line Items]
Warranty Maturity Periods			1 year
Maximum
Commitments Disclosure [Line Items]
Warranty Maturity Periods			5 years
Court Of Common Pleas Philadelphia County [Member]
Commitments Disclosure [Line Items]
Loss Contingency, Damages Sought, Value					$ 100
Potential cash payment Company may be liable for					$ 80
Property Lease Guarantee [Member]
Commitments Disclosure [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted, Annual Amount			$ 1,600
Guarantor Obligations, Maximum Exposure, Undiscounted			$ 3,400
Joe Johnson Equipment [Member]
Commitments Disclosure [Line Items]
Acquisition Deferred Payment	CAD 8.0	$ 6,000

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The amount of environmental remediation liabilities included in liabilities subject to compromise.

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