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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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