Activity Related to Inventory Reserves (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Inventory [Line Items] | |||
| Inventory reserve, January 1 | $ 2.0 | $ 1.7 | $ 1.7 |
| Additions | 0.1 | 1.1 | 0.2 |
| Write-offs | (0.3) | (0.8) | (0.2) |
| Inventory reserve, December 31 | $ 1.8 | $ 2.0 | $ 1.7 |
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- Definition Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of valuation reserve for inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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