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Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Allowance for Doubtful Accounts [Member] |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance, beginning of year | $ 2,703 | $ 2,725 | $ 2,858
Provision | 7 | 1,061 | 945
Write-offs, recoveries and discounts allowed | (275) | (946) | (1,119)
Other | (196) | (137) | 41
Balance, end of year | 2,239 | 2,703 | 2,725
Allowance for Sales Discounts and Deductions [Member] |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance, beginning of year | 1,809 | 1,810 | 2,302
Provision | 3,856 | 4,356 | 5,526
Write-offs, recoveries and discounts allowed | (3,649) | (4,719) | (6,148)
Other | (423) | 362 | 130
Balance, end of year | $ 1,593 | $ 1,809 | $ 1,810

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