Annual report pursuant to Section 13 and 15(d)

Schedule II - Valuation and Qualifying Accounts (Detail)

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Schedule II - Valuation and Qualifying Accounts (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Allowance for Doubtful Accounts [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at the Beginning of Period $ 650 $ 645 $ 274
Acquisitions   130  
Charged to Cost and Expense 112 88 466
(Write-Offs) Recoveries/Other (622) (213) (95)
Balance at End of Period 140 650 645
Reserve for Inventory Valuation [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at the Beginning of Period 12,026 10,599 11,183
Acquisitions   137  
Charged to Cost and Expense 537 1,544 336
(Write-Offs) Recoveries/Other (1,522) (254) (920)
Balance at End of Period 11,041 12,026 10,599
Deferred Tax Valuation Allowance [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at the Beginning of Period 2,190 1,898 890
Charged to Cost and Expense 319 292 531
(Write-Offs) Recoveries/Other     477
Balance at End of Period $ 2,509 $ 2,190 $ 1,898