Annual report pursuant to Section 13 and 15(d)

Valuation and Qualifying Accounts (Detail)

v2.4.0.8
Valuation and Qualifying Accounts (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Valuation And Qualifying Accounts [Abstract]      
Balance at Beginning of Period $ 8,926 $ 9,300 $ 10,026
Additions Charged to Cost and Expense 3,456 2,554 2,069
Deductions Bad Debt Write-offs (1,573) (2,928) (2,795)
Balance at End of Period $ 10,809 $ 8,926 $ 9,300