v2.4.0.8
Changes in Reserves for Credit Losses Related to Accounts Receivable (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Allowance for Doubtful Accounts Receivable [Roll Forward]    
Balance, beginning of period $ 11,709 $ 11,526
Provision for credit losses 13,686 14,874
Charge-offs (21,150) (20,397)
Recoveries of amounts previously charged-off 5,031 4,065
Currency translation (322) 0
Balance, end of period $ 8,954 $ 10,068