XML 42 R40.htm IDEA: XBRL DOCUMENT v2.4.0.6
Accounts Receivable, net (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Accounts receivable, net    
Gross accounts receivable $ 119,310 $ 111,637
Allowance for doubtful accounts (10,975) (9,932)
Total accounts receivable, net $ 108,335 $ 101,705