Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical)

v2.4.0.6
CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Current assets    
Accounts receivable, less allowance for doubtful accounts $ 15,049 $ 16,986