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Note W - Operating Segment Information (Detail) - (Table 2) (USD $)
In Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Domestic $ 195,724 $ 150,662 $ 352,535 $ 276,659
International 13,428 8,002 22,372 13,613
Total $ 209,152 $ 158,664 $ 374,907 $ 290,272