Annual report pursuant to Section 13 and 15(d)

Note 21. Quarterly Consolidated Results of Operations (Unaudited) (Details)

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Note 21. Quarterly Consolidated Results of Operations (Unaudited) (Details) (USD $)
In Thousands, except Per Share data
3 Months Ended 12 Months Ended
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2009
Sep. 30, 2009
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2009
Total Revenues $ 892,439 $ 834,059 $ 766,327 $ 682,342 $ 559,419 $ 478,299 $ 440,355 $ 342,687 $ 3,175,167 $ 1,820,760 $ 1,520,216
Total costs and operating expenses 548,370 522,280 497,461 446,726 398,577 387,020 393,260 327,737 2,014,837 1,506,594 2,098,157
Gross margin 536,259 506,363 454,929 418,373 331,500 269,734 233,069 170,795      
Income from operations 344,069 311,779 268,866 235,616 160,842 91,279 47,095 14,950 1,160,330 314,166 (577,941)
Net income (loss) $ 245,017 $ 209,783 $ 185,492 $ 154,196 $ 113,085 $ 57,016 $ 21,794 $ 20,405 $ 794,488 $ 212,300 $ (523,368)
Net income per share:                      
Basic net income (loss) per share $ 1.46 [1] $ 1.25 [1] $ 1.11 [1] $ 0.92 [1] $ 0.67 [1] $ 0.33 [1] $ 0.13 [1] $ 0.12 [1] $ 4.75 $ 1.24 $ (3.07)
Diluted net income (loss) per share $ 1.43 [1] $ 1.22 [1] $ 1.09 [1] $ 0.91 [1] $ 0.66 [1] $ 0.33 [1] $ 0.13 [1] $ 0.12 [1] $ 4.66 $ 1.23 $ (3.07)
[1] Basic and diluted earnings per share are computed independently for each of the quarters presented based on the weighted average basic and fully diluted shares outstanding for each quarter. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted earnings per share.