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Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Jun. 30, 2012 | Jun. 30, 2011
Comprehensive income (loss) (pretax): |  |
Net earnings | $ 127,388 | $ 125,730
Comprehensive income (loss) (tax effect): |  |
Net earnings | (46,819) | (47,507)
Comprehensive income (loss) (net of tax): |  |
Net earnings | 80,569 | 78,223
Other comprehensive income (loss): |  |
Foreign currency translation (pretax) | (1,929) | 992
Foreign currency translation (tax effect) | 0 | 0
Foreign currency translation (net of tax) | (1,929) | 992
Unrealized gain (loss) on investments (pretax) | 1,873 | (5,378)
Unrealized gain (loss) on investments (tax effect) | (580) | 2,001
Unrealized gain (loss) on investments (net of tax) | 1,293 | (3,377)
Change in fair value of cash flow hedges (pretax) | (515) | (3,860)
Change in fair value of cash flow hedges (tax effect) | 196 | 1,467
Change in fair value of cash flow hedges (net of tax) | (319) | (2,393)
Total comprehensive income (loss) (pretax) | 126,817 | 117,484
Total comprehensive income (loss) (tax effect) | (47,203) | (44,039)
Total comprehensive income (loss) (net of tax) | $ 79,614 | $ 73,445

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