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Segment Information (Details 1) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2011
Summary of revenues and long lived assets according to geographic areas |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 235,560 | [1] | $ 225,970 | $ 221,436 | [2] | $ 209,608 | $ 184,862 | [1] | $ 183,899 | $ 200,964 | $ 169,321 | $ 892,574 | $ 739,046 | $ 627,052
Long-Lived Assets | 113,959 |  |  |  |  |  | 91,422 |  |  |  |  | 113,959 | 91,422 | 90,005
Domestic [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of revenues and long lived assets according to geographic areas |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 814,879 | 674,496 | 596,756
Long-Lived Assets | 101,581 |  |  |  |  |  | 85,290 |  |  |  |  | 101,581 | 85,290 | 83,312
International [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of revenues and long lived assets according to geographic areas |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 77,695 | 64,550 | 30,296
Long-Lived Assets | $ 12,378 |  |  |  |  |  | $ 6,132 |  |  |  |  | $ 12,378 | $ 6,132 | $ 6,693
[1] | The fourth quarter of fiscal 2013 includes a pretax charge on a Canadian project of $0.6 million. The fourth quarter of fiscal 2012 included an income tax charge of $3.1 million. The income tax charge represents adjustments of $2.1 million for prior fiscal years and $1.0 million in fiscal 2012, of which $0.2 million related to fourth quarter activity.
[2] | The second quarter of fiscal 2013 includes a pretax charge on a Canadian project of $3.3 million

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