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Supplemental Cash Flow Disclosures (Tables) | 6 Months Ended
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Dec. 31, 2011
Supplemental Cash Flow Disclosures [Abstract] |
Supplemental Disclosure Of Cash Flow Information |
|  | Three months ended December 31, |  |  | Six months ended December 31, |
|  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
Supplemental disclosure of cash flow information: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash paid during the period for interest |  | $ | 1,139 |  |  | $ | 2,057 |  |  | $ | 3,721 |  |  | $ | 4,307 |
Cash received during the period for interest |  | $ | 290 |  |  | $ | 299 |  |  | $ | 442 |  |  | $ | 539 |
Cash paid during the period for income taxes |  | $ | 7,891 |  |  | $ | 4,444 |  |  | $ | 8,657 |  |  | $ | 4,891 |

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