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QUARTERLY DATA -UNAUDITED (Tables) | 12 Months Ended
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Mar. 31, 2013
QUARTERLY DATA -UNAUDITED [Abstract] |
Condensed Quarterly Financial Information | We reviewed our RSA agreements and identified that certain RSAs issued contain non-forfeitable rights to dividends prior to their vesting. As a result, those RSAs are considered participating securities which requires us to use the two-class method to compute basic and diluted earnings per shares. Accordingly, we have corrected our reported earnings per share for the corresponding periods. Condensed quarterly financial information is as follows (amounts in thousands, except per share amounts):
|  | Year Ended March 31, 2013 |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |  |  | Annual Amount |
|  | Previously |  |  | Adjust- |  |  |  |  |  | Previously |  |  | Adjust- |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Reported |  |  | ments |  |  | As restated |  |  | Reported |  |  | ments |  |  | As restated |  |  | As reported |  |  | As reported |  |  | As reported |
Total revenues |  | $ | 244,724 |  |  | $ | - |  |  | $ | 244,724 |  |  | $ | 260,051 |  |  | $ | - |  |  | $ | 260,051 |  |  | $ | 242,025 |  |  | $ | 236,312 |  |  | $ | 983,112 |
Total costs and expenses |  |  | 231,161 |  |  |  | - |  |  |  | 231,161 |  |  |  | 243,143 |  |  |  | - |  |  |  | 243,143 |  |  |  | 226,496 |  |  |  | 223,567 |  |  |  | 924,367 |
Earnings before provision for income taxes |  |  | 13,563 |  |  |  | - |  |  |  | 13,563 |  |  |  | 16,908 |  |  |  | - |  |  |  | 16,908 |  |  |  | 15,529 |  |  |  | 12,745 |  |  |  | 58,745 |
Provision for income taxes |  |  | 5,501 |  |  |  | - |  |  |  | 5,501 |  |  |  | 6,875 |  |  |  | - |  |  |  | 6,875 |  |  |  | 6,496 |  |  |  | 5,043 |  |  |  | 23,915 |
Net earnings |  | $ | 8,062 |  |  | $ | - |  |  | $ | 8,062 |  |  | $ | 10,033 |  |  | $ | - |  |  | $ | 10,033 |  |  | $ | 9,033 |  |  | $ | 7,702 |  |  | $ | 34,830 |
Net earnings per common share—Basic (1) |  | $ | 1.04 |  |  | $ | (0.03 | ) |  | $ | 1.01 |  |  | $ | 1.29 |  |  | $ | (0.03 | ) |  | $ | 1.26 |  |  | $ | 1.11 |  |  | $ | 0.96 |  |  | $ | 4.37 |
Net earnings per common share—Diluted (1) |  | $ | 1.02 |  |  | $ | (0.02 | ) |  | $ | 1.00 |  |  | $ | 1.27 |  |  | $ | (0.02 | ) |  | $ | 1.25 |  |  | $ | 1.11 |  |  | $ | 0.95 |  |  | $ | 4.32 |
|  | Year Ended March 31, 2012 |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |  |  | Annual Amount |
|  | Previously |  |  | Adjust- |  |  |  |  |  | Previously |  |  | Adjust- |  |  |  |  |  | Previously |  |  | Adjust- |  |  |  |  |  | Previously |  |  | Adjust- |  |  |  |  |  |  |
|  | Reported |  |  | ments |  |  | As restated |  |  | Reported |  |  | ments |  |  | As restated |  |  | Reported |  |  | ments |  |  | As restated |  |  | Reported |  |  | ments |  |  | As restated |  |  | As restated |
Total revenues |  | $ | 178,899 |  |  | $ | - |  |  | $ | 178,899 |  |  | $ | 203,655 |  |  | $ | - |  |  | $ | 203,655 |  |  | $ | 224,028 |  |  | $ | - |  |  | $ | 224,028 |  |  | $ | 218,999 |  |  | $ | - |  |  | $ | 218,999 |  |  | $ | 825,581 |
Total costs and expenses |  |  | 172,616 |  |  |  | - |  |  |  | 172,616 |  |  |  | 191,807 |  |  |  | - |  |  |  | 191,807 |  |  |  | 209,594 |  |  |  | - |  |  |  | 209,594 |  |  |  | 211,990 |  |  |  | - |  |  |  | 211,990 |  |  |  | 786,007 |
Earnings before provision for income taxes |  |  | 6,283 |  |  |  | - |  |  |  | 6,283 |  |  |  | 11,848 |  |  |  | - |  |  |  | 11,848 |  |  |  | 14,434 |  |  |  | - |  |  |  | 14,434 |  |  |  | 7,009 |  |  |  | - |  |  |  | 7,009 |  |  |  | 39,574 |
Provision for income taxes |  |  | 2,580 |  |  |  | - |  |  |  | 2,580 |  |  |  | 4,784 |  |  |  | - |  |  |  | 4,784 |  |  |  | 5,691 |  |  |  | - |  |  |  | 5,691 |  |  |  | 3,152 |  |  |  | - |  |  |  | 3,152 |  |  |  | 16,207 |
Net earnings |  | $ | 3,703 |  |  | $ | - |  |  | $ | 3,703 |  |  | $ | 7,064 |  |  | $ | - |  |  | $ | 7,064 |  |  | $ | 8,743 |  |  | $ | - |  |  | $ | 8,743 |  |  | $ | 3,857 |  |  | $ | - |  |  | $ | 3,857 |  |  | $ | 23,367 |
Net earnings per common share—Basic (1) |  | $ | 0.45 |  |  | $ | (0.02 | ) |  | $ | 0.43 |  |  | $ | 0.87 |  |  | $ | (0.04 | ) |  | $ | 0.83 |  |  | $ | 1.12 |  |  | $ | (0.04 | ) |  | $ | 1.08 |  |  | $ | 0.50 |  |  | $ | (0.02 | ) |  | $ | 0.48 |  |  | $ | 2.82 |
Net earnings per common share—Diluted (1) |  | $ | 0.44 |  |  | $ | (0.01 | ) |  | $ | 0.43 |  |  | $ | 0.85 |  |  | $ | (0.03 | ) |  | $ | 0.82 |  |  | $ | 1.10 |  |  | $ | (0.03 | ) |  | $ | 1.07 |  |  | $ | 0.49 |  |  | $ | (0.01 | ) |  | $ | 0.48 |  |  | $ | 2.79 |
(1) | Basic and diluted earnings per share are computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted earnings per share.

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306 + Details
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