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Stock-Based Compensation Plans (Details Textual) (USD $) | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2010 | Aug. 31, 2010 | Sep. 30, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of Performance Shares |  |  | 4,373 |  |
Stock based compensation expense | $ 2,733,000 | $ 4,252,000 | $ 5,875,000 |  |
Stock Based Compensation Expenses (Textual) [Abstract] |  |  |  |  |
Unrecognized compensation costs related to non-vested awards | 2,900,000 |  |  |  |
Weighted average period for recognition of compensation costs related to non-vested awards | 2 years 8 months 12 days |  |  |  |
Performance Share Awards Fully Expensed | 800,000 |  |  |  |
Weighted average per share fair value of stock options | $ 5.26 | $ 3.96 | $ 6.78 |  |
Combined voting power minimum | 10.00% |  |  |  |
Stock options granted | 299,832 | 551,773 | 388,635 |  |
Aggregate intrinsic value of the option shares outstanding | 6,200,000 |  |  |  |
Aggregate intrinsic value of the option shares exercisable | 1,000,000 |  | 0 |  |
Remaining contractual life of options outstanding | 4 years 3 months 18 days |  |  |  |
Remaining contractual life of options exercisable | 3 years 2 months 12 days |  |  |  |
Total pre-tax intrinsic value of options exercised | 100,000 |  |  |  |
Common stock options exercised, Shares | 11,379 |  | 20,350 |  |
Company's stock price | $ 29.67 |  |  |  |
Company's stock price | $ 19.00 |  | $ 11.92 | $ 12.03 | $ 24.13
Stock options outstanding related to discontinued operations | 0 |  |  |  |
Stock options exercisable related to discontinued operations | 0 |  |  |  |
Authorized Common Stock | 400,000 |  |  |  |
Incentive Stock Option [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Incentive stock options granted price minimum percentage | 100.00% |  |  |  |
Incentive stock options granted price maximum percentage | 110.00% |  |  |  |
Incentive stock options exercisable rate | 20.00% |  |  |  |
Restricted stock [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Restricted stock awards outstanding related to discontinued operations | 0 |  |  |  |
Number of Performance Shares |  | 66,533 | 30,440 |  |
Performance Shares [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of Performance Shares | 62,497 | 68,533 |  |  |
Stock based compensation expense | 0 | 0 | 0 |  |
Fair value of performance shares for grants awarded | 800,000 | 700,000 |  |  |
2009 Equity incentive plan [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of authorized shares in 2009 plan | 1,500,000 |  |  |  |
Number of shares available for future awards | 1,448,000 |  |  |  |
Maximum [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Percentage of non qualified stock options on each of first four anniversaries | 25.00% |  |  |  |
Percentage of non qualified stock options on each of first five anniversaries | 20.00% |  |  |  |
Restricted Stock Expenses | 200,000 | 600,000 | 100,000 |  |
Performance Shares | 1,000,000 | 200,000 | 100,000 |  |
Annual compensation withheld | 10.00% |  |  |  |
Maximum Limit | 25,000 |  |  |  |
Employee contributions | 100,000 | 100,000 |  |  |
Stock compensation expense recognized | $ 100,000 | $ 100,000 | $ 200,000 |  |
Stock Based Compensation Expenses (Textual) [Abstract] |  |  |  |  |
Company's stock price | $ 19.00 |  |  |  |

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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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