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Income Taxes | 6 Months Ended
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Mar. 31, 2021
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes The calculation of the effective tax rate is as follows (in thousands):
| Three months ended March 31, |  | Six months ended March 31,
| 2021 |  | 2020 |  | 2021 |  | 2020
Income (loss) before income taxes | $ | (1,171) |  |  | $ | 9,555 |  |  | $ | (1,430) |  |  | $ | 12,888 |
Income tax provision (benefit) | (946) |  |  | 2,134 |  |  | (841) |  |  | 2,692 |
Net income (loss) | $ | (225) |  |  | $ | 7,421 |  |  | $ | (589) |  |  | $ | 10,196 |
Effective tax rate | 81 | % |  | 22 | % |  | 59 | % |  | 21 | %
Our income tax provision (benefit) reflects an effective tax rate on pre-tax income (loss) of 81% for the second quarter of Fiscal 2021 compared to 22% for the second quarter of Fiscal 2020. For the three and six months ended March 31, 2021, the income tax benefit largely resulted from the relative amounts of income/loss recognized in various tax jurisdictions, the utilization of net operating loss carryforwards in Canada that have been fully reserved with a valuation allowance, and the estimated Research and Development Tax Credit (R&D Tax Credit). The effective tax rate for the three and six months ended March 31, 2020 was favorably impacted by the R&D Tax Credit as well as the projected utilization of net operating loss carryforwards in Canada that were fully reserved with a valuation allowance. These favorable impacts were offset by the valuation allowance recorded against our UK deferred tax assets as a discrete item during the second quarter of Fiscal 2020.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32857-109319 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330215-122817 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32705-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 270 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 + Details
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