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Income Taxes (Tables) | 12 Months Ended
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Sep. 30, 2020
Income Tax Disclosure [Abstract] |
Provision for Income Taxes | The provision for income taxes was as follows during fiscal 2020, 2019 and 2018:
| Year ended September 30,
| 2020 |  | 2019 |  | 2018
| (In thousands)
Current: |  |  |  |  |
Federal | $ | 14,566 |  |  | $ | 1,299 |  |  | $ | 8,071 |
State | 2,180 |  |  | (423 | ) |  | 2,236 |
Foreign | 12,482 |  |  | 15,371 |  |  | 9,559 |
| 29,228 |  |  | 16,247 |  |  | 19,866 |
Deferred: |  |  |  |  |
Federal | (8,575 | ) |  | 7,003 |  |  | 13,987 |
State | (957 | ) |  | 947 |  |  | 132 |
Foreign | 893 |  |  | (249 | ) |  | (3,535 | )
| (8,639 | ) |  | 7,701 |  |  | 10,584 |
Total provision | $ | 20,589 |  |  | $ | 23,948 |  |  | $ | 30,450 |
Deferred Tax Assets and Liabilities | Deferred tax assets and liabilities at September 30, 2020 and 2019 were as follows:
| September 30,
| 2020 |  | 2019
| (In thousands)
Deferred tax assets: |  |  |
Loss and credit carryforwards | $ | 31,015 |  |  | $ | 26,702 |
Compensation benefits | 29,640 |  |  | 23,931 |
Operating lease liabilities | 21,827 |  |  | — |
Other assets | 9,000 |  |  | 9,393 |
| 91,482 |  |  | 60,026 |
Less: valuation allowance | (24,563 | ) |  | (19,231 | )
Total deferred tax assets | 66,919 |  |  | 40,795 |
Deferred tax liabilities: |  |  |
Intangible assets | (14,715 | ) |  | (15,114 | )
Deferred commission | (9,027 | ) |  | (7,920 | )
Property and equipment | (3,135 | ) |  | (3,511 | )
Operating lease right-of-use assets | (13,719 | ) |  | — |
Other liabilities | (11,694 | ) |  | (8,244 | )
Total deferred tax liabilities | (52,290 | ) |  | (34,789 | )
Deferred tax assets, net | $ | 14,629 |  |  | $ | 6,006 |
Reconciliation Between Federal Statutory Income Tax Rate and Effective Tax Rate | A reconciliation of the provision for income taxes, with the amount computed by applying the U.S. federal statutory income tax rate (21% in each of fiscal 2020 and fiscal 2019, and 24.5% in fiscal 2018) to income before provision for income taxes for fiscal 2020, 2019 and 2018 is shown below:
| Year Ended September 30,
| 2020 |  | 2019 |  | 2018
| (In thousands)
Income tax provision at U.S. federal statutory rate | $ | 53,970 |  |  | $ | 45,375 |  |  | $ | 38,495 |
State income taxes, net of U.S. federal benefit | 4,619 |  |  | 4,194 |  |  | 2,755 |
Foreign tax rate differential | 493 |  |  | 839 |  |  | (649 | )
Research credits | (5,868 | ) |  | (5,761 | ) |  | (3,486 | )
Domestic production deduction | — |  |  | — |  |  | (2,421 | )
Amended returns/audit settlements/statute expirations | (1,085 | ) |  | (2,268 | ) |  | (2,349 | )
Foreign | 7,513 |  |  | 11,177 |  |  | 4,040 |
Valuation allowance | 5,332 |  |  | (333 | ) |  | 1,907 |
Foreign tax credit and foreign withholding tax | 2,086 |  |  | (464 | ) |  | 1,320 |
Excess tax benefits relating to stock-based compensation | (45,086 | ) |  | (24,891 | ) |  | (22,253 | )
Tax effect of the Tax Act | — |  |  | — |  |  | 16,719 |
GILTI, FDII and BEAT | 5,050 |  |  | 1,931 |  |  | — |
Other | (6,435 | ) |  | (5,851 | ) |  | (3,628 | )
Recorded income tax provision | $ | 20,589 |  |  | $ | 23,948 |  |  | $ | 30,450 |
Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits | A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
| Year Ended September 30,
| 2020 |  | 2019 |  | 2018
| (In thousands)
Gross unrecognized tax benefits at beginning of year | $ | 5,834 |  |  | $ | 6,113 |  |  | $ | 6,480 |
Gross increases for tax positions in prior years | 883 |  |  | 509 |  |  | 404 |
Gross decreases for tax positions in prior years | (65 | ) |  | (611 | ) |  | — |
Gross increases based on tax positions related to the current year | 2,260 |  |  | 1,439 |  |  | 1,625 |
Decreases for settlements and payments | — |  |  | (637 | ) |  | — |
Decreases due to statute expiration | (918 | ) |  | (979 | ) |  | (2,396 | )
Gross unrecognized tax benefits at end of year | $ | 7,994 |  |  | $ | 5,834 |  |  | $ | 6,113 |

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- Definition Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32840-109319 + Details
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