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Accrued Expenses and Other Current Liabilities (Tables) | 12 Months Ended
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Jul. 31, 2023
Accrued Liabilities, Current [Abstract] |
Accrued expenses and other current liabilities | Accrued expenses and other current liabilities consist of the following at July 31, 2023 and 2022:
|  | 2023 |  | 2022
Accrued wages and benefits |  | $ | 21,994,000 |  |  | 25,675,000 |
Accrued contract costs |  | 19,041,000 |  |  | 15,921,000 |
Accrued warranty obligations |  | 8,285,000 |  |  | 9,420,000 |
Accrued commissions and royalties |  | 4,659,000 |  |  | 5,697,000 |
Accrued legal costs |  | 688,000 |  |  | 2,514,000 |
Other |  | 12,323,000 |  |  | 13,435,000 |
Accrued expenses and other current liabilities |  | $ | 66,990,000 |  |  | 72,662,000 |
Product warranty rollforward | Changes in our accrued warranty obligations during the fiscal years ended July 31, 2023 and 2022 were as follows:
|  | 2023 |  | 2022 |  |
Balance at beginning of year |  | $ | 9,420,000 |  |  | 17,600,000 |  |  |
Provision for (benefit from) warranty obligations |  | 3,158,000 |  |  | (1,255,000) |  |  |
Adjustments for changes in estimates |  | (2,300,000) |  |  | (2,500,000) |  |  |
Charges incurred |  | (1,993,000) |  |  | (4,425,000) |  |  |
Balance at end of year |  | $ | 8,285,000 |  |  | 9,420,000 |  |  |
During fiscal 2023 and 2022, we recorded benefits of $2,300,000 and $2,500,000, respectively, to cost of sales in our Terrestrial and Wireless Networks segment due to lower than expected warranty claims associated with previously acquired NG-911 technologies.

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-8 + Details
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