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Composition Of Certain Financial Statement Captions (Tables) | 6 Months Ended
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Mar. 31, 2023
Composition Of Certain Financial Statement Captions [Abstract] |
Schedule Of Accounts Receivable | Accounts Receivable and Contract Assets
| March 31, 2023 |  | September 30, 2022
Trade accounts receivable | $ | 178,079 |  |  | $ | 162,531 |
Accounts receivable from patent administration program licensees | 115,227 |  |  | 92,896 |
Contract assets | 275,390 |  |  | 176,218 |
Accounts receivable and contract assets, gross | 568,696 |  |  | 431,645 |
Less: allowance for credit losses on accounts receivable and contract assets | (10,119) |  |  | (11,959) |
Total accounts receivable and contract assets, net | $ | 558,577 |  |  | $ | 419,686 |
Schedule Of Allowance For Credit Losses |
Allowance for Credit Losses | Beginning Balance | Charges/(Credits) to S&M and G&A | Additions/(Deductions) | Ending Balance
For fiscal year-to-date period ended: |  |  |  |
September 30, 2022 | $ | 8,952 |  | $ | 5,460 |  | $ | (7) |  | $ | 14,405 |
March 31, 2023 | 14,405 |  | (2,072) |  | (46) |  | 12,287 |
Allowance for credit losses includes the provision for estimated credit losses on our sales-type leases, which was not material as of March 31, 2023 and as of September 30, 2022.
Schedule Of Inventories | Inventories
| March 31, 2023 |  | September 30, 2022
Raw materials | $ | 7,775 |  |  | $ | 10,026 |
Work in process | 3,708 |  |  | 4,955 |
Finished goods | 18,870 |  |  | 8,568 |
Total inventories | $ | 30,353 |  |  | $ | 23,549 |
Schedule Of Prepaid Expenses And Other Current Assets | Prepaid Expenses and Other Current Assets
| March 31, 2023 |  | September 30, 2022
Prepaid expenses | $ | 25,539 |  |  | $ | 26,851 |
Other current assets | 28,314 |  |  | 23,224 |
Total prepaid expenses and other current assets | $ | 53,853 |  |  | $ | 50,075 |
Schedule Of Accrued Liabilities | Accrued Liabilities
| March 31, 2023 |  | September 30, 2022
Amounts payable to patent administration program partners | $ | 78,142 |  |  | $ | 63,106 |
Accrued compensation and benefits | 80,498 |  |  | 84,111 |
Accrued professional fees | 21,083 |  |  | 13,057 |
Unpaid property, plant, and equipment additions | 17,774 |  |  | 15,428 |
Accrued customer refunds | 3,856 |  |  | 3,674 |
Accrued market development funds | 11,279 |  |  | 7,206 |
Other accrued liabilities | 34,125 |  |  | 43,655 |
Total accrued liabilities | $ | 246,757 |  |  | $ | 230,237 |
Schedule Of Other Non-Current Liabilities | Other Non-Current Liabilities
| March 31, 2023 |  | September 30, 2022
Supplemental retirement plan obligations | $ | 3,902 |  |  | $ | 4,127 |
Non-current tax liabilities (1) | 93,465 |  |  | 83,758 |
Other liabilities | 10,799 |  |  | 12,237 |
Total other non-current liabilities | $ | 108,166 |  |  | $ | 100,122 |
(1) Refer to Note 12 "Income Taxes" for additional information related to our tax liabilities.

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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