XML 21 R15.htm IDEA: XBRL DOCUMENT
v3.25.3

Contract Assets and Contract Liabilities | 9 Months Ended
--- | ---
Sep. 30, 2025
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract] |
Contract Assets and Contract Liabilities | 6. Contract Assets and Contract Liabilities Contract assets included within prepaid expenses and other current assets in the condensed consolidated balance sheets are as follows (in thousands):
|  | September 30, 2025 |  |  | December 31, 2024 |
Contract assets |  | $ | 3,748 |  |  | $ | 5,678 |
The non-current contract liabilities balance is included in other long-term liabilities on the condensed consolidated balance sheets. The Company’s contract liabilities are as follows (in thousands):
|  | September 30, 2025 |  |  | December 31, 2024 |
Contract liabilities |  | $ | 12,150 |  |  | $ | 13,598 |
Less: Non-current portion of contract liabilities |  |  | 2,081 |  |  |  | 3,131 |
Current portion of contract liabilities |  | $ | 10,069 |  |  | $ | 10,467 |
The Company recognized $0.9 million and $6.4 million of revenue from the opening contract liabilities balance for the three and nine months ended September 30, 2025, respectively.

X
- Definition Contract with customer asset and liability. + References No definition available. + Details
Name: | atec_ContractWithCustomerAssetAndLiabilityTextblock
Namespace Prefix: | atec_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ContractWithCustomerAssetAndLiabilityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration