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Basis of Presentation (Tables) | 9 Months Ended
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Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Effect of Previously Reported Statements of Operations | The following schedule depicts the effect on our previously reported statements of operations.
| Quarter Ended September 30, 2020 |  | Nine Months Ended September 30, 2020
(in thousands) | As reported (a) |  | Change |  | Revised |  | As reported (a) |  | Change |  | Revised
Cost of sales: |  |  |  |  |  |  |  |  |  |  |
Products | $ | 50,038 |  |  | $ | (1,825) |  |  | $ | 48,213 |  |  | $ | 153,069 |  |  | $ | (5,119) |  |  | $ | 147,950 |
Services | 27,511 |  |  | 1,825 |  |  | 29,336 |  |  | 80,593 |  |  | 5,119 |  |  | 85,712 |
Total cost of sales | $ | 77,549 |  |  | $ | — |  |  | $ | 77,549 |  |  | $ | 233,662 |  |  | $ | — |  |  | $ | 233,662 |
(a) As reported represents amounts derived from Note 25 to the consolidated financial statements as of and for the year ended December 31, 2020 and as disclosed in Note 1 to the consolidated financial statements as of and for the quarter ended March 31, 2021.

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=124437754&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=124437754&loc=d3e725-108305 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794 + Details
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