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Revenue from Contracts with Customers (Tables) | 12 Months Ended
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Dec. 31, 2021
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | Comparative information of the Company’s overall revenues (in millions) by global and geographical markets for the fiscal years ended December 31, 2021, 2020 and 2019 were as follows:
(in millions) |  | 2021 |  | 2020 |  | 2019
|  | HPMC | AA&S | Total |  | HPMC | AA&S | Total |  | HPMC | AA&S | Total
Diversified Global Markets: |  |  |  |  |  |  |  |  |  |  |  |
Aerospace & Defense |  | $ | 835.5 |  | $ | 297.2 |  | $ | 1,132.7 |  |  | $ | 946.9 |  | $ | 413.1 |  | $ | 1,360.0 |  |  | $ | 1,624.1 |  | $ | 506.3 |  | $ | 2,130.4 |
Energy* |  | 178.3 |  | 413.6 |  | 591.9 |  |  | 106.2 |  | 512.7 |  | 618.9 |  |  | 153.6 |  | 643.3 |  | 796.9 |
Automotive |  | 8.7 |  | 296.4 |  | 305.1 |  |  | 5.5 |  | 257.7 |  | 263.2 |  |  | 10.5 |  | 286.1 |  | 296.6 |
Electronics |  | 1.2 |  | 213.9 |  | 215.1 |  |  | 0.9 |  | 176.8 |  | 177.7 |  |  | 0.5 |  | 162.7 |  | 163.2 |
Food Equipment & Appliances |  | 0.1 |  | 153.0 |  | 153.1 |  |  | — |  | 159.2 |  | 159.2 |  |  | 0.3 |  | 205.5 |  | 205.8 |
Medical |  | 60.3 |  | 71.2 |  | 131.5 |  |  | 47.7 |  | 71.4 |  | 119.1 |  |  | 85.4 |  | 87.0 |  | 172.4 |
Construction/Mining |  | 24.0 |  | 98.2 |  | 122.2 |  |  | 18.6 |  | 123.4 |  | 142.0 |  |  | 42.5 |  | 152.5 |  | 195.0 |
Other |  | 47.0 |  | 101.2 |  | 148.2 |  |  | 38.8 |  | 103.2 |  | 142.0 |  |  | 61.6 |  | 100.6 |  | 162.2 |
Total |  | $ | 1,155.1 |  | $ | 1,644.7 |  | $ | 2,799.8 |  |  | $ | 1,164.6 |  | $ | 1,817.5 |  | $ | 2,982.1 |  |  | $ | 1,978.5 |  | $ | 2,144.0 |  | $ | 4,122.5 |
*Includes the oil & gas, downstream processing, and specialty energy markets.
(in millions) |  | 2021 |  | 2020 |  | 2019
|  | HPMC | AA&S | Total |  | HPMC | AA&S | Total |  | HPMC | AA&S | Total
Primary Geographical Market: |  |  |  |  |  |  |  |  |  |
United States |  | $ | 571.3 |  | $ | 963.6 |  | $ | 1,534.9 |  |  | $ | 641.0 |  | $ | 1,168.1 |  | $ | 1,809.1 |  |  | $ | 1,042.6 |  | $ | 1,412.0 |  | $ | 2,454.6 |
China |  | 49.5 |  | 320.9 |  | 370.4 |  |  | 31.0 |  | 284.5 |  | 315.5 |  |  | 93.9 |  | 261.7 |  | 355.6 |
United Kingdom |  | 136.7 |  | 17.2 |  | 153.9 |  |  | 101.9 |  | 24.6 |  | 126.5 |  |  | 156.7 |  | 17.1 |  | 173.8 |
Germany |  | 74.1 |  | 47.2 |  | 121.3 |  |  | 76.6 |  | 48.8 |  | 125.4 |  |  | 147.2 |  | 72.1 |  | 219.3 |
Hong Kong |  | 76.3 |  | 0.9 |  | 77.2 |  |  | 19.0 |  | 1.2 |  | 20.2 |  |  | 0.9 |  | 0.4 |  | 1.3 |
Canada |  | 36.3 |  | 39.6 |  | 75.9 |  |  | 28.3 |  | 40.6 |  | 68.9 |  |  | 50.7 |  | 55.6 |  | 106.3 |
Rest of World |  | 210.9 |  | 255.3 |  | 466.2 |  |  | 266.8 |  | 249.7 |  | 516.5 |  |  | 486.5 |  | 325.1 |  | 811.6 |
Total |  | $ | 1,155.1 |  | $ | 1,644.7 |  | $ | 2,799.8 |  |  | $ | 1,164.6 |  | $ | 1,817.5 |  | $ | 2,982.1 |  |  | $ | 1,978.5 |  | $ | 2,144.0 |  | $ | 4,122.5 |
Comparative information of the Company’s major high-value and standard products based on their percentages of sales is included in the following table. In conjunction with the Company’s announced ongoing exit of lower-margin standard stainless sheet products in the fourth quarter of 2020 (see Note 19), ATI reclassified certain items as High-Value Products within AA&S segment results. Prior period information reflects these reclassifications. HRPF conversion service sales in the AA&S segment are excluded from this presentation.
|  | 2021 |  | 2020 |  | 2019
|  | HPMC | AA&S | Total |  | HPMC | AA&S | Total |  | HPMC | AA&S | Total
Diversified Products: |  |  |  |  |  |  |  |  |  |  |  |
High-Value Products |  |  |  |  |  |  |  |  |  |  |  |
Nickel-based alloys and specialty alloys |  | 43 | % | 37 | % | 39 | % |  | 38 | % | 35 | % | 36 | % |  | 38 | % | 41 | % | 39 | %
Precision rolled strip |  | — | % | 33 | % | 19 | % |  | — | % | 25 | % | 15 | % |  | — | % | 23 | % | 12 | %
Precision forgings, castings and components |  | 38 | % | — | % | 16 | % |  | 34 | % | — | % | 14 | % |  | 36 | % | — | % | 18 | %
Titanium and titanium-based alloys |  | 19 | % | 6 | % | 12 | % |  | 28 | % | 11 | % | 17 | % |  | 26 | % | 11 | % | 18 | %
Zirconium and related alloys |  | — | % | 17 | % | 10 | % |  | — | % | 15 | % | 9 | % |  | — | % | 11 | % | 6 | %
Total High-Value Products |  | 100 | % | 93 | % | 96 | % |  | 100 | % | 86 | % | 91 | % |  | 100 | % | 86 | % | 93 | %
Standard Products |  |  |  |  |  |  |  |  |  |  |  |
Standard stainless products |  | — | % | 7 | % | 4 | % |  | — | % | 14 | % | 9 | % |  | — | % | 14 | % | 7 | %
Total |  | 100 | % | 100 | % | 100 | % |  | 100 | % | 100 | % | 100 | % |  | 100 | % | 100 | % | 100 | %
Schedule of Accounts Receivable - Reserve for Doubtful Accounts | The following represents the rollforward of accounts receivable - reserve for doubtful accounts for the fiscal years ended December 31, 2021, 2020 and 2019:
(in millions)
Accounts Receivable - Reserve for Doubtful Accounts
Balance as of December 31, 2018 | $ | 6.0 |
Expense to increase the reserve | 0.2 |
Write-off of uncollectible accounts | (1.6) |
Balance as of December 31, 2019 | 4.6 |
Expense to increase the reserve | 0.2 |
Write-off of uncollectible accounts | (0.5) |
Balance as of December 31, 2020 | 4.3 |
Expense to increase the reserve | 0.3 |
Write-off of uncollectible accounts | (0.8) |
Balance as of December 31, 2021 | $ | 3.8 |
Schedule of Contract Assets and Liabilities | The following represents the rollforward of contract assets and liabilities for the fiscal years ended December 31, 2021, 2020 and 2019:
(in millions) |
Contract Assets |
Short-term | 2021 | 2020 | 2019
Balance as of beginning of fiscal year | $ | 38.9 |  | $ | 38.5 |  | $ | 51.2 |
Recognized in current year | 93.8 |  | 84.2 |  | 74.5 |
Reclassified to accounts receivable | (76.2) |  | (83.9) |  | (79.9) |
Reclassification to/from long-term and contract liability | (2.6) |  | 0.1 |  | — |
Divestiture | — |  | — |  | (7.3) |
Balance as of period end | $ | 53.9 |  | $ | 38.9 |  | $ | 38.5 |
Long-term | 2021 | 2020 | 2019
Balance as of beginning of fiscal year | $ | — |  | $ | 0.1 |  | $ | 0.1 |
Recognized in current year | — |  | — |  | — |
Reclassified to accounts receivable | — |  | — |  | — |
Reclassification to/from short-term | — |  | (0.1) |  | — |
Balance as of period end | $ | — |  | $ | — |  | $ | 0.1 |
(in millions) |
Contract Liabilities |
Short-term | 2021 | 2020 | 2019
Balance as of beginning of fiscal year | $ | 111.8 |  | $ | 78.7 |  | $ | 71.4 |
Recognized in current year | 161.5 |  | 170.3 |  | 126.1 |
Amounts in beginning balance reclassified to revenue | (84.1) |  | (54.9) |  | (49.2) |
Current year amounts reclassified to revenue | (72.9) |  | (90.1) |  | (76.0) |
Divestiture | (0.8) |  | — |  | — |
Other | 0.1 |  | — |  | 1.9 |
Reclassification to/from long-term and contract asset | 0.6 |  | 7.8 |  | 4.5 |
Balance as of period end | $ | 116.2 |  | $ | 111.8 |  | $ | 78.7 |
Long-term | 2021 | 2020 | 2019
Balance as of beginning of fiscal year | $ | 32.0 |  | $ | 25.9 |  | $ | 7.3 |
Recognized in current year | 56.6 |  | 14.9 |  | 24.2 |
Amounts in beginning balance reclassified to revenue | (1.0) |  | (1.0) |  | (1.1) |
Current year amounts reclassified to revenue | — |  | — |  | — |
Reclassification to/from short-term | (3.2) |  | (7.8) |  | (4.5) |
Balance as of period end | $ | 84.4 |  | $ | 32.0 |  | $ | 25.9 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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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 http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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