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1. Basis of Presentation and Use of Estimates Basis of Presentation and Use of Estimates (Tables) | 3 Months Ended
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Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Revenue from External Customers by Geographic Areas [Table Text Block] | The following table presents our revenues disaggregated by geographic region based primarily on the location of the use of the product or service (in millions, unaudited):
|  | Three Months Ended
|  | March 31,
|  | 2020 |  | 2019
Europe |  | $ | 195.7 |  |  | $ | 185.9 |
Asia |  | 111.4 |  |  | 106.4 |
United States |  | 229.5 |  |  | 226.1 |
Other (primarily Canada and Latin America) |  | 35.0 |  |  | 35.6 |
Total net sales |  | $ | 571.6 |  |  | $ | 554.0 |
Schedule of Product Warranty Liability [Table Text Block] | Warranty liabilities are included in Other current liabilities and Other long-term liabilities in the Condensed Consolidated Balance Sheets. Change in our warranty liability for the three month period ended March 31, 2020 and 2019 were as follows (in millions):
| Three Months Ended
| March 31,
| 2020 | 2019
Balance at beginning of period | $ | 9.0 |  | $ | 10.1 |
Provision for warranty | 1.9 |  | 1.4 |
Actual warranty costs | (2.7 | ) | (2.2 | )
Balance at end of period | $ | 8.2 |  | $ | 9.3 |
Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block] | Allowance for Doubtful Accounts In our evaluation of bad debt allowances, we have considered past events, current conditions and reasonable and supportable forecasts about the future. We have considered what, if any, differences in future economic conditions are anticipated from our historical loss experience and based on current economic conditions to result in our required allowance for doubtful accounts as of March 31, 2020, while reflecting that our account receivable portfolio is heavily current in nature. The adjustments made to historical loss experience reflect current differences in asset-specific risk characteristics, including, for example, accounts receivable by customer type (public or government entity versus private entity) and by geographic location of customer. Components of our allowance for doubtful accounts were as follows (in millions):
December 31, 2019 | $ | 20.2 |
Provision for expected credit losses | (0.9 | )
Write-offs charged against the allowance | (0.5 | )
Recoveries collected | 0.1 |
March 31, 2020 | $ | 18.9 |

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- Definition Disclosure of accounting policy for determining the allowance for doubtful accounts for trade and other accounts receivable balances, and when impairments, charge-offs or recoveries are recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 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(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5144-111524 + Details
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- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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