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1. Basis of Presentation and Use of Estimates Basis of Presentation and Use of Estimates (Tables) | 6 Months Ended
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Jun. 30, 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 |  |  |  | Six Months Ended |  |
|  | June 30, |  |  |  | June 30, |  |
|  | 2020 |  | 2019 |  | 2020 |  | 2019
Europe |  | $ | 174.0 |  |  | $ | 188.2 |  |  | $ | 369.7 |  |  | $ | 374.1 |
Asia |  | 129.0 |  |  | 127.3 |  |  | 240.4 |  |  | 233.7 |
United States |  | 205.4 |  |  | 222.1 |  |  | 434.9 |  |  | 448.2 |
Other (primarily Canada and Latin America) |  | 28.5 |  |  | 35.0 |  |  | 63.5 |  |  | 70.6 |
Total net sales |  | $ | 536.9 |  |  | $ | 572.6 |  |  | $ | 1,108.5 |  |  | $ | 1,126.6 |
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 six month period ended June 30, 2020 and 2019 were as follows (in millions):
| Six Months Ended |
| June 30, |
| 2020 | 2019
Balance at beginning of period | $ | 9.0 |  | $ | 10.1 |
Provision for warranty | 2.9 |  | 4.8 |
Actual warranty costs | (4.0) |  | (5.4) |
Balance at end of period | $ | 7.9 |  | $ | 9.5 |
Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block] | Allowance for Doubtful Accounts We record trade accounts receivable at the net invoice value and such receivables are non-interest bearing. We consider receivables past due based on the contractual payment terms. We review our exposure to accounts receivable and reserve for amounts if collectability is no longer reasonably assured based on an assessment of various factors including historical loss rates and expectations of forward-looking loss estimates. Any adjustments made to our 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. Changes in our allowance for doubtful accounts were as follows (in millions):
December 31, 2019 | $ | 20.2 |
Provision for expected credit losses | 1.2 |
Write-offs charged against the allowance | (1.2) |
Recoveries collected | 0.1 |
June 30, 2020 | $ | 20.3 |

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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=120391452&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=121611835&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=120311839&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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