XML 41 R31.htm IDEA: XBRL DOCUMENT
v3.20.1

Summary of Significant Accounting Policies (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2020
Accounting Policies [Abstract] |
Impact of ASC 326 | The following table illustrates the impact of the Company's adoption of ASC 326 (in millions):
|  | January 1, 2020 |  |  |  |
|  | As Reported under ASC 326 |  | Prior to ASC 326 Adoption |  | Impact of ASC 326 Adoption
Assets: |  |  |  |  |  |
Allowance for credit losses on accounts receivable and retention |  | $ | 1.6 |  |  | $ | 0.3 |  |  | $ | 1.3 |
Allowance for credit losses on other receivables |  | 4.2 |  |  | 1.6 |  |  | 2.6 |
Allowance for credit losses on costs and estimated earnings in excess of billings on uncompleted contracts |  | 0.1 |  |  | — |  |  | 0.1 |
Total |  |  |  |  |  | $ | 4.0 |
Interest and Other Income (Expense), Net | Interest and other income (expense), net for the three months ended March 31, 2020 and 2019 included the following (in millions):
|  | Three Months Ended March 31, |  |
|  | 2020 |  | 2019
Interest income |  |  | $ | 0.6 |  |  | $ | 0.2 |
Pension and postretirement benefit (expense) |  |  | (0.7) |  |  | (1.2) |
Gain (loss) on sale of joint venture interest |  |  | — |  |  | 2.6 |
Other income (expense) |  |  | 0.3 |  |  | — |
Interest and other income (expense), net |  | 0.2 |  |  | $ | 1.6 |

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

X
- Definition Tabular disclosure of interest income and income classified as other. + References No definition available. + Details
Name: | us-gaap_InterestAndOtherIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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=109234566&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=116846552&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 4: 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=116846552&loc=d3e725-108305 Reference 5: 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=109234566&loc=d3e22583-107794 + Details
Name: | us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration