XML 62 R21.htm IDEA: XBRL DOCUMENT
v3.20.1

Fair Value Information (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2020
Fair Value Disclosures [Abstract] |
Schedule of fair value of financial instruments | The following table includes the fair value of our financial instruments for which disclosure of fair value is required (in millions):
|  |  | March 31, 2020 |  |  |  | December 31, 2019 |  |
| Fair Value Hierarchy Level |  | Carrying Amount |  | Estimated Fair Value |  | Carrying Amount |  | Estimated Fair Value
Assets |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 1 |  | $ | 187.7 |  |  | $ | 187.7 |  |  | $ | 205.3 |  |  | $ | 205.3 |
Liabilities |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 1 |  | 248.2 |  |  | 245.7 |  |  | 248.1 |  |  | 254.5 |

X
- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13467-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueByBalanceSheetGroupingTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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