XML 52 R23.htm IDEA: XBRL DOCUMENT
v3.20.1

Revenue (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2020
Revenue Recognition and Deferred Revenue [Abstract] |
Disaggregation of revenue | We disaggregate our revenue by geographical region as follows:
Net Sales |  | Three months ended March 31,
|  | 2020 |  | 2019
United States |  | $ | 274.1 |  |  | $ | 325.2 |
Iceland |  | 147.1 |  |  | 164.8 |
Total |  | $ | 421.2 |  |  | $ | 490.0 |

X
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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