XML 33 R21.htm IDEA: XBRL DOCUMENT
v3.21.1

Nature of Business and Financial Statement Presentation (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Non-cash Investing and Financing Activities | Non-cash investing and financing activities are summarized as follows (in millions):
| Three Months |
| Ended March 31, |
| 2021 |  |  | 2020 |
Dividends declared, but not paid | $ | 28.3 |  |  | $ | 44.0 |
Accounts payable related to construction in progress |  | 5.7 |  |  |  | 7.7 |
Tax receivable |  | 4.1 |  |  |  | — |
Assumption of buildings due to ground lease terminations |  | — |  |  |  | 3.0 |

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

X
- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration