Nature of Business and Financial Statement Presentation (Tables)

6 Months Ended

Jun. 30, 2020

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):

	Six Months
	Ended June 30,
	2020		2019
Dividends declared, but not paid	$	5.1	$	44.6
Accounts payable related to construction in progress		4.9		14.3
Assumption of buildings due to ground lease terminations		3.0		—