Issuances of Common Stock (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Schedule of common stock issuances pursuant to DRSPP program

The following table outlines common stock issuances pursuant to our DRSPP program (dollars in millions):

	Year Ended December 31,
	2019		2018		2017
Shares of common stock issued under the DRSPP program	117,522		166,268		1,193,653
Gross proceeds	$	8.4	$	9.1	$	69.9

Schedule of common stock issuances pursuant to ATM program

The following table outlines common stock issuances pursuant to our ATM program (dollars in millions):

	Year Ended December 31,
	2019		2018		2017
Shares of common stock issued under the ATM program	17,051,456		19,138,610		10,914,088
Gross proceeds	$	1,274.5	$	1,125.4	$	621.7