Business Combinations (Tables)

6 Months Ended

Jun. 30, 2019

Business Combinations [Abstract]

Revenue and Operating Income (Loss) of Acquisitions

The following table summarizes the revenue and operating income (loss) of these acquisitions for the periods presented subsequent to their date of acquisition.

	For the Three Month Period Ended June 30,					For the Six Month Period Ended June 30,
	2019		2018			2019		2018
Revenue	$	29.2	$	15.7		$	55.0	$	23.6
Operating income (loss)		4.6		(0.9	)		6.6		(2.0	)