Segment Information - Summary of Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	$ 318.2	$ 277.6	$ 609.4	$ 562.0
Segment Operating Adjusted EBITDA	(3.9)	8.3	0.2	16.8
Infrastructure Solutions
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	209.6	179.8	407.1	381.3
Materials Solutions
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	107.4	97.8	201.1	180.7
Operating Segments
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	318.2	277.6	609.4	562.0
Segment Operating Adjusted EBITDA	13.1	20.5	31.9	41.4
Operating Segments | Infrastructure Solutions
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	209.6	179.8	407.1	381.3
Segment Operating Adjusted EBITDA	15.9	16.5	32.3	42.7
Operating Segments | Materials Solutions
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	107.4	97.8	201.1	180.7
Segment Operating Adjusted EBITDA	9.5	15.9	21.7	25.6
Intersegment Eliminations
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	16.0	7.3	26.8	13.7
Intersegment Eliminations | Infrastructure Solutions
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	4.0	2.2	5.1	2.9
Intersegment Eliminations | Materials Solutions
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	12.0	5.1	21.7	10.8
Corporate
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Revenues from external customers	1.2	0.0	1.2	0.0
Segment Operating Adjusted EBITDA	$ (12.3)	$ (11.9)	$ (22.1)	$ (26.9)