Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		24 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021
Restructuring costs by type [Abstract]
Severance costs and other benefits	$ 111	$ 4,688	$ 136	$ 4,222	$ 14,454
Facility costs	1	209	17	244	4,514
Impairment of Intangible Assets, Finite-lived	0	0	0	0	1,525
Other Restructuring Costs	583	148	1,147	259	1,573
Restructuring costs	695	5,045	1,300	4,725	22,066
Utility and Power Infrastructure
Restructuring costs by type [Abstract]
Severance costs and other benefits	36	811	45	818	2,584
Facility costs	0	1	0	5	348
Impairment of Intangible Assets, Finite-lived	0	0	0	0	1,150
Other Restructuring Costs	1	0	1	0	1
Restructuring costs	37	812	46	823	4,083
Process and Industrial Facilities
Restructuring costs by type [Abstract]
Severance costs and other benefits	(27)	3,082	(22)	2,590	9,096
Facility costs	1	134	1	15	3,189
Impairment of Intangible Assets, Finite-lived	0	0	0	0	375
Other Restructuring Costs	2	148	4	259	430
Restructuring costs	(24)	3,364	(17)	2,864	13,090
Storage and Terminal Solutions
Restructuring costs by type [Abstract]
Severance costs and other benefits	102	640	69	653	1,647
Facility costs	0	1	0	1	879
Other Restructuring Costs	5	0	5	0	5
Restructuring costs	107	641	74	654	2,531
Corporate
Restructuring costs by type [Abstract]
Severance costs and other benefits	0	155	44	161	1,127
Facility costs	0	73	16	223	98
Other Restructuring Costs	575	0	1,137	0	1,137
Restructuring costs	$ 575	$ 228	$ 1,197	$ 384	$ 2,362