Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended		21 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Jun. 30, 2021
Restructuring costs by type [Abstract]
Severance costs and other benefits	$ 25	$ (466)	$ 14,343
Facility costs	16	35	4,513
Impairment of Intangible Assets, Finite-lived	0	0	1,525
Other Restructuring Costs	564	111	990
Restructuring costs	605	(320)	21,371
Restructuring costs reserve [Roll Forward]
Restructuring reserve balance	2,192		2,192	$ 2,435
Cash payments	(272)
Operating lease and fixed asset impairments due to restructuring	29
Utility and Power Infrastructure [Member]
Restructuring costs by type [Abstract]
Severance costs and other benefits	9	7	2,548
Facility costs	0	4	349
Impairment of Intangible Assets, Finite-lived	0	0	1,150
Restructuring costs	9	11	4,047
Process and Industrial Facilities
Restructuring costs by type [Abstract]
Severance costs and other benefits	5	(492)	9,123
Facility costs	0	(119)	3,187
Impairment of Intangible Assets, Finite-lived	0	0	375
Other Restructuring Costs	2	111	428
Restructuring costs	7	(500)	13,113
Storage and Terminal Solutions
Restructuring costs by type [Abstract]
Severance costs and other benefits	(33)	13	1,544
Facility costs	0	0	879
Restructuring costs	(33)	13	2,423
Corporate [Member]
Restructuring costs by type [Abstract]
Severance costs and other benefits	44	6	1,128
Facility costs	16	150	98
Other Restructuring Costs	562	0	562
Restructuring costs	$ 622	$ 156	$ 1,788