Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		36 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022
Restructuring costs by type [Abstract]
Severance costs and other benefits	$ 1,044	$ 111	$ 2,313	$ 136	$ 17,226
Facility costs	126	1	128	17	4,659
Impairment of Intangible Assets, Finite-lived	0	0	0	0	1,525
Other Restructuring Costs	108	583	124	1,147	567
Restructuring costs	1,278	695	2,565	1,300	23,977
Restructuring cost - closure of office in the second quarter of fiscal 2023	700
Utility and Power Infrastructure
Restructuring costs by type [Abstract]
Severance costs and other benefits	0	36	37	45	2,621
Facility costs	0	0	0	0	348
Impairment of Intangible Assets, Finite-lived	0	0	0	0	1,150
Other Restructuring Costs	0	1	0	1	1
Restructuring costs	0	37	37	46	4,120
Process and Industrial Facilities
Restructuring costs by type [Abstract]
Severance costs and other benefits	354	(27)	666	(22)	9,762
Facility costs	0	1	2	1	3,208
Impairment of Intangible Assets, Finite-lived	0	0	0	0	375
Other Restructuring Costs	28	2	28	4	(1,143)
Restructuring costs	382	(24)	696	(17)	12,202
Storage and Terminal Solutions
Restructuring costs by type [Abstract]
Severance costs and other benefits	379	102	902	69	2,548
Facility costs	0	0	0	0	879
Other Restructuring Costs	4	5	4	5	32
Restructuring costs	383	107	906	74	3,459
Corporate
Restructuring costs by type [Abstract]
Severance costs and other benefits	311	0	708	44	2,295
Facility costs	126	0	126	16	224
Other Restructuring Costs	76	575	92	1,137	1,677
Restructuring costs	$ 513	$ 575	$ 926	$ 1,197	$ 4,196