Supplemental Financial Information (Additional Information) (Details) ft² in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($) ft²	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) ft²	Sep. 30, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges	$ 1,007	$ 9,413	$ 3,260	$ 9,413
Restructuring charges	622	9,027	$ 2,875	9,027
Severance benefits expensed	$ 0
Land subject to ground leases | ft²	108		108
Lease term of contract	10 years		10 years
Lease renewal term	5 years		5 years
Fixed assets write-offs	$ 0	0	$ 891	0
Inventory charges	43	0	363	0
Third-party property claims	4,650	0	4,650	0
Lease obligations	60	0	600	0
Professional services	577	0	2,171	0
Compensation & benefits	614	0	1,458	0
Insurance recoveries	5,017	$ 0	6,495	$ 0
UTIS Fire
Restructuring Cost and Reserve [Line Items]
Fixed assets write-offs			900
Inventory charges			400
Lease obligations	500
Professional services	600		2,200
Compensation & benefits	600		1,500
Insurance recoveries	5,000		6,500
Deductible	300		300
AES
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges	1,000		3,200
Elastomeric Material Solutions
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges	$ 0		$ 0