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Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Property Plant And Equipment [Line Items]
Property, plant and equipment	$ 444,515		$ 444,515		$ 439,205
Finance lease assets gross value	3,416		3,416		3,795
Finance lease, lease related accumulated depreciation	1,947		1,947		$ 1,966
Depreciation expense	$ 4,076	$ 7,021	$ 12,448	$ 16,851
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Long-Term Debt and Lease Obligation, Current		Long-Term Debt and Lease Obligation, Current		Long-Term Debt and Lease Obligation, Current
Depreciation on assets under finance leases	$ 95	$ 81	$ 287	$ 237
Land and Land Improvements and Buildings and Leasehold Improvements [Member] \| Sale and Leaseback Financing Obligations [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment	$ 55,990		55,990
UES Domestic [Member] \| Construction-in-Process, Machinery and Equipment or Buildings [Member]
Property Plant And Equipment [Line Items]
Machinery and equipment purchased			$ 24,239