Income Taxes - Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Assets:
Asbestos-related liability	$ 16,503	$ 19,044
Net operating loss – domestic	14,633	15,115
Net operating loss – foreign	10,514	9,289
Net operating loss – state	3,095	3,248
Sale-leaseback	10,510	10,204
Employment – related liabilities	5,330	5,221
Interest expense limitation	3,141	1,929
Operating lease right-of-use liabilities	1,124	1,161
Impairment charge associated with investment in Anhui	958	953
Inventory related	210
Capital loss carryforwards	189	192
Other	1,284	594
Gross deferred income tax assets	69,803	72,249
Valuation allowance	(41,019)	(41,041)
Deferred tax assets, net, Total	28,784	31,208
Liabilities:
Depreciation	(24,190)	(25,408)
Operating lease assets	(1,124)	(1,161)
Intangible assets – indefinite life	(430)	(464)
Intangible assets – finite life	(15)	(112)
Pension asset – foreign		(224)
Inventory related		(674)
Other	(624)	(548)
Gross deferred income tax liabilities	(26,383)	(28,591)
Net deferred income tax assets	2,401	2,617
Domestic Tax Authority [Member]
Assets:
Pension liability	2,283	$ 5,299
Foreign Tax Authority [Member]
Assets:
Pension liability	$ 29