Accumulated Other Comprehensive Income - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income and Into the Condensed Consolidated Statements of Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	$ 209,357	$ 184,120	$ 395,735	$ 378,878
Other, net	849	835	1,073	1,515
Income tax provision (benefit)	4,021	2,553	11,211	5,161
Net income (loss)	1,410	(2,416)	9,804	4,990
Interest expense	1,772	1,759	3,303	3,537
Reclassifications Out of Accumulated Other Comprehensive Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Net income (loss)	175	(1,167)	254	(2,868)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Accumulated Net (Gain) Loss from Cash Flow Hedges Attributable to Parent [Member]
Defined Benefit Plan Disclosure [Line Items]
Net income (loss)	25	(1,068)	12	(2,668)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Other, net	211	172	422	344
Income tax provision (benefit)	(14)	(23)	(87)	(47)
Net income (loss)	197	149	335	297
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member] | Prior Service Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Other, net	12	11	24	23
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member] | Actuarial Losses [Member]
Defined Benefit Plan Disclosure [Line Items]
Other, net	199	161	398	321
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Other Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other, net	(47)	(324)	(93)	(649)
Income tax provision (benefit)		76		152
Net income (loss)	(47)	(248)	(93)	(497)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Other Pension Plan [Member] | Prior Service Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Other, net	(59)	(116)	(117)	(232)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Other Pension Plan [Member] | Actuarial Gains [Member]
Defined Benefit Plan Disclosure [Line Items]
Other, net	12	(208)	24	(417)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Interest Rate Swap [Member]
Defined Benefit Plan Disclosure [Line Items]
Income tax provision (benefit)	(8)		(15)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Interest Rate Swap [Member] | Accumulated Net (Gain) Loss from Cash Flow Hedges Attributable to Parent [Member]
Defined Benefit Plan Disclosure [Line Items]
Net income (loss)	14		28
Interest expense	(22)		(43)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedges [Member] | Accumulated Net (Gain) Loss from Cash Flow Hedges Attributable to Parent [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	(33)	1,488	(57)	3,670
Income tax provision (benefit)	22	(420)	73	(1,002)
Net income (loss)	$ 11	$ (1,068)	$ (16)	$ (2,668)