Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Aggregate amount of goodwill acquired	$ 222,500,000	$ 212,800,000
Aggregate amount of impairment				$ 60,700,000
Goodwill, impairment loss	0	0	$ 0
Goodwill	$ 161,820,000	152,020,000	152,156,000
Decrease in projected revenue growth rates	0.90%
Decrease In projected average EBITDA rates	1.05%
Intangible asset impairment	$ 850,000	0	$ 0
Fluid Handling Solutions
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Goodwill	$ 31,600,000
Percentage of fair value in excess of carrying value	7.00%
Certain Tradenames [Member]
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Finite-lived intangible asset, fair value	$ 700,000	$ 3,900,000
Intangible assets, Useful Life	10 years	10 years