Quarterly Financial Information (Unaudited) (Additional Information) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Gross profit	$ 31,982	$ 38,193	$ 35,990	$ 32,377	$ 29,217	$ 31,691	$ 33,889	$ 27,700	$ 138,542	$ 122,497	$ 114,978
Net income	4,420	12,785	10,813	9,169	5,319	11,186	$ 10,817	18,937	37,187	46,259	21,847
Discrete tax benefits related to the completion of a tax credit project and release of reserves for previously uncertain tax positions						1,200
Long-lived asset impairment charge related to Solutech									0	$ 1,354	0
Discrete income tax charges related to changes in state tax legislation					1,200
Restatement Adjustment | Overstatement of Net Income
Business Acquisition [Line Items]
Net income					$ (400)	$ 400
Reduction of net income due to overstatement (in dollars per share)					$ 0.02
Thermal/Acoustical Metals Segment
Business Acquisition [Line Items]
Settlement expense	3,500								3,500
Thermal/Acoustical Metals Segment | Restatement Adjustment
Business Acquisition [Line Items]
Gross profit	(900)	(400)	(500)
Net income	(600)	(300)	(300)
Life Sciences Vital Fluids | Disposed of by Sale
Business Acquisition [Line Items]
After-tax gain due to the sale of Life Sciences Vital Fluids								$ 11,800
Solutech
Business Acquisition [Line Items]
Long-lived asset impairment charge related to Solutech					$ 1,400
Corporate
Business Acquisition [Line Items]
Transaction related costs									$ 3,700		$ 2,600
Texel
Business Acquisition [Line Items]
Purchase accounting adjustment to gross profit	(300)	(1,600)
Purchase accounting adjustment to net income	(200)	(1,200)
Texel | Corporate
Business Acquisition [Line Items]
Transaction related costs	$ 800	$ 800	$ 1,100	$ 400