Acquisitions - Acquisitions Narrative (Details) - USD ($)			3 Months Ended
	Dec. 31, 2016	Jul. 07, 2016	Mar. 31, 2017	Mar. 31, 2016	Jul. 06, 2016
Business Acquisition [Line Items]
Amortization expense			$ 1,000,000
Fair value adjustments to inventory			500,000
Acquisition related expenses			100,000
Net income			11,669,000	$ 9,169,000
Revolving Credit Facility | Amended Credit Facility
Business Acquisition [Line Items]
Maximum borrowing capacity		$ 175,000,000
Revolving Credit Facility | Amended Credit Facility
Business Acquisition [Line Items]
Maximum borrowing capacity		$ 175,000,000	175,000,000.0		$ 100,000,000
Gutsche
Business Acquisition [Line Items]
Percentage of voting interest acquired	100.00%
Cash payment to acquire business	$ 57,600,000
Estimated post-closing working capital adjustment	3,000,000
Purchase price borrowings	31,600,000
Net sales of acquiree since acquisition date			11,200,000
Operating income of acquiree since acquisition date			300,000
Purchase accounting inventory fair value step-up adjustment			300,000
Investment in joint venture	$ 0
Texel
Business Acquisition [Line Items]
Percentage of voting interest acquired		100.00%
Cash payment to acquire business		$ 102,700,000
Purchase price borrowings		85,000,000.0
Net sales of acquiree since acquisition date			15,100,000
Operating income of acquiree since acquisition date			400,000
Purchase accounting inventory fair value step-up adjustment			$ 100,000
Investment in joint venture		$ 616,000
Reclassification from cost of sales				300,000
Reclassification to net sales				300,000
Texel | Afitex Texel Geosynthetiques, Inc.
Business Acquisition [Line Items]
Interest in joint venture as part of acquisition		50.00%
Investment in joint venture		$ 600,000
Texel Brand and Gutsche
Business Acquisition [Line Items]
Amortization expense				1,100,000
Depreciation expense				400,000
Interest expense				400,000
Texel Brand and Gutsche | Acquisition-related Costs
Business Acquisition [Line Items]
Net income				$ 600,000