Revenue and Segment Information - Revenue, Income, Goodwill and Identifiable Assets by Location (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net Sales	$ 368,793	$ 338,311	$ 1,127,012	$ 997,050
Income from Operations	35,840	30,043	105,875	89,071
Goodwill	192,946		192,946		$ 202,406
Total Identifiable Assets	1,327,791		1,327,791		1,205,742
Vegetation Management
Segment Reporting Information [Line Items]
Net Sales	228,511	209,796	704,520	608,345
Income from Operations	27,130	21,375	78,261	60,789
Goodwill	125,608		125,608		132,963
Total Identifiable Assets	873,055		873,055		789,838
Industrial Equipment
Segment Reporting Information [Line Items]
Net Sales	140,282	128,515	422,492	388,705
Income from Operations	8,710	$ 8,668	27,614	$ 28,282
Goodwill	67,338		67,338		69,443
Total Identifiable Assets	$ 454,736		$ 454,736		$ 415,904