Revenue and Segment Information - Revenue, Income, Goodwill and Identifiable Assets by Location (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net Sales	$ 362,005	$ 311,189
Income from Operations	29,119	25,438
Goodwill	198,726		$ 202,406
Total Identifiable Assets	1,338,015		1,205,742
Vegetation Management
Segment Reporting Information [Line Items]
Net Sales	221,006	183,884
Income from Operations	18,334	16,750
Goodwill	129,473		132,963
Total Identifiable Assets	892,028		789,838
Industrial Equipment
Segment Reporting Information [Line Items]
Net Sales	140,999	127,305
Income from Operations	10,785	$ 8,688
Goodwill	69,253		69,443
Total Identifiable Assets	$ 445,987		$ 415,904