Properties And Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Properties And Equipment [Abstract]

Schedule Of Properties And Equipment

		December 31,
		2019		2018
Land	$	8,360	$	7,964
Buildings and building improvements		109,404		96,361
Transportation equipment		41,897		51,559
Machinery and equipment		123,102		111,183
Computer software		57,508		49,928
Furniture and fixtures		79,792		72,898
Projects under development		25,840		20,510
Total properties and equipment		445,903		410,403
Less accumulated depreciation		(270,140)		(248,370)
Net properties and equipment	$	175,763	$	162,033