Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2018

Property Plant And Equipment [Abstract]

Summary of Major Categories of Property, Plant and Equipment

Major categories of property, plant and equipment at December 31, 2018 and 2017 are as follows:

	Estimated Life (Years)		2018		2017
Land		—	$	384,264	$	369,690
Building and improvements	10 — 39			173,306		160,494
Advertising structures	5 — 15			2,817,170		2,704,356
Automotive and other equipment	3 — 7			150,985		150,183
			$	3,525,725	$	3,384,723