Property and Equipment

9 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Property and equipment consisted of the following:


		As of		As of
	Useful life	September 30, 2019		December 31, 2018
Non-communications:
Computer equipment and software	1-5 years	$	161,420	137,705
Building and building improvements	5-48 years	38,621		50,138
Office furniture and equipment	1-10 years	24,354		22,796
Leasehold improvements	1-15 years	10,193		9,327
Transportation equipment	5-10 years	5,049		5,123
Land	—	1,400		3,328
Construction in progress	—	3,740		3,578
		244,777		231,995
Accumulated depreciation - non-communications		(147,266)		(123,003)
Non-communications, net property and equipment		97,511		108,992

Communications:
Network plant and fiber	4-15 years	246,971		215,787
Customer located property	3-4 years	25,966		21,234
Central office	5-15 years	17,499		15,688
Transportation equipment	4-10 years	6,728		6,580
Computer equipment and software	1-5 years	5,443		4,943
Other	1-39 years	3,391		3,219
Land	—	70		70
Construction in progress	—	2,051		6,344
		308,119		273,865
Accumulated depreciation - communications		(63,229)		(38,073)
Communications, net property and equipment		244,890		235,792
Total property and equipment, net		$	342,401	344,784

The Company recorded depreciation expense on its property and equipment of $19.7 million and $15.1 million during the three months ended September 30, 2019 and 2018, respectively, and $51.6 million and $41.1 million during the nine months ended September 30, 2019 and 2018, respectively.