Property, Plant and Equipment

6 Months Ended

Jun. 30, 2021

Property Plant And Equipment [Abstract]

Property, Plant and Equipment

Note 8. Property, Plant and Equipment

The carrying value of property, plant and equipment is as follows:

(Thousands)	Depreciable Lives			June 30, 2021			December 31, 2020
Land	Indefinite			$	27,936		$	27,945
Building and improvements	3 - 40 years				358,570			351,305
Poles	30 years				273,934			266,758
Fiber	30 years				3,875,028			3,737,372
Equipment	5 - 7 years				314,256			298,912
Copper	20 years				3,902,265			3,850,987
Conduit	30 years				89,960			89,773
Tower assets	20 years				8,544			8,571
Finance lease assets		(1	)		71,444			74,103
Other assets	15 - 20 years				10,644			10,553
Corporate assets	3 - 7 years				13,829			13,475
Construction in progress		(1	)		85,562			47,086
					9,031,972			8,776,840
Less accumulated depreciation					(5,631,217	)		(5,503,487	)
Net property, plant and equipment				$	3,400,755		$	3,273,353
(1) See our Annual Report for property, plant and equipment accounting policies.

Depreciation expense for the three and six months ended June 30, 2021 was $64.9 million and $131.1 million, respectively. Depreciation expense for the three and six months ended June 30, 2020 was $77.2 million and $155.0 million, respectively.