Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2020

Property Plant And Equipment [Abstract]

Schedule of Carrying Value of Property, Plant and Equipment

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

(Thousands)	Depreciable Lives	December 31, 2020			December 31, 2019
Land	Indefinite	$	27,945		$	28,337
Building and improvements	3 - 40 years		351,305			355,225
Real property interests	See Note 3		-			3,308
Poles	30 years		266,758			258,535
Fiber	30 years		3,737,372			3,456,398
Equipment	5 - 7 years		298,912			293,427
Copper	20 years		3,850,987			3,792,366
Conduit	30 years		89,773			89,770
Tower assets	20 years		8,571			170,063
Finance lease assets	See Note 3		74,103			129,900
Construction in progress	See Note 3		47,086			89,007
Other assets	15 - 20 years		10,553			11,591
Corporate assets	3 - 7 years		13,475			5,552
			8,776,840			8,683,479
Less accumulated depreciation			(5,503,487	)		(5,273,534	)
Property, plant and equipment, net		$	3,273,353		$	3,409,945