Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

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, 2016			December 31, 2015
Land	Indefinite	$	26,833		$	26,841
Building and improvements	3 - 40 years		318,967			314,750
Real property interests	50 - 99 years		12,265			-
Poles	13 - 40 years		234,393			228,031
Fiber	7 - 40 years		2,243,822			1,948,192
Equipment	5 - 7 years		130,945			-
Copper	7 - 40 years		3,538,566			3,475,987
Conduit	13 - 47 years		90,540			89,460
Tower assets	20 - 49 years		4,307			1,209
Capital lease assets	See Note 3		89,723			-
Construction in progress	See Note 3		52,685			4,749
Other assets	15 - 20 years		5,299			4,322
Corporate assets	3 - 7 years		2,731			2,319
			6,751,076			6,095,860
Less accumulated depreciation			(4,081,039	)		(3,721,100	)
Net property, plant and equipment		$	2,670,037		$	2,374,760