CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Supplemental Disclosures of Cash Flow Information Cash payments for:
Capitalized interest	$ 1,559	$ 1,374	$ 436
Other cash flow information:
Common stock issued to acquire non-controlling interests of nTelos	0	10,400
Unamortized loan allocation to long term debt, current maturities		5,200
Increase in fair value of interest rate swaps	2,000
Increase in deferred tax liabilities	500
Increase in accumulated other comprehensive income	$ 1,442	$ 6,373	$ (707)