Investments (Tables)

3 Months Ended

Mar. 31, 2019

Investments [Abstract]

Schedule of other investments which do not have readily determinable fair values

Investments consist of the following:

(in thousands)	March 31, 2019		December 31, 2018
Domestic equity funds	$	1,628	$	1,409
International equity funds	409		370
Total investments carried at fair value	2,037		1,779
CoBank	7,925		7,705
Equity in other telecommunications partners	779		782
Total investments carried at cost	8,704		8,487
Other	533		522
Total equity method investments	533		522
Total investments	$	11,274	$	10,788