Intangibles and Goodwill - Intangible Assets (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Summary of amortizable intangible assets:
Finite-lived intangible assets, gross	$ 174,317,979		$ 174,317,979
Less accumulated amortization	(30,784,159)		(26,785,810)
Intangible assets, net	$ 143,533,820		147,532,169
Weighted average useful life	14 years 4 months 24 days
Amortization of expense	$ 3,998,349	$ 1,132,092
Estimated amortization expense for the next five years and thereafter:
Remainder of 2016	11,806,079
2017	14,243,799
2018	12,861,305
2019	11,470,909
2020	10,638,587
Thereafter	82,513,141
Intangible assets, net	143,533,820		147,532,169
Customer relationships
Summary of amortizable intangible assets:
Finite-lived intangible assets, gross	$ 145,138,979		145,138,979
Weighted average useful life	14 years 9 months 18 days
Carrier relationships
Summary of amortizable intangible assets:
Finite-lived intangible assets, gross	$ 18,300,000		18,300,000
Weighted average useful life	17 years
Noncompete agreements
Summary of amortizable intangible assets:
Finite-lived intangible assets, gross	$ 5,239,000		5,239,000
Weighted average useful life	6 years 8 months 12 days
Trade names
Summary of amortizable intangible assets:
Finite-lived intangible assets, gross	$ 5,640,000		$ 5,640,000
Weighted average useful life	4 years