Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies [Abstract]

Annual Minimum Lease Payments

For the year ended December 31,	Capital Leases		Operating Leases
2018	$	1,199	$	220,190
2019		654		222,489
2020		226		224,148
2021		31		226,528
2022		—		228,093
Total minimum lease payments		2,110
Less: amount representing interest		(113)
Present value of future payments		1,997
Less: current obligations		(1,147)
Long-term obligations	$	850

Annual Minimum Tower Lease Income

For the year ended December 31,	(in thousands)
2018	$	1,437,107
2019		1,267,458
2020		1,060,017
2021		803,351
2022		536,685