Business Combinations - Assets and Liabilities Acquired (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Nov. 30, 2019
Assets:
Goodwill	$ 508,660	$ 506,953
Yahsat
Assets:
Cash and cash equivalents			$ 8,110
Other current assets, net			7,106
Property and equipment			86,983
Regulatory authorization			4,498
Goodwill			6,076
Other non-current assets, net			1,502
Total assets			114,275
Liabilities:
Trade accounts payable			3,879
Accrued expenses and other current liabilities			4,796
Total liabilities			8,675
Total purchase price			$ 105,600