Supplemental Financial Information - Other Current and Non-Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Other current assets, net:
Trade accounts receivable - DISH Network	$ 10,948	$ 10,683
Inventory	88,446	79,621
Prepaids and deposits	52,380	50,145
Contract acquisition costs, net	14,290	16,869
Other, net	23,823	22,213
Other Assets, Current	189,887	179,531
Other non-current assets, net:
Restricted marketable investment securities	1,711	8,093
Restricted cash	8,278	2,458
Deferred tax assets, net	7,145	7,251
Capitalized software, net	104,401	101,786
Other, net	25,917	22,628
Total other non-current assets, net	339,640	334,841
DISH Network
Other current assets, net:
Trade accounts receivable - DISH Network	10,948	10,683
Other non-current assets, net:
Other receivables - DISH Network	93,299	92,892
Contract Acquisition Costs
Other non-current assets, net:
Capitalized costs, net	96,107	96,723
Contract Fulfillment Costs
Other non-current assets, net:
Capitalized costs, net	$ 2,782	$ 3,010