Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Amortizable intangible assets:
Gross	$ 547,514	$ 543,442
Accumulated Amortization	(107,576)	(87,258)
Net	439,938	456,184
Intangible assets, gross	552,729	548,107
Total	445,153	460,849
Telecommunication licenses
Amortizable intangible assets:
Non-amortizable intangible assets:	4,920	4,370
Domain names
Amortizable intangible assets:
Non-amortizable intangible assets:	32	32
Trademarks and other
Amortizable intangible assets:
Non-amortizable intangible assets:	263	263
Developed technology
Amortizable intangible assets:
Gross	334,599	333,980
Accumulated Amortization	(67,259)	(55,390)
Net	267,340	278,590
Customer relationships
Amortizable intangible assets:
Gross	185,594	182,339
Accumulated Amortization	(33,296)	(26,347)
Net	152,298	155,992
Supplier relationships
Amortizable intangible assets:
Gross	4,356	4,356
Accumulated Amortization	(2,006)	(1,532)
Net	2,350	2,824
Trade names
Amortizable intangible assets:
Gross	20,060	20,060
Accumulated Amortization	(4,727)	(3,727)
Net	15,333	16,333
Patent
Amortizable intangible assets:
Gross	2,905	2,707
Accumulated Amortization	(288)	(262)
Net	$ 2,617	$ 2,445