Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 1,176,810	$ 2,087,103	$ 91,635
Changes in other comprehensive (loss) income:
Unrealized holding gains on marketable securities, net of tax of zero, zero and $(2.7) million, respectively	1,039	58	6,954
Unrealized (losses) gains on foreign currency forward contracts, net of tax of $7.0 million, $(7.1) million and $3.4 million, respectively	(14,003)
Unrealized (losses) gains on foreign currency forward contracts, net of tax of $7.0 million, $(7.1) million and $3.4 million, respectively		27,438	(26,530)
Foreign currency translation adjustment	10,332	8,855	(13,169)
Total changes in other comprehensive (loss) income	(2,632)	36,351	(32,745)
Comprehensive income	1,174,178	2,123,454	58,890
Comprehensive loss attributable to noncontrolling interest	0	9,793	171,849
Comprehensive income attributable to Vertex	$ 1,174,178	$ 2,133,247	$ 230,739