Segment and Geographic Information - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Total revenue	$ 117,665	$ 56,567
Total operating expenses	93,138	86,564
Total operating income (loss)	24,527	(29,997)
Operating Segments | Product Licensing Segment
Segment Reporting Information [Line Items]
Total revenue	55,942	44,567
Total operating expenses	45,166	45,757
Total operating income (loss)	10,776	(1,190)
Operating Segments | Semiconductor and IP Licensing Segment
Segment Reporting Information [Line Items]
Total revenue	61,723	12,000
Total operating expenses	10,169	10,238
Total operating income (loss)	51,554	1,762
Unallocated Operating Expenses
Segment Reporting Information [Line Items]
Total operating expenses	37,803	30,569
Total operating income (loss)	$ (37,803)	$ (30,569)