Commitments and Contingencies (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Contractual obligations
Remainder of 2020	$ 4,736	[1],[2]
2021	18,066	[1],[2]
2022	11,400	[1],[2]
2023	173,692	[1],[2]
2024	0	[1],[2]
Total contractual obligation	207,894	[1],[2]
Unrecognized tax benefit excluding foreign tax withholdings	26,700
Other contractual obligations
Contractual obligations
Remainder of 2020	120	[1],[2]
2021	218	[1],[2]
2022	0	[1],[2]
2023	0	[1],[2]
2024	0	[1],[2]
Total contractual obligation	338	[1],[2]
Software licenses
Contractual obligations
Remainder of 2020	4,117	[1],[2],[3]
2021	11,977	[1],[2],[3]
2022	6,028	[1],[2],[3]
2023	0	[1],[2],[3]
2024	0	[1],[2],[3]
Total contractual obligation	$ 22,122	[1],[2],[3]
Terms of noncancellable license agreements, minimum (in years)	1 year
Acquisition retention bonuses
Contractual obligations
Remainder of 2020	$ 499	[1],[2],[4]
2021	3,499	[1],[2],[4]
2022	3,000	[1],[2],[4]
2023	0	[1],[2],[4]
2024	0	[1],[2],[4]
Total contractual obligation	6,998	[1],[2],[4]
Convertible notes
Contractual obligations
Remainder of 2020	0	[1],[2]
2021	0	[1],[2]
2022	0	[1],[2]
2023	172,500	[1],[2]
2024	0	[1],[2]
Total contractual obligation	172,500	[1],[2]
Interest payments related to convertible notes
Contractual obligations
Remainder of 2020	0	[1],[2]
2021	2,372	[1],[2]
2022	2,372	[1],[2]
2023	1,192	[1],[2]
2024	0	[1],[2]
Total contractual obligation	$ 5,936	[1],[2]

[1] For the Company’s lease commitments as of September 30, 2020, refer to Note 9, “Leases.”

[2] The above table does not reflect possible payments in connection with uncertain tax benefits of approximately $26.7 million including $23.6 million recorded as a reduction of long-term deferred tax assets and $3.1 million in long-term income taxes payable as of September 30, 2020. As noted below in Note 14, “Income Taxes,” although it is possible that some of the unrecognized tax benefits could be settled within the next 12 months, the Company cannot reasonably estimate the outcome at this time.

[3] The Company has commitments with various software vendors for agreements generally having terms longer than one year.

[4] In connection with the acquisition of Northwest Logic in the third quarter of 2019 and the Secure Silicon IP and Protocols business in the fourth quarter of 2019, the Company is obligated to pay retention bonuses to certain employees subject to certain eligibility and acceleration provisions including the condition of employment.