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Future Minimum Payments Related to Notes, Noncancelable Purchase Agreements and Anticipated Payments Related to One-Time Transition Tax (Detail)) $ in Thousands	Dec. 31, 2020 USD ($)
Commitments And Contingencies Disclosure [Abstract]
2021	$ 4,740
2022	4,875
2023	4,875
2024	4,875
2025	655,078
Thereafter	0
Total future minimum payments related to convertible senior notes	674,443
2021	13,825
2022	9,673
2023	8,705
2024	669
2025	682
Thereafter	1,048
Total future minimum payments related to non cancelable purchase agreements	34,602
2021	2,951
2022	2,952
2023	5,534
2024	7,379
2025	9,223
Thereafter	0
Total anticipated payments related to one-time transition tax	$ 28,039

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Amount of long-term debt payable principal and interest maturing in the next year following the current fiscal year.

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