COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Summary of Aggregate Future Minimum Payments under Company's Leases

The following table summarizes the aggregate future minimum payments under the Company’s leases: 

	As of December 31, 2018 (in thousands)
2019	$	11,588
2020		11,395
2021		12,558
2022		10,757
2023		10,898
Thereafter		20,524
Total minimum lease payments	$	77,720

Summary of Non-Cancelable Contractual Obligations Arising From Long-term Contractual Arrangements

The following table presents non-cancelable contractual obligations arising from long-term contractual arrangements:

	As of December 31, 2018 (in thousands)
2019	$	182,352
2020		34,000
2021		34,000
2022		42,000
2023		42,000
Thereafter		124,000
Total manufacturing commitments	$	458,352