Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Operating Lease Commitments

Future minimum payments under the above-described noncancelable operating leases as of March 31, 2018 are as follows (in thousands):

Year Ended December 31,	Operating Lease
2018 (9 months)	$	251
2019	255
2020	255
2021	255
2022	255
Thereafter	680
Total	$	1,951

Schedule of Future Minimum Payments Under Build-to-Suit Lease Obligation

Future minimum payments under build-to-suit lease obligation as of March 31, 2018 are as follows (in thousands):

Year Ended December 31,	Expected Cash Payments Under Build-To-Suit Lease Obligation
2018 (9 months)	$	3,832
2019	5,803
2020	5,979
2021	6,165
2022	6,350
Thereafter	6,535
Total	$	34,664

Schedule of Contractual Obligations by Fiscal Year Maturity

The following is a summary of the Company's non-cancelable purchase commitments and contractual obligations as of March 31, 2018 (in thousands):

	Total		2018		2019		2020		2021		2022		Thereafter
Purchase Obligations	$	43,405	$	17,616	$	25,789	$	—	$	—	$	—	$	—
Contractual obligations under license agreements (1)	1,725		435		230		100		100		85		775
Total	$	45,130	$	18,051	$	26,019	$	100	$	100	$	85	$	775

⁽¹⁾ Excludes future obligations pursuant to the cost-sharing arrangement under the Company's License Agreement with Roche. Amounts of such obligations, if any, cannot be determined at this time.