Commitments and contingencies (Tables)

3 Months Ended

Mar. 31, 2018

Commitments and contingencies

Summary of contractual obligations as of payment due date

The following table summarizes the Company’s significant contractual obligations as of payment due date by period at March 31, 2018:

	Total Minimum
	Lease Payments
	(in thousands)
2018 (remainder of year)		3,160
2019		4,325
2020		4,731
2021		4,863
2022		5,001
2023+		10,427
	$	32,507

Allocable arrangement consideration allocation

Performance Obligation	Amount
	(in thousands)
Research and Development Services for:
Huntington’s Program	$	14,228
Parkinson’s Program		6,040
Friedreich’s Ataxia Program		14,821
Spinal Muscular Atrophy Program		29,116
Future Program		2,239
Committee Obligations:
AJSC		133
DAC		207
PD Material Right		7,855
Total	$	74,639

Schedule of allocation of transaction price

Performance Obligation	Amount
	(in thousands)
Research Services	$	34,482
First Development Option Material Right		34,518
Total	$	69,000