Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2017

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Payments Required Under Leases

At June 30, 2017, the Company’s future minimum payments required under these leases are as follows:

			Lease Payments
	Operating		to be Received		Net Operating		Capital
	Lease		from Sublease		Lease Payments		Lease		Total
	(in thousands)
2017	$	1,773	$	129	$	1,644	$	4	$	1,648
2018		3,545		257	$	3,288		5	$	3,293
2019		3,545		—	$	3,545		—	$	3,545
2020		3,545		—	$	3,545		—	$	3,545
2021		3,510		—	$	3,510		—	$	3,510
Thereafter		14,666		—	$	14,666		—	$	14,666
Total	$	30,584	$	386	$	30,198		9	$	30,207
Less amount representing interest								—
Present value of minimum lease    payments at June 30, 2017							$	9