Debt and Capital Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Future Minimum Payments under Capital Leases

Approximate future minimum payments under our capital leases as of December 31, 2017 are as follows (in thousands):

2018	$	1,674
2019	1,733
2020	1,792
2021	1,932
2022	1,820
Thereafter (1)	7,539
Total minimum lease payments	16,490
Less: Amount representing interest	(2,770		)
Present value of future minimum lease payments	$	13,720

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(1) Amount includes $6.9 million representing the estimated residual value of the manufacturing facility in Germany at the end of the estimated lease term, which only becomes due and payable at Asahi's option if we terminate our agreement with Asahi.