Commitments and Contingencies Lease Commitments and Other Contractual Obligations The Company leases facilities and certain equipment under operating lease arrangements expiring at various years through fiscal 2022 . As of June 30, 2016 , future minimum payments under non-cancelable operating leases, other obligations, and inventory purchase obligations are as follows: Operating Leases Other Obligations Inventory Purchase Obligations Total (in thousands) 2016 (six months) $ 3,793 $ 3,638 $ 14,880 $ 22,311 2017 6,896 4,813  11,709 2018 6,144 891  7,035 2019 5,829   5,829 2020 6,177   6,177 Thereafter 7,666   7,666 Total minimum payments $ 36,505 $ 9,342 $ 14,880 $ 60,727 On May 6, 2015 , the Company amended a lease arrangement with The Campus Carlsbad, LLC, so that the current Carlsbad office space of approximately 45,000 square feet expanded to include an additional 24,000 square feet of space. The original lease, which had a term of three years and seven months with an original expiration date of November 30, 2019 , was extended to an expiration date of June 30, 2022 . In 2015, the Company completed tenant improvement activities and expanded into this office space. The Company was provided a tenant improvement allowance of approximately $1,543,000 for tenant improvement costs and related fees and expenses. On November 11, 2015 , the Company entered into a real property lease with The Northwestern Mutual Life Insurance Company, a Wisconsin corporation, with respect to the lease of approximately 50,235 square feet of office and laboratory space located at 50 Parker in Irvine, California. The Company relocated its current operations in Irvine, California to the new facility in May 2016. The lease has an initial term of six years and two months, commencing on the later of (i) April 1, 2016 or (i) the date upon which certain building and tenant improvements have been substantially completed and possession of the substantially completed premises has been tendered by the landlord to the Company. The base monthl