Note 13  Commitments and Contingencies Future Minimum Lease Payments The Company entered into lease agreements related to certain acquisitions under leasehold interest arrangements. The following table reflects the minimum contractual base cash payments, excluding reimbursements, due from the Company over the next five years and thereafter under these arrangements. These amounts exclude contingent rent payments, as applicable, that may be payable based on provisions related to increases in annual rent based on exceeding certain economic indexes, among other items. Future Minimum Base Rent Payments (In thousands) Ground Leases 2018 $ 5,175 2019 5,432 2020 5,432 2021 5,633 2022 5,914 Thereafter 238,138 Total minimum lease payments $ 265,724 As of December 31, 2017, future minimum base rent payments related to the ground leases accrued until the projected disposal of the related properties amounted to $2.5 million and are included in liability for estimated costs in excess of estimated receipts during liquidation. Total rental expense related to operating leases was $7.6 million for the years ended December 31, 2016 and 2015. During the years ended December 31, 2016 and 2015, interest expense related to capital leases was approximately $0.1 million. The following table discloses assets recorded under capital leases and the accumulated amortization thereon as of December 31, 2016: (In thousands) December 31, 2016 Buildings, fixtures and improvements $ 11,785 Less accumulated depreciation and amortization (2,273 ) Total real estate investments, net $ 9,512 Litigation and Regulatory Matters In the ordinary course of business, the Company may become subject to litigation, claims and regulatory matters. There are no legal or regulatory proceedings pending or known to be contemplated against the Company from which the Company expects to incur a material loss. Harris Derivative Suit In October 2016, Berney Harris (the Plaintiff) filed a derivative complaint (the Harris Complaint) on behalf of the Company against certa