Long-term debt consisted of the following:

NCLC, a subsidiary of NCLH, entered into a Third Amended and Restated Credit Agreement, dated as of October 10, 2017, with a subsidiary of NCLC, as co-borrower and JPMorgan Chase Bank, N.A. (“JPM”), as administrative agent. This facility revised the $750.0 million senior secured credit facility to, among other things, (a) reprice and increase the existing $750 million revolving credit facility to a new $875 million revolving credit facility (the “New Revolving Loan Facility”), (b) reprice the approximately $1,412 million principal amount outstanding under the existing senior secured term A facility to (the “New Term A Loan Facility”), and (c) add a new $375 million term B loan facility due 2021 (the “New Term B Loan Facility”). The applicable margin under the New Term A Loan Facility and New Revolving Loan Facility is determined by reference to a total leverage ratio, with an applicable margin of between 2.00% and 1.25% with respect to Eurocurrency loans and between 1.00% and 0.25% with respect to base rate loans. The margin for borrowings under the New Term A Loan Facility and New Revolving Loan Facility is 1.75% with respect to Eurocurrency borrowings and 0.75% with respect to base rate borrowings. The applicable margin under the New Term B Loan Facility is 1.75% with respect to Eurocurrency loans and 0.75% with respect to base rate loans. NCLC used proceeds from the New Term B Loan Facility and cash on hand for the Redemption (as defined below).

Concurrent with the refinancing of its loan facilities as described above, on October 10, 2017, NCLC completed the redemption of all its outstanding 4.625% Senior Notes due 2020 (“Notes”), at a price including accrued and unpaid interest, of $1,044.41 per $1,000 of outstanding principal amount of Notes so redeemed (the “Redemption”) using the proceeds from the New Term Loan B Facility and cash on hand. No Notes remained outstanding after the redemption.

Interest expense, net for the year ended December 31, 2017 was $267.8 million which included $32.5 million of amortization of deferred financing fees and a $23.9 million loss on extinguishment of debt. Interest expense, net for the year ended December 31, 2016 was $276.9 million which included $34.7 million of amortization of deferred financing fees and a $27.7 million loss on extinguishment of debt. Interest expense, net for the year ended December 31, 2015 was $221.9 million which included $36.7 million of amortization of deferred financing fees and a $12.7 million loss on extinguishment of debt.

Certain of our debt agreements contain covenants that, among other things, require us to maintain a minimum level of liquidity, as well as limit our net funded debt-to-capital ratio, maintain certain other ratios and restrict our ability to pay dividends. Substantially all of our ships and other property and equipment are pledged as collateral for certain of our debt. We believe we were in compliance with our covenants as of December 31, 2017.

The following are scheduled principal repayments on long-term debt including capital lease obligations as of December 31, 2017 for each of the next five years (in thousands):

We had an accrued interest liability of $31.9 million and $32.5 million as of December 31, 2017 and 2016, respectively.