CONTRACTUAL OBLIGATIONS
A summary of future obligations as of December 31, 2020 was disclosed in our 2020 Form 10-K. Except as otherwise disclosed in “Note 3 to the Condensed Consolidated Financial Statements” relating to our debt obligations, there were no material changes outside the ordinary course of business.
OFF-BALANCE SHEET ARRANGEMENTS
As of March 31, 2021, we had no material off-balance sheet arrangements that have or are reasonably likely to have a material effect on our financial condition, changes in our financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources.
CRITICAL ACCOUNTING ESTIMATES
Our unaudited condensed consolidated financial statements have been prepared in accordance with GAAP and in conjunction with the rules and regulations of the SEC. The preparation of our unaudited condensed consolidated financial statements requires significant management judgments, assumptions, and estimates about matters that are inherently uncertain. These judgments affect the reported amounts of assets and liabilities and our disclosure of contingent assets and liabilities at the dates of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting periods. With different estimates or assumptions, materially different amounts could be reported in our condensed consolidated financial statements. Additionally, other companies may utilize different estimates that may impact the comparability of our results of operations to those of companies in similar businesses. For a detailed description of our critical accounting estimates, see Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our 2020 Form 10-K. As of March 31, 2021, our critical accounting estimates have not changed from those described in our 2020 Form 10-K.
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Interest Rate Risk
We are exposed to the impact of interest rate changes. Our interest rate risk management objectives are to limit the impact of interest rate changes on earnings and cash flows, and optimize overall borrowing costs. To achieve these objectives, we often plan to borrow on a fixed interest rate basis for longer-term debt and utilize interest rate swap agreements on certain variable interest rate debt in order to limit the effects of changes in interest rates on our results of operations. As of March 31, 2021, our debt instruments consisted of borrowings under our line of credit, term loans and mortgage notes.
Fixed Interest Rate Debt. As of March 31, 2021, our fixed interest rate debt consisted of $209.8 million under our mortgage notes, which included a $49.5 million variable-rate mortgage note that we effectively fixed through the use of an interest rate swap until the designated cash flow hedge expires in July 2021; and $500.0 million of borrowings under our term loans that were effectively fixed through the use of interest rate swaps. In total, our fixed interest rate debt represented 77.5% of our total consolidated debt as of March 31, 2021. Interest rate fluctuations will generally not affect our future earnings or cash flows on our fixed interest rate debt unless such instruments mature or are otherwise terminated. However, interest rate changes could affect the fair value of our fixed interest rate debt. As of March 31, 2021, the fair value and the carrying value of our fixed interest rate debt, excluding the values of any associated hedges, was $707.5 million and $709.8 million, respectively. The fair value estimate of this debt was estimated using a discounted cash flow analysis utilizing rates we would expect to pay for debt of a similar type and remaining maturity if the loans were originated on March 31, 2021. Given we generally expect to hold our fixed interest rate debt instruments to maturity or when they otherwise open up for prepayment at par, and the amounts due under such debt instruments should be limited to the outstanding principal balance and any accrued and unpaid interest at such time, we do not expect that the resulting change in fair value of our fixed interest rate debt instruments due to market fluctuations in interest rates, would have a significant impact on our operating cash flows.
Variable Interest Rate Debt. As of March 31, 2021, our consolidated variable interest rate debt consisted of $54.0 million of borrowings under our line of credit, $25.0 million of borrowings under our term loans and $127.0 million under our mortgage notes, which represented 22.5% of our total consolidated debt. Interest rate changes on the variable portion of our variable-rate debt could impact our future earnings and cash flows, but would not necessarily affect the fair value of such debt. As of March 31, 2021, we were exposed to market risks related to fluctuations in interest rates on $206.0 million of consolidated borrowings. A hypothetical 25 basis points increase in the all-in rate on the outstanding balance of our variable interest rate debt as of March 31, 2021, would increase our annual interest expense by approximately $0.5 million.