thereafter, 75% to holders of Class A units and 25% to holders of the IDRs.
There were no IDR payments made by us during the three months ended March 31, 2018 and 2017.
Cash Flow Discussion
We use traditional measures of cash flow, including net cash flows from operating activities, investing activities and financing activities, to evaluate our periodic cash flow results.
Three Months Ended March 31, 2018 Compared to Three Months Ended March 31, 2017
The following table reflects the changes in cash flows for the comparative periods:
Three Months Ended March 31,
Net cash provided by operating activities
Net cash provided by (used in) investing activities
Net cash (used in) provided by financing activities
Net Cash Provided By Operating Activities
Net cash provided by operating activities was $52.1 million for the three months ended March 31, 2018 as compared to $35.2 million in the same period in the prior year. The increase in operating cash flow of $16.9 million was primarily driven by a $41.1 million decrease in cash paid for interest, which was partially offset by a $15.7 million decrease in operating revenues (excluding unrealized losses/gains on commodity contract derivatives, recognition of deferred revenue and amortization of favorable and unfavorable rate revenue contracts, net). The decrease in cash paid for interest was primarily driven by the redemption of our $950.0 million senior notes due 2023 on December 12, 2017, for which interest payments were made semi-annually in February and August of each year, including in February of 2017. On December 12, 2017, the Company issued $1.2 billion of new senior notes, but the first interest payment is not due until July 2018. Significantly higher borrowings outstanding on our corporate-level revolving credit facility during the first quarter of 2017 as compared to the first quarter of 2018 also contributed to higher interest payments in the prior year quarter. The decrease in operating revenues was primarily driven by safety, service and grid maintenance outages at our Raleigh and Bishop Hill facilities and market conditions in Texas in the first quarter of 2018.
Net Cash Provided By (Used In) Investing Activities
Net cash provided by investing activities for the three months ended March 31, 2018 was $1.4 million, which was due to $4.1 million of proceeds received from reimbursable interconnection costs, partially offset by $2.7 million of capital expenditures. Net cash used in investing activities for the three months ended March 31, 2017 consisted of $2.1 million of capital expenditures.
Net Cash (Used In) Provided By Financing Activities
Net cash used in financing activities for the three months ended March 31, 2018 was $24.6 million, which was primarily driven by a dividend payment of $28.0 million and $9.6 million of principal payments on non-recourse long-term debt, partially offset by $10.0 million of net draws on our corporate-level revolving credit facility. Net cash provided by financing activities for the three months ended March 31, 2017 was $59.9 million, which was primarily due to $79.8 million of proceeds received from increasing our Canadian project-level financing and $7.4 million of net cash contributions received from SunEdison, partially offset by $11.9 million of principal payments on non-recourse long-term debt, a $5.0 million corporate-level revolving credit facility payment and $9.7 million of distributions to tax equity partners.
Off-Balance Sheet Arrangements
The Company enters into guarantee arrangements in the normal course of business to facilitate commercial transactions with third parties. See Note 13. Commitments and Contingencies to our unaudited condensed consolidated financial statements included in this Quarterly Report on Form 10-Q for additional discussion, as well as discussion under Recently