The facility backs up commercial paper and credit line borrowings. As a result of the long-term nature of this facility, our commercial paper and credit line borrowings, as well as drawings under the facility, are classified as long-term debt. At September 30, 2019, we had available borrowing capacity of $300.7 million under this facility. We believe the combination of available borrowing capacity and operating cash flows will provide sufficient funds to finance our existing operations for the foreseeable future.
Our total debt increased $97.8 million from $221.4 million at December 31, 2018 to $319.2 million at September 30, 2019 to fund the acquisition of Water-Right. Our leverage, as measured by the ratio of total debt to total capitalization, calculated excluding operating lease liabilities, was 16.2 percent at the end of the third quarter in 2019, compared with 11.4 percent at the end of last year.
Our pension plan continues to meet all funding requirements under ERISA regulations. We are not required to make a contribution and we do not plan to make any voluntary contributions to the plan in 2019.
In December 2018 and in June 2019, our Board of Directors approved adding 5 million shares and 3 million shares, respectively, of common stock to an existing discretionary share repurchase authority. Under the share repurchase program, our common stock may be purchased through a combination of a Rule
10b5-1
automatic trading plan and discretionary purchases in accordance with applicable securities laws. The stock repurchase authorization remains effective until terminated by our Board of Directors, which may occur at any time, subject to the parameters of any Rule
10b5-1
automatic trading plan that we may then have in effect. During the first nine months of 2019, we repurchased 4,921,538 shares of our stock at a total cost of $230.0 million. At September 30, 2019, we had 4,153,715 shares remaining on the board share repurchase authority. Depending on factors such as stock price, working capital requirements and alternative investment opportunities, we expect to spend approximately $300 million on stock repurchases in 2019 through a combination of our Rule
10b5-1
automatic trading plan and opportunistic repurchases in the open market.
On October 10, 2019, our Board of Directors increased the rate of our quarterly cash dividend to $0.24 per share on our Common Stock and Class A common stock, representing an increase of nine percent. The five-year compound annual growth rate of our quarterly dividend rate is more than 24 percent. The dividend is payable on November 15, 2019 to shareholders of record on October 31, 2019.
Non-GAAP
Financial Information
We provide
non-GAAP
measures (adjusted earnings, adjusted earnings per share (EPS) and adjusted segment earnings) that exclude restructuring and impairment expenses in 2018.
We believe that the measures of adjusted earnings, adjusted EPS and adjusted segment earnings provide useful information to investors about our performance and allow management and our investors to better compare our performance period over period.