Other Non-operating (Income) Expenses, net
Other non-operating expense was $0.2 million and $0.7 million for the nine months ended September 30, 2020 and 2019, respectively.
Income Tax Expense
During the nine months ended September 30, 2020, the Company recognized income tax expense of less than $0.1 million on $24.7 million of loss before income tax, compared to $26.8 million of income tax benefit on $271.1 million of income before income tax during the comparable 2019 period.
Income taxes for the interim periods have been based on an estimated annualized worldwide effective tax rate.
The income tax expense was based on the applicable federal, state and foreign tax rates for those periods. For periods with income before provision for income taxes, favorable tax items result in a decrease in the effective tax rate, while unfavorable tax items result in an increase in the effective tax rate. For periods with a loss before benefit from income taxes, favorable tax items result in an increase in the effective tax rate, while unfavorable tax items result in a decrease in the effective tax rate.
Liquidity and Capital Resources
Our principal sources of liquidity are cash generated from operations and amounts available to be drawn under our Revolving Credit Facility, or Revolver. Our primary uses of cash are to fund operating expenses, product development costs, capital expenditures, interest or principal payments on our debt, as well as strategic business and product acquisitions. During the third quarter of 2020 we prepaid $50 million of term loans.
As of September 30, 2020, we had cash and cash equivalents of $126.1 million and borrowing availability under the Revolver of $50.0 million. We also had $221.4 million aggregate principal amount borrowed under our term loans.
As of September 30, 2020, the interest rate was 4.75% and 5.25% for our Term A Loan and Term B Loan, respectively. As of September 30, 2019, the interest rate was 5.79% and 6.29% for our Term A Loan and Term B Loan, respectively.
At September 30, 2020, there were no outstanding borrowings or outstanding letters of credit under the Revolver.
On January 13, 2020 we completed an equity offering and allotted 6.9 million ordinary shares at a public offering price of $5.00 per share. The number of shares issued in this offering reflected the exercise in full of the underwriters option to purchase 900,000 ordinary shares. The aggregate proceeds from the follow-on offering were approximately $31.8 million after deducting underwriter discounts and commissions and offering expenses. Proceeds from the offering were used for working capital and general corporate purposes.
On July 16, 2020 we completed a follow-on equity offering and allotted 5.0 million ordinary shares. The aggregate proceeds from the follow-on offering were approximately $30.4 million after deducting offering expenses. Proceeds from the offering will be used for working capital and general corporate purposes.
Our non-promoted products, including methylphenidate ER and VERT compete in generic markets for which competition has eroded, and will continue to erode, profitability over time. During 2019 several companies launched competing versions of methylphenidate ER. Additionally, there were three approvals and one launch of competing dosage strengths of VERT during 2019. During the nine month period ended on September 30, 2020, there were two launches of generic VERT, and as of September 30, 2020 there were three approved AB rated generic forms of Lorzone. As a result, we have experienced, and anticipate that we will continue to experience, price erosion negatively affecting profitability of both methylphenidate ER, VERT and Lorzone in 2020 and future years.