4. Supplemental disclosures

During the three months ended December 31, 2014 and 2013, we made income tax payments of $5.9 million and $6.5 million, respectively.

At December 31, 2014, we held cash and cash equivalents of $149.2 million. Approximately 30% of these funds are denominated and held in jurisdictions outside the United States and we have no requirement or intent at this time to transfer the funds to the United States. Declines in the value of foreign currencies with respect to the United States Dollar, notably the Australian Dollar and British Pound, resulted in a decline in net assets of $10.5 million in the three months ended December 31, 2014, including a $3.6 million decline in our cash and cash equivalents balance and a $4.2 million decline in our goodwill balance. These declines were recorded as losses in our statement of comprehensive income.

Our deferred compensation plan assets include $9.5 million invested in mutual funds which have quoted prices in active markets. These assets are recorded at fair value with changes in fair value being recorded in the statement of operations. The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and other amounts included within current assets and liabilities that meet the definition of a financial instrument are shown at values equivalent to fair value due to the short-term nature of these items. Our accounts receivable balance includes both amounts invoiced and those where amounts are ready to be invoiced and the funds are collectable within standard invoice terms.