Income Tax	3 Months Ended
Mar. 31, 2016
Income Tax [Abstract]
Income Tax	Note 9 – Income Tax The provision for income taxes is different from the amount determined by applying the U.S. federal statutory rate to consolidated income before taxes. The significant differences arise from the difference in foreign tax rates from U.S. tax rates, earnings considered indefinitely reinvested in foreign operations, state taxes, unrecognized tax benefits, and foreign withholding tax on interest. Our effective tax rate was 33.9 % and 44.9 % for the three months ended March 31, 2016 and 2015, respectively. The decrease was substantially caused by the reversal in the second quarter of 2015 of our assertion that earnings of Australia subsidiaries are not indefinitely invested in foreign operations.

Income Tax

3 Months Ended

Mar. 31, 2016

Note 9 – Income Tax

The provision for income taxes is different from the amount determined by applying the U.S. federal statutory rate to consolidated income before taxes. The significant differences arise from the difference in foreign tax rates from U.S. tax rates, earnings considered indefinitely reinvested in foreign operations, state taxes, unrecognized tax benefits, and foreign withholding tax on interest. Our effective tax rate was 33.9 % and 44.9 % for the three months ended March 31, 2016 and 2015, respectively. The decrease was substantially caused by the reversal in the second quarter of 2015 of our assertion that earnings of Australia subsidiaries are not indefinitely invested in foreign operations.