Income Taxes	9 Months Ended
Jul. 03, 2015
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company’s effective tax rate was 22.1% and 26.1% for the three and nine months ended July 3, 2015, compared to 25.5% and 28.1% for the respective year-ago periods of fiscal year 2014. The decrease in the Company’s effective tax rate during the three and nine months ended July 3, 2015 compared to the respective year ago periods, was primarily due to the geographic mix of earnings, including significant Particle Therapy earnings in Germany, a jurisdiction for which the Company has a full valuation allowance, in the third quarter of fiscal year 2015. The Company’s effective income tax rate differs from the U.S. federal statutory rate primarily because the Company’s foreign earnings are taxed at rates that are, on average, lower than the U.S. federal rate, and because the Company’s domestic earnings are subject to state income taxes. The total amount of unrecognized tax benefits did not materially change during the nine months ended July 3, 2015; however, the amount of unrecognized tax benefits has increased as a result of positions taken during the current and prior years, and has decreased as the result of the expiration of the statutes of limitation and audit settlements in various jurisdictions.

Income Taxes

9 Months Ended

Jul. 03, 2015

INCOME TAXES

The Company’s effective tax rate was 22.1% and 26.1% for the three and nine months ended July 3, 2015, compared to 25.5% and 28.1% for the respective year-ago periods of fiscal year 2014. The decrease in the Company’s effective tax rate during the three and nine months ended July 3, 2015 compared to the respective year ago periods, was primarily due to the geographic mix of earnings, including significant Particle Therapy earnings in Germany, a jurisdiction for which the Company has a full valuation allowance, in the third quarter of fiscal year 2015.

The Company’s effective income tax rate differs from the U.S. federal statutory rate primarily because the Company’s foreign earnings are taxed at rates that are, on average, lower than the U.S. federal rate, and because the Company’s domestic earnings are subject to state income taxes.

The total amount of unrecognized tax benefits did not materially change during the nine months ended July 3, 2015; however, the amount of unrecognized tax benefits has increased as a result of positions taken during the current and prior years, and has decreased as the result of the expiration of the statutes of limitation and audit settlements in various jurisdictions.