Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 29, 2013
Cash flows from operating activities:
Net income (loss)	$ 84.6	$ 23.1	$ 43.7
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	132.7	125.7	113.7
Provision for doubtful accounts	(0.2)	0.1	(0.4)
Amortization of deferred financing costs	1.6	1.3	3.5
Loss on disposition or impairment of assets	(1.1)	9.8	0.0
Deferred income taxes	(8.0)	(21.5)	(9.7)
Valuation allowance on deferred income taxes	13.3	17.6	18.8
Stock based compensation expense	49.8	43.9	35.2
Change in assets and liabilities (net of acquisitions):
Accounts receivable	13.8	5.2	(8.5)
Inventories	11.1	10.3	(2.9)
Other current assets	(2.5)	9.2	(2.2)
Other assets	(7.6)	(1.8)	2.4
Accounts payable	(2.9)	(5.5)	(6.4)
Accrued liabilities	(12.9)	(13.5)	(17.2)
Other long-term liabilities	(2.4)	2.8	(5.0)
Net cash provided by operating activities	269.3	206.7	165.0
Cash flows from investing activities:
Purchases of property and equipment	(44.1)	(39.4)	(37.3)
Proceeds from the divestiture or sale of assets	0.6	41.0	0.0
Proceeds from the sale of investment	4.2	0.0	0.0
Payments for acquisitions, net of cash acquired	(363.9)	(337.6)	0.0
Net cash used in investing activities	(403.2)	(336.0)	(37.3)
Cash flows from financing activities:
Repayments of credit facility	(142.7)	(178.0)	(100.0)
Credit facility issuance costs	(8.7)	(1.5)	(0.6)
Proceeds from credit facility	425.0	289.5	277.5
Extinguishment of debt	0.0	(89.5)	(277.5)
Payments for Repurchase of Common Stock	(75.0)	0.0	0.0
Settlement to terminate capital lease	0.0	(3.0)	0.0
Stock settled tax withholdings	18.1	1.5	0.9
Exercise proceeds from stock awards	47.6	19.1	25.9
Net cash (used in) provided by financing activities	228.1	35.1	(75.6)
Net increase (decrease) in cash and cash equivalents	94.2	(94.2)	52.1
Cash and cash equivalents at beginning of year	162.2	256.4	204.3
Cash and cash equivalents at end of year	256.4	162.2	256.4
Supplemental disclosure of cash flow information Cash paid during the year for:
Interest	27.4	29.2	30.9
Income taxes	$ 3.3	$ 3.9	$ 2.8