Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 03, 2014
Cash flows from operating activities:
Net income	$ 120.7	$ 213.9	$ 218.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	36.7	33.1	26.7
Amortization expense	162.4	158.5	162.8
Provision for doubtful accounts	1.9	3.8	1.9
Deferred income taxes	0.9	(1.7)	(15.0)
Stock-based compensation	50.1	43.4	36.5
Income from equity method investments	(17.9)	(12.4)	(20.7)
Gain on an equity sale	0.0	(15.1)	0.0
Acquisition / divestiture (gain)/loss	(3.9)	2.9	1.4
Excess tax benefit for stock-based compensation	(2.1)	(14.1)	(13.5)
Provision for excess and obsolete inventories	12.3	4.8	3.2
Other non-cash items	10.0	4.7	(0.7)
Add decrease (increase) in assets:
Accounts receivable	0.3	(10.9)	(4.1)
Other receivables	8.5	(2.3)	2.3
Inventories	(2.9)	(31.8)	(11.4)
Other current and non-current assets	(7.6)	(7.1)	(11.8)
Add increase (decrease) in liabilities:
Accounts payable	(6.4)	(7.2)	(15.8)
Accrued compensation and benefits	(0.1)	0.5	4.1
Deferred revenue	28.1	45.9	29.4
Accrued warranty	(2.0)	3.1	0.7
Accrued liabilities	(34.1)	(4.9)	20.4
Net cash provided by operating activities	354.9	407.1	414.6
Cash flows from investing activities:
Acquisitions of businesses, net of cash acquired	(156.3)	(307.9)	(258.8)
Acquisitions of property and equipment	(43.9)	(47.3)	(70.9)
Acquisitions of intangible assets	(0.1)	(7.6)	(0.2)
Purchases of equity method investments	(5.5)	(10.9)
Proceeds from Sale of Equity Method Investments			2.4
Net proceeds from sale of business	12.1	0.0	0.0
Dividends received from equity method investments	20.0	32.2	7.7
Other	1.3	(2.5)	(5.0)
Net cash used in investing activities	(172.4)	(344.0)	(324.8)
Cash flows from financing activities:
Issuance of common stock, net of tax withholdings	29.7	56.1	47.7
Repurchase and retirement of common stock	(234.4)	(97.8)	0.0
Excess tax benefit for stock-based compensation	2.1	14.1	13.5
Proceeds from debt and revolving credit lines	555.0	876.2	407.7
Payments on debt and revolving credit lines	(555.2)	(900.1)	(567.3)
Net cash used in financing activities	(202.8)	(51.5)	(98.4)
Effect of exchange rate changes on cash and cash equivalents	(11.7)	(10.8)	(2.0)
Net increase (decrease) in cash and cash equivalents	(32.0)	0.8	(10.6)
Cash and cash equivalents, beginning of fiscal year	148.0	147.2	157.8
Cash and cash equivalents, end of fiscal year	$ 116.0	$ 148.0	$ 147.2