Consolidated Statements of Cash Flows - USD ($)
$ in Millions
3 Months Ended
Mar. 30, 2018
Mar. 31, 2017
Cash flows from operating activities:    
Net income $ 140.5 $ 78.7
Adjustments to reconcile net income to net cash provided by operating activities and other adjustments:    
Depreciation and amortization 119.9 114.3
Loss on sale or disposal of fixed assets 1.3 2.9
Loss on debt refinancing and prepayment 0.0 26.2
Amortization of debt discount and issuance costs 3.3 4.5
Payments for term debt modification 0.0 (2.4)
Write-down of excess inventories 9.4 14.2
Non-cash share-based compensation expense 18.4 15.1
Non-cash interest on convertible notes 8.7 4.7
Non-cash intangible asset impairment charges 0.0 4.4
Change in deferred taxes 7.5 36.2
Other (1.2) 1.5
Changes in assets and liabilities:    
Receivables (24.4) (45.2)
Inventories (73.3) 4.9
Other assets (1.4) (17.7)
Accounts payable 24.4 9.2
Accrued expenses (9.5) 63.1
Deferred income on sales to distributors 0.0 (107.3)
Other long-term liabilities 2.9 1.2
Net cash provided by operating activities 226.5 208.5
Cash flows from investing activities:    
Purchases of property, plant and equipment (99.5) (52.7)
Proceeds from sales of property, plant and equipment 5.6 0.2
Deposits made for purchases of property, plant and equipment (11.6) (0.2)
Purchase of businesses, net of cash acquired 0.0 (0.8)
Purchases of held-to-maturity securities 0.0 (1.6)
Net cash used in investing activities (105.5) (55.1)
Cash flows from financing activities:    
Proceeds from issuance of common stock under the ESPP 0.0 5.9
Proceeds from exercise of stock options 3.6 7.5
Payments of tax withholding for restricted shares (18.8) (13.0)
Repurchase of common stock 0.0 (25.0)
Proceeds from debt issuance 5.3 689.0
Repayment of long-term debt (135.9) (1,054.4)
Purchase of convertible note hedges 0.0 (144.7)
Proceeds from issuance of warrants 0.0 85.2
Payment of capital lease obligations (1.1) (5.4)
Net cash used in financing activities (146.9) (454.9)
Effect of exchange rate changes on cash, cash equivalents and restricted cash 1.6 2.3
Net decrease in cash, cash equivalents and restricted cash (24.3) (299.2)
Cash, cash equivalents and restricted cash, beginning of period 966.6 1,045.8
Cash, cash equivalents and restricted cash, end of period $ 942.3 $ 746.6