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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Operating activities:
Net income	$ 42,992	$ 109,742
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	22,693	21,774
Amortization of deferred financing costs and debt discount	4,680	4,122
Share-based compensation expense	9,684	9,675
Deferred tax (benefit) provision	(2,294)	752
Allowance for doubtful accounts	(303)	54
Reserve for inventory obsolescence	4,244	8,338
Foreign currency exchange rate loss	527	868
Changes in cash due to:
Receivables	982	(9,650)
Inventories	(8,608)	4,999
Prepaid expenses	26,599	(3,023)
Accounts payable	656	(798)
Accrued liabilities	(20,447)	(1,696)
Deferred revenue	2,920	13,259
Other long term assets and liabilities, net	(2,185)	(4,309)
Income taxes	(2,346)	14,480
Cash provided by operating activities	79,794	168,587
Investing activities:
Capital expenditures	(7,601)	(7,733)
Capitalized software expenditures	(16,208)	(13,118)
Other items, net	120	(9,669)
Cash used for investing activities	(23,689)	(30,520)
Financing activities:
Net payments on revolver	0	(25,000)
Payments on long-term debt	(107,750)	(38,500)
Taxes paid related to net share settlement of equity awards	(4,227)	(11,139)
Proceeds from stock options exercised	326	23,262
Other items, net	(218)	0
Cash used for financing activities	(111,869)	(51,377)
Effect of exchange rate changes on cash and cash equivalents	(565)	(1,989)
Net (decrease) increase in cash and cash equivalents	(56,329)	84,701
Cash and cash equivalents, beginning of period	236,974	83,054
Cash and cash equivalents, end of period	$ 180,645	$ 167,755

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The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Amount of noncash expense for share-based payment arrangement.

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Proceeds from stock options exercised gross.

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Amount of expense related to write-down of receivables to the amount expected to be collected and / or the recovery of doubtful accounts. Includes, but is not limited to, accounts receivable and notes receivable.

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