CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Operating activities:
Net income	$ 119,447	$ 223,568	$ 163,317
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	45,017	44,061	50,880
Amortization of deferred financing costs and debt discount	9,318	8,539	6,112
Goodwill impairment	0	0	13,323
Impairment of intangible and long-lived assets	307	27	682
Write-off of net assets due to cessation of Spain operations	0	0	70
Share-based compensation expense	20,471	20,188	14,949
Deferred tax benefit	(9,424)	(13,673)	(48,216)
Allowance for doubtful accounts	(123)	130	(587)
Reserve for inventory obsolescence	8,710	7,906	7,823
Foreign currency exchange rate loss	1,235	2,036	202
Early extinguishment of debt, net	0	0	8,969
Changes in cash due to:
Receivables	1,331	(7,999)	5,444
Inventories	(9,127)	(1,148)	(4,504)
Prepaid expenses	13,619	(3,991)	(4,359)
Accounts payable	1,347	2,224	(14,507)
Accrued liabilities	(6,968)	16,600	4,414
Deferred revenue	6,199	(17,198)	8,298
Other long term assets and liabilities, net	(878)	(13,001)	5,683
Income taxes	(18,098)	27,323	4,281
Cash provided by operating activities	182,383	295,592	222,274
Investing activities:
Capital expenditures	(17,159)	(19,050)	(13,732)
Capitalized software expenditures	(30,824)	(27,763)	(26,916)
Cash paid for acquisitions	(4,060)	(7,100)	0
Other items, net	(580)	(10,045)	(143)
Cash used for investing activities	(52,623)	(63,958)	(40,791)
Financing activities:
Net (payments) borrowings on revolver	0	(25,000)	25,000
Proceeds from new long term debt	0	0	1,840,000
Financing costs and debt discount	0	0	(53,636)
Payments on long-term debt	(177,000)	(57,750)	(2,018,773)
Taxes paid related to net share settlement of equity awards	(6,582)	(25,020)	(9,548)
Proceeds from stock options exercised	1,076	33,417	5,475
Other items, net	(487)	0	0
Cash used for financing activities	(182,993)	(74,353)	(211,482)
Effect of exchange rate changes on cash and cash equivalents	(1,005)	(3,361)	4,397
Net (decrease) increase in cash and cash equivalents	(54,238)	153,920	(25,602)
Cash and cash equivalents, beginning of period	236,974	83,054	108,656
Cash and cash equivalents, end of period	$ 182,736	$ 236,974	$ 83,054