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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Apr. 01, 2017
Apr. 02, 2016
Operating activities:    
Net income (loss) $ 10,579 $ (10,800)
Adjustments to reconcile net income (loss) to cash provided by operating activities:    
Depreciation and amortization 12,862 12,869
Amortization of deferred financing costs 1,485 1,662
Impairment of intangible and long-lived assets 97 53
Write-off of net assets due to cessation of Spain operations 70 0
Share-based compensation expense 2,334 3,219
Deferred tax provision 4,395 297
Allowance for doubtful accounts (872) (109)
Reserve for inventory obsolescence 2,949 1,600
Foreign currency exchange rate loss (gain) 572 (165)
Changes in cash due to:    
Receivables (1,011) 201
Inventories 4,637 (3,059)
Prepaid expenses (10,131) (2,952)
Accounts payable 3,249 30,210
Accrued liabilities (25,794) (10,432)
Deferred revenue 31,054 19,850
Other long term assets and liabilities, net (38) (365)
Income taxes 5,902 1,254
Cash provided by operating activities 42,339 43,333
Investing activities:    
Capital expenditures (3,411) (1,060)
Capitalized software expenditures (7,071) (7,829)
Other items, net (3) (87)
Cash used for investing activities (10,485) (8,976)
Financing activities:    
Payments on long-term debt (5,250) (149,573)
Taxes paid related to net share settlement of equity awards (1,170) 0
Proceeds from stock options exercised 666 0
Cash used for financing activities (5,754) (149,573)
Effect of exchange rate changes on cash and cash equivalents 437 1,502
Net increase (decrease) in cash and cash equivalents 26,537 (113,714)
Cash and cash equivalents, beginning of period 108,656 241,526
Cash and cash equivalents, end of period $ 135,193 $ 127,812