XML 17 R6.htm IDEA: XBRL DOCUMENT v3.8.0.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Operating Activities    
Net income $ 38,728 $ 41,956
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation 11,025 9,547
Amortization of bond premiums 39 216
Provision for losses on accounts receivable, net of adjustments 180 30
Provision for excess and obsolete inventories 54 420
Share-based compensation 4,960 3,172
Loss (gain) on disposal of assets 46 (20)
Foreign currency transaction gain (65) (38)
Interest income on note receivable (18) (21)
Deferred 1,147 (1,519)
Changes in assets and liabilities:    
Accounts receivable (14,521) (3,340)
Income taxes 6,239 2,230
Inventories (18,819) (5,322)
Prepaid expenses and other (141) (287)
Accounts payable 3,781 949
Deferred revenue 416 334
Accrued liabilities and donations 8,814 (1,300)
Net cash provided by operating activities 41,865 47,007
Investing Activities    
Capital expenditures (26,436) (23,627)
Proceeds from sale of property, plant and equipment 8 28
Investment in certificates of deposits (5,280) (4,112)
Maturities of certificates of deposits 5,752 9,840
Purchases of investments held to maturity (13,241) (10,384)
Maturities of investments 15,443 5,622
Proceeds from called investments 500 1,511
Principal payments from note receivable 48 39
Net cash used in investing activities (23,206) (21,083)
Financing Activities    
Borrowings under revolving credit facility 0 761
Payments under revolving credit facility 0 (761)
Stock options exercised 1,715 1,681
Repurchase of stock (12,991) (14,572)
Employee taxes paid by withholding shares (1,193) (559)
Payments of Dividends 6,828 5,820
Net cash used in financing activities (19,297) (19,270)
Net (decrease) increase in cash and cash equivalents (638) 6,654
Cash and cash equivalents, beginning of period 24,153 7,908
Cash and cash equivalents, end of period $ 23,515 $ 14,562