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CONSOLIDATED STATEMENTS OF Cash Flows (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net earnings | $ 62,860 us-gaap_ProfitLoss | $ 60,849 us-gaap_ProfitLoss | $ 52,004 us-gaap_ProfitLoss
Adjustments to reconcile net earnings to net cash used in operating activities: |  |  |
Depreciation and amortization | 20,758 us-gaap_DepreciationDepletionAndAmortization | 20,050 us-gaap_DepreciationDepletionAndAmortization | 19,925 us-gaap_DepreciationDepletionAndAmortization
Loss on step acquisition | 529 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementLoss |  |
Impairment of equity method investment |  | 975 us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment | 850 us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment
Loss from equity method investment |  | 967 us-gaap_IncomeLossFromEquityMethodInvestments | 1,019 us-gaap_IncomeLossFromEquityMethodInvestments
Amortization of marketable security premiums | 3,261 us-gaap_InvestmentIncomeNetAmortizationOfDiscountAndPremium | 3,035 us-gaap_InvestmentIncomeNetAmortizationOfDiscountAndPremium | 1,770 us-gaap_InvestmentIncomeNetAmortizationOfDiscountAndPremium
Changes in operating assets and liabilities: |  |  |
Accounts receivable | (2,007)us-gaap_IncreaseDecreaseInAccountsReceivable | 1,330 us-gaap_IncreaseDecreaseInAccountsReceivable | 272 us-gaap_IncreaseDecreaseInAccountsReceivable
Other receivables | 1,289 us-gaap_IncreaseDecreaseInOtherReceivables | 253 us-gaap_IncreaseDecreaseInOtherReceivables | (2,720)us-gaap_IncreaseDecreaseInOtherReceivables
Inventories | (7,329)us-gaap_IncreaseDecreaseInInventories | 503 us-gaap_IncreaseDecreaseInInventories | 9,588 us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets | 9,524 us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 14,922 us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 11,295 us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Accounts payable and accrued liabilities | (1,268)us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities | 418 us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities | 199 us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
Income taxes payable and deferred | (1,024)us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable | 68 us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable | 1,369 us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable
Postretirement health care and life insurance benefits | (1,289)us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities | 2,861 us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities | 2,829 us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities
Deferred compensation and other liabilities | 3,465 tr_IncreaseDecreaseInDeferredCompensationAndOtherLiabilities | 3,592 tr_IncreaseDecreaseInDeferredCompensationAndOtherLiabilities | 3,018 tr_IncreaseDecreaseInDeferredCompensationAndOtherLiabilities
Net cash from operating activities | 88,769 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 109,823 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 101,418 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Net cash acquired in step acquisition | 161 us-gaap_CashAcquiredFromAcquisition |  |
Restricted cash | 224 us-gaap_IncreaseDecreaseInRestrictedCash |  |
Capital expenditures | (10,704)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (15,752)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (8,886)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Net sales (purchases) of trading securities | (3,567)tr_PaymentsForProceedsFromTradingSecuritiesInvestingActivities | (5,500)tr_PaymentsForProceedsFromTradingSecuritiesInvestingActivities | (2,994)tr_PaymentsForProceedsFromTradingSecuritiesInvestingActivities
Purchase of available for sale securities | (54,882)us-gaap_PaymentsToAcquireAvailableForSaleSecurities | (66,324)us-gaap_PaymentsToAcquireAvailableForSaleSecurities | (39,016)us-gaap_PaymentsToAcquireAvailableForSaleSecurities
Sale and maturity of available for sale securities | 38,309 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities | 39,613 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities | 10,461 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
Net cash used in investing activities | (30,459)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (47,963)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (40,435)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Shares purchased and retired | (25,020)us-gaap_PaymentsForRepurchaseOfCommonStock | (23,143)us-gaap_PaymentsForRepurchaseOfCommonStock | (23,803)us-gaap_PaymentsForRepurchaseOfCommonStock
Dividends paid in cash | (19,241)us-gaap_PaymentsOfDividendsCommonStock | (14,282)us-gaap_PaymentsOfDividendsCommonStock | (52,431)us-gaap_PaymentsOfDividendsCommonStock
Repayment of bank loans | (403)us-gaap_RepaymentsOfBankDebt |  |
Net cash used in financing activities | (44,664)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | (37,425)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | (76,234)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
Effect of exchange rate changes on cash | (1,821)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | (14)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 501 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Increase (decrease) in cash and cash equivalents | 11,825 us-gaap_NetCashProvidedByUsedInContinuingOperations | 24,421 us-gaap_NetCashProvidedByUsedInContinuingOperations | (14,750)us-gaap_NetCashProvidedByUsedInContinuingOperations
Cash and cash equivalents at beginning of year | 88,283 us-gaap_CashAndCashEquivalentsAtCarryingValue | 63,862 us-gaap_CashAndCashEquivalentsAtCarryingValue | 78,612 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents at end of quarter | 100,108 us-gaap_CashAndCashEquivalentsAtCarryingValue | 88,283 us-gaap_CashAndCashEquivalentsAtCarryingValue | 63,862 us-gaap_CashAndCashEquivalentsAtCarryingValue
Supplemental cash flow information: |  |  |
Income taxes paid, net | 26,599 us-gaap_IncomeTaxesPaidNet | 24,225 us-gaap_IncomeTaxesPaidNet | 21,312 us-gaap_IncomeTaxesPaidNet
Interest paid | 34 us-gaap_InterestPaidNet | 21 us-gaap_InterestPaidNet | 31 us-gaap_InterestPaidNet
Stock dividend issued | $ 52,165 us-gaap_StockIssued1 | $ 48,925 us-gaap_StockIssued1 | $ 38,236 us-gaap_StockIssued1

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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
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- Definition The cash outflow to settle a bank borrowing during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The fair value of stock issued in noncash financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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