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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Cash flows from operating activities: |  |
Net income | $ 14,836 us-gaap_ProfitLoss | $ 7,906 us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization | 15,428 us-gaap_DepreciationDepletionAndAmortization | 9,264 us-gaap_DepreciationDepletionAndAmortization
Stock-based compensation expense | 2,525 us-gaap_ShareBasedCompensation | 1,574 us-gaap_ShareBasedCompensation
(Increase) decrease in deferred taxes | (7,605)us-gaap_IncreaseDecreaseInDeferredIncomeTaxes | 90 us-gaap_IncreaseDecreaseInDeferredIncomeTaxes
Gain on sale of assets | (31)us-gaap_GainsLossesOnSalesOfAssets | (598)us-gaap_GainsLossesOnSalesOfAssets
Unrealized gain on investments | 0 us-gaap_UnrealizedGainLossOnInvestments | (700)us-gaap_UnrealizedGainLossOnInvestments
Changes in working capital items | (12,704)us-gaap_IncreaseDecreaseInOperatingCapital | (7,554)us-gaap_IncreaseDecreaseInOperatingCapital
(Increase) decrease in other assets | (98)us-gaap_IncreaseDecreaseInOtherOperatingAssets | 2,645 us-gaap_IncreaseDecreaseInOtherOperatingAssets
Decrease in other liabilities | (1,395)us-gaap_IncreaseDecreaseInOtherOperatingLiabilities | (3,524)us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
Increase in pension and postretirement benefits | 1,945 us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations | 2,318 us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations
Other, net | (3,609)us-gaap_OtherOperatingActivitiesCashFlowStatement | 851 us-gaap_OtherOperatingActivitiesCashFlowStatement
Net cash provided by operating activities | 9,292 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 12,272 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Cash flows from investing activities: |  |
Capital expenditures | (9,268)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (4,569)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Proceeds from sale of assets | 629 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 12 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Proceeds from sale of subsidiary | 10,418 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Net cash provided by (used in) investing activities | 1,779 us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (4,557)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
Cash flows from financing activities: |  |
Proceeds from long-term debt | 10,928 us-gaap_ProceedsFromIssuanceOfLongTermDebt | 7,683 us-gaap_ProceedsFromIssuanceOfLongTermDebt
Payments on long-term debt | (17,925)us-gaap_RepaymentsOfLongTermDebt | (6,263)us-gaap_RepaymentsOfLongTermDebt
Proceeds from the sale of treasury stock | 3,727 us-gaap_ProceedsFromSaleOfTreasuryStock | 1,655 us-gaap_ProceedsFromSaleOfTreasuryStock
Purchases of treasury stock | (8,016)us-gaap_PaymentsForRepurchaseOfCommonStock | (3,995)us-gaap_PaymentsForRepurchaseOfCommonStock
Dividends | (4,302)us-gaap_PaymentsOfDividendsCommonStock | (3,026)us-gaap_PaymentsOfDividendsCommonStock
Net cash used in financing activities | (15,588)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | (3,946)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
Effect of exchange rate changes on cash | (1,603)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 137 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Net change in cash and cash equivalents | $ (6,120)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | $ 3,906 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease

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