XML 62 R5.htm IDEA: XBRL DOCUMENT v2.4.1.9
Condensed Consolidated Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Statement of Comprehensive Income [Abstract]    
Net earnings $ 21,326us-gaap_NetIncomeLoss $ 19,826us-gaap_NetIncomeLoss
Unrealized gains (losses) on securities:    
Net unrealized holding gains (losses) arising during period 9,372us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax 11,002us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
Net unrealized liquidity gains (losses) 61nwli_ChangeInNetUnrealizedGainLossOnInvestmentSecuritiesHavingCreditLossesRecognizedInConsolidatedStatementOfIncomeNetofTax 23nwli_ChangeInNetUnrealizedGainLossOnInvestmentSecuritiesHavingCreditLossesRecognizedInConsolidatedStatementOfIncomeNetofTax
Reclassification adjustment for net amounts included in net earnings (165)us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax (425)us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
Net unrealized gains (losses) on securities 9,268us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent 10,600us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
Foreign currency translation adjustments 41us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax (511)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
Benefit plans:    
Amortization of net prior service cost and net gain (loss) (303)us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax (176)us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax
Other comprehensive income (loss) 9,006us-gaap_OtherComprehensiveIncomeLossNetOfTax 9,913us-gaap_OtherComprehensiveIncomeLossNetOfTax
Comprehensive income (loss) $ 30,332us-gaap_ComprehensiveIncomeNetOfTax $ 29,739us-gaap_ComprehensiveIncomeNetOfTax