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v2.4.1.9

Variation of Provision for Income Taxes from Statutory U.S. Federal Income Tax Rate (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Income Tax Disclosure [Abstract] |  |  |
Statutory Tax Rate | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate |  |
Income taxes computed at the statutory U.S. federal income tax rate | $ 99,597 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | $ 89,151 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | $ 78,325 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State income taxes, net of federal tax benefit | 8,165 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 7,775 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 5,978 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Tax liabilities required (no longer required) | 815 us-gaap_IncomeTaxReconciliationTaxContingencies | (17,043)us-gaap_IncomeTaxReconciliationTaxContingencies | (182)us-gaap_IncomeTaxReconciliationTaxContingencies
Valuation allowance | (3,747)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | (5,087)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 239 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Manufacturing exemption | (5,798)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities | (7,452)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities | (6,865)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities
Tax credit refunds, net | (2,163)us-gaap_IncomeTaxReconciliationTaxCredits | (1,797)us-gaap_IncomeTaxReconciliationTaxCredits | (1,066)us-gaap_IncomeTaxReconciliationTaxCredits
Foreign earnings taxed at other than 35% | 5,957 us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | (600)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | (566)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
Deferred tax rate changes | (1,327)us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate | 2,235 us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate | (3,422)us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate
Other | 662 us-gaap_IncomeTaxReconciliationOtherAdjustments | 2,123 us-gaap_IncomeTaxReconciliationOtherAdjustments | 0 us-gaap_IncomeTaxReconciliationOtherAdjustments
Provision for income taxes | $ 102,161 us-gaap_IncomeTaxExpenseBenefit | $ 69,305 us-gaap_IncomeTaxExpenseBenefit | $ 72,441 us-gaap_IncomeTaxExpenseBenefit
Effective tax rate | 35.90%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 27.20%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 32.40%us-gaap_EffectiveIncomeTaxRateContinuingOperations

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1 -Article 4 + Details
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