Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidating Financial Information - Condensed Consolidating Statements of Comprehensive Income (Loss) (Details)

v2.4.1.9
Condensed Consolidating Financial Information - Condensed Consolidating Statements of Comprehensive Income (Loss) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Condensed Financial Statements, Captions [Line Items]    
Net income $ 25,519us-gaap_NetIncomeLoss $ 82,558us-gaap_NetIncomeLoss
Foreign currency translation adjustment (14,984)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent (7,278)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
Other comprehensive loss (14,984)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent (7,278)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
Comprehensive income 10,535us-gaap_ComprehensiveIncomeNetOfTax 75,280us-gaap_ComprehensiveIncomeNetOfTax
Parent [Member]    
Condensed Financial Statements, Captions [Line Items]    
Net income 25,519us-gaap_NetIncomeLoss
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
82,558us-gaap_NetIncomeLoss
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Foreign currency translation adjustment (14,984)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(7,278)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Other comprehensive loss (14,984)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(7,278)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Comprehensive income 10,535us-gaap_ComprehensiveIncomeNetOfTax
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
75,280us-gaap_ComprehensiveIncomeNetOfTax
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Guarantors [Member]    
Condensed Financial Statements, Captions [Line Items]    
Net income 216us-gaap_NetIncomeLoss
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
(128)us-gaap_NetIncomeLoss
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
Foreign currency translation adjustment 0us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
Other comprehensive loss 0us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
Comprehensive income 216us-gaap_ComprehensiveIncomeNetOfTax
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
(128)us-gaap_ComprehensiveIncomeNetOfTax
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
Non-Guarantor [Member]    
Condensed Financial Statements, Captions [Line Items]    
Net income (4,144)us-gaap_NetIncomeLoss
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
(1,997)us-gaap_NetIncomeLoss
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
Foreign currency translation adjustment (14,984)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
(7,278)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
Other comprehensive loss (14,984)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
(7,278)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
Comprehensive income (19,128)us-gaap_ComprehensiveIncomeNetOfTax
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
(9,275)us-gaap_ComprehensiveIncomeNetOfTax
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
Eliminations [Member]    
Condensed Financial Statements, Captions [Line Items]    
Net income 3,928us-gaap_NetIncomeLoss
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
2,125us-gaap_NetIncomeLoss
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Foreign currency translation adjustment 14,984us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
7,278us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Other comprehensive loss 14,984us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
7,278us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Comprehensive income $ 18,912us-gaap_ComprehensiveIncomeNetOfTax
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
$ 9,403us-gaap_ComprehensiveIncomeNetOfTax
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember