Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Accumulated Other Comprehensive Income, Net of Related Tax Effects) (Details)

v2.4.1.9
Accumulated Other Comprehensive Income (Accumulated Other Comprehensive Income, Net of Related Tax Effects) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive income at beginning of period $ 35,360us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax $ 46,663us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax $ 46,897us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Other comprehensive income (loss) before reclassifications (17,816)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax (7,263)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax 5,264us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
Amounts reclassified from other comprehensive income (1,711)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax (4,040)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax (5,498)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Net other comprehensive income (loss) during the period (19,527)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent (11,303)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent (234)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
Accumulated other comprehensive income at end of period 15,833us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax 35,360us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax 46,663us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Unrealized Holding Gains (Losses) on Available-For-Sale Securities [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive income at beginning of period (6)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
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(9)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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(2)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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Other comprehensive income (loss) before reclassifications 10us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
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3us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
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(7)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
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Amounts reclassified from other comprehensive income 0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
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0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
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0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
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Net other comprehensive income (loss) during the period 10us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
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= us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember
3us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
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(7)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
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= us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember
Accumulated other comprehensive income at end of period 4us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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= us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember
(6)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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(9)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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Unrealized Holding Gains (Losses) on Derivative Transactions [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive income at beginning of period 1,244us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
2,505us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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7,250us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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Other comprehensive income (loss) before reclassifications 9,462us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
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= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
2,779us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
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= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
753us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
Amounts reclassified from other comprehensive income (1,711)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(4,040)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(5,498)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
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Net other comprehensive income (loss) during the period 7,751us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(1,261)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(4,745)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
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Accumulated other comprehensive income at end of period 8,995us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
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1,244us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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2,505us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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Foreign Currency Translation Adjustment [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive income at beginning of period 34,122us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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44,167us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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39,649us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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Other comprehensive income (loss) before reclassifications (27,288)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
/ us-gaap_StatementEquityComponentsAxis
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(10,045)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
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4,518us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
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= us-gaap_AccumulatedTranslationAdjustmentMember
Amounts reclassified from other comprehensive income 0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
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= us-gaap_AccumulatedTranslationAdjustmentMember
0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
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0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
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Net other comprehensive income (loss) during the period (27,288)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
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(10,045)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
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4,518us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
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Accumulated other comprehensive income at end of period $ 6,834us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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$ 34,122us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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$ 44,167us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
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