Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
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Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

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Amount before tax of reclassification adjustments of other comprehensive income (loss).

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Derivatives - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
Derivatives - Narrative (Details) - USD ($)	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Derivative collateral received or pledged	$ 0		$ 0			$ 0
Fair value of outstanding contracts, net gain (loss)	9,000,000		9,000,000
Foreign currency forward contracts \| Derivatives Not Designated as Hedging \| Other long-term liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Combined notional value	293,119,000		293,119,000
Loss on foreign currency exchange \| Foreign currency forward contracts \| Derivatives Not Designated as Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Loss (gain) on derivatives	$ 14,021,000	$ 0	$ 32,184,000	$ 0
Accumulated net gain (loss) from cash flow hedges including portion attributable to non-controlling interest \| Cross currency swaps
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification from AOCI, before tax					$ 5,900,000