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

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Derivative, Variable Interest, Value

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fixed interest rate related to the interest rate derivative.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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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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The number of derivative instruments of a particular group held by the entity.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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Derivative Instruments - Derivatives Not Designated as Hedging Instruments (Details) $ in Thousands		3 Months Ended	6 Months Ended
	Dec. 20, 2013 AUD loan	Mar. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jan. 31, 2014 AUD	Dec. 31, 2010 USD ($) derivative_instrument
Derivative [Line Items]
Fair value of derivative assets			$ 49,171	$ 4,464
Lines of credit \| Term Loan Two \| Syndicated Facility Agreement
Derivative [Line Items]
Borrowing under credit facility \| AUD	AUD 22,500,000
THINK \| Lines of credit \| Term Loan \| Syndicated Facility Agreement
Derivative [Line Items]
Borrowing under credit facility	AUD 45,000,000		34,223
Number of term loans (loan) \| loan	2
Days to enter into interest rate swap (within)	45 days
Required percentage of term loan to be converted to fixed interest rate (at least)	50.00%
THINK \| Lines of credit \| Term Loan One \| Syndicated Facility Agreement
Derivative [Line Items]
Borrowing under credit facility \| AUD	AUD 22,500,000
Derivatives not designated as hedging instruments: \| Contingent redemption features - Series A Preferred Stock
Derivative [Line Items]
Fair value of derivative assets			48,290	4,464
Included in issuance of Series A convertible redeemable Preferred Stock		$ 4,384
Unrealized gain on derivatives			39,442
Derivatives not designated as hedging instruments: \| Cross currency and interest rate swaps
Derivative [Line Items]
Derivative liability, noncurrent			7,663	7,420
Derivatives not designated as hedging instruments: \| Cross currency and interest rate swaps \| Chile
Derivative [Line Items]
Derivative, number of instruments held (derivative instrument) \| derivative_instrument						4
Derivative, notional amount						$ 31,000
Derivative liability, noncurrent			7,663	7,420
Derivatives not designated as hedging instruments: \| Cross Currency Interest Rate Contract, Maturing December 1, 2024 \| Chile
Derivative [Line Items]
Derivative, number of instruments held (derivative instrument) \| derivative_instrument						1
Derivatives not designated as hedging instruments: \| Cross Currency Interest Rate Contract, Maturing July 1, 2025 \| Chile
Derivative [Line Items]
Derivative, number of instruments held (derivative instrument) \| derivative_instrument						3
Derivatives not designated as hedging instruments: \| Interest rate swaps
Derivative [Line Items]
Derivative liability, noncurrent			278	330
Derivatives not designated as hedging instruments: \| Interest rate swaps \| THINK
Derivative [Line Items]
Derivative, notional amount \| AUD					AUD 22,500,000
Derivative liability, noncurrent			278	$ 330
Variable interest converted			$ 17,111		AUD 22,500,000
Derivative, fixed interest rate					3.86%