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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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No definition available.

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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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Fair value as of the balance sheet date of all foreign currency derivative assets not designated as hedging instruments.

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Fair value as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments.

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Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

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Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

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No definition available.

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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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Fair value of the amount outstanding under the credit facility.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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No definition available.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Fair Values of Financial Instruments Schedule of Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 22, 2017	Jan. 01, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 176,274			$ 133,565	$ 131,018
Restricted Cash			$ 310,300
Liabilities
Senior Notes		$ 300,000
Line of Credit [Member]
Liabilities
Multicurrency revolving line of credit	125,414			97,167
Reported Value Measurement [Member]
Assets
Foreign exchange forward contracts	41			169
Cash and cash equivalents	176,274			133,565
Restricted Cash	311,061			0
Liabilities
Senior Notes	300,000			0
Interest rate swaps, at fair value	0			934
Foreign exchange forwards, liability, at fair value	289			449
Reported Value Measurement [Member] \| Line of Credit [Member]
Liabilities
Multicurrency revolving line of credit	125,414			97,167
Reported Value Measurement [Member] \| USD Denominated Term Loan [Member]
Liabilities
Term loans	194,063			208,125
Estimate of Fair Value Measurement [Member]
Assets
Foreign exchange forward contracts	41			169
Cash and cash equivalents, at fair value	176,274			133,565
Restricted Cash	311,061			0
Liabilities
Senior Notes	301,125			0
Interest rate swaps, at fair value	0			934
Foreign exchange forwards, liability, at fair value	289			449
Estimate of Fair Value Measurement [Member] \| Line of Credit [Member]
Liabilities
Multicurrency revolving line of credit, Fair Value of Amount Outstanding	124,100			95,906
Estimate of Fair Value Measurement [Member] \| USD Denominated Term Loan [Member]
Liabilities
Term loans, at fair value	192,295			205,676
Interest Rate Swap [Member] \| Reported Value Measurement [Member]
Assets
Derivative Asset, Noncurrent	2,370			1,830
Interest Rate Swap [Member] \| Estimate of Fair Value Measurement [Member]
Assets
Interest Rate Derivative Assets, at Fair Value	2,370			1,830
Interest Rate Cap [Member] \| Reported Value Measurement [Member]
Assets
Derivative Asset, Noncurrent	489			946
Interest Rate Cap [Member] \| Estimate of Fair Value Measurement [Member]
Assets
Interest Rate Derivative Assets, at Fair Value	$ 489			$ 946