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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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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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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

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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 liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

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Amount borrowed under the credit facility as of the balance sheet date.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

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Fair value of the amount outstanding under the credit facility.

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-Publisher FASB

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-Topic 825

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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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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Fair Values of Financial Instruments Schedule of Fair Values of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 122,047	$ 136,411	$ 91,474	$ 133,086
USD Denominated Term Loan [Member]
Liabilities
USD denominated term loan	264,375	277,500
Reported Value Measurement [Member]
Assets
Cash and cash equivalents	122,047	136,411
Foreign exchange forwards	50	146
Liabilities
Interest rate swaps	2,229	2,725
Foreign exchange forwards	69	114
Reported Value Measurement [Member] \| USD Denominated Term Loan [Member]
Liabilities
USD denominated term loan	264,375	277,500
Reported Value Measurement [Member] \| Line of Credit [Member]
Liabilities
Multicurrency revolving line of credit	135,000	140,000
Estimate of Fair Value Measurement [Member]
Assets
Cash and cash equivalents	122,047	136,411
Foreign exchange forwards	50	146
Liabilities
Interest rate swaps	2,229	2,725
Foreign exchange forwards	69	114
Estimate of Fair Value Measurement [Member] \| USD Denominated Term Loan [Member]
Liabilities
Long-term Debt, Fair Value	260,416	275,365
Estimate of Fair Value Measurement [Member] \| Line of Credit [Member]
Liabilities
Line of Credit Facility, Fair Value of Amount Outstanding	$ 132,855	$ 138,751