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LONG-TERM OBLIGATIONS (Details)
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3 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | 0 Months Ended | 1 Months Ended | 3 Months Ended | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2015
USD ($)
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Dec. 31, 2014
USD ($)
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Aug. 13, 2014
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Mar. 31, 2015
Credit Agreement 2014 [Member]
USD ($)
|
Dec. 31, 2014
Credit Agreement 2014 [Member]
USD ($)
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Aug. 13, 2014
Credit Agreement 2014 [Member]
USD ($)
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Mar. 31, 2015
Revolving Credit Facility [Member]
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Aug. 13, 2014
Revolving Credit Facility [Member]
USD ($)
|
Mar. 31, 2015
Term Loan [Member]
USD ($)
factor
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Aug. 13, 2014
Term Loan [Member]
USD ($)
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Mar. 31, 2015
Term Loan Euro [Member]
USD ($)
factor
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Aug. 13, 2014
Term Loan Euro [Member]
EUR (€)
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Mar. 31, 2015
2014 Credit Agreement Additional LC Arrangements [Member]
USD ($)
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Dec. 31, 2014
2014 Credit Agreement Additional LC Arrangements [Member]
USD ($)
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Mar. 31, 2015
Bilateral Arrangements [Member]
USD ($)
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Dec. 31, 2014
Bilateral Arrangements [Member]
USD ($)
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Mar. 31, 2015
6.5% Senior Notes Due April 1, 2020 [Member]
USD ($)
factor
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Mar. 27, 2012
6.5% Senior Notes Due April 1, 2020 [Member]
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Mar. 26, 2012
6.5% Senior Notes Due April 1, 2020 [Member]
USD ($)
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Mar. 31, 2015
Senior Notes Due May 15, 2021 Six Percent [Member]
USD ($)
factor
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Nov. 26, 2012
Senior Notes Due May 15, 2021 Six Percent [Member]
USD ($)
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Nov. 13, 2007
8% Senior Subordinated Notes due November 15, 2017 [Member]
USD ($)
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Jun. 19, 2014
4% Convertible Senior Subordinated Notes due June 1, 2015 [Member]
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Dec. 20, 2013
4% Convertible Senior Subordinated Notes due June 1, 2015 [Member]
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Jun. 03, 2009
4% Convertible Senior Subordinated Notes due June 1, 2015 [Member]
USD ($)
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Aug. 31, 2012
4% Convertible Senior Subordinated Notes due June 1, 2015 [Member]
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Mar. 31, 2015
4% Convertible Senior Subordinated Notes due June 1, 2015 [Member]
USD ($)
factor
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Mar. 31, 2015
Fair Value, Inputs, Level 1 [Member]
Term Loan [Member]
USD ($)
|
Mar. 31, 2015
Fair Value, Inputs, Level 1 [Member]
Term Loan Euro [Member]
USD ($)
|
Mar. 31, 2015
Fair Value, Inputs, Level 1 [Member]
6.5% Senior Notes Due April 1, 2020 [Member]
USD ($)
|
Mar. 31, 2015
Fair Value, Inputs, Level 1 [Member]
Senior Notes Due May 15, 2021 Six Percent [Member]
USD ($)
|
Mar. 31, 2015
Fair Value, Inputs, Level 1 [Member]
4% Convertible Senior Subordinated Notes due June 1, 2015 [Member]
USD ($)
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| Debt Instrument | ||||||||||||||||||||||||||||||||
| Revolving line of credit available borrowing capacity | $ 600,000,000 | $ 600,000,000 | ||||||||||||||||||||||||||||||
| Long-term Line of Credit | 111,000,000 | 230,000,000 | 200,000,000 | |||||||||||||||||||||||||||||
| Springing Covenant Threshold | 30.00% | |||||||||||||||||||||||||||||||
| Debt Instrument Covenant Minimum Interest Coverage Ratio | 2.5 | |||||||||||||||||||||||||||||||
| Debt Instrument Covenant Senior Secured Debt Leverage Ratio Maximum | 2.75 | |||||||||||||||||||||||||||||||
| Long-term Debt | 439,800,000 | 467,900,000 | 227,100,000 | 212,700,000 | 300,000,000 | 300,000,000 | 850,000,000 | 850,000,000 | 800,000,000 | 172,500,000 | 127,300,000 | |||||||||||||||||||||
| Debt, Weighted Average Interest Rate | 3.74% | 3.76% | 3.50% | |||||||||||||||||||||||||||||
| Maximum amount of letters of credit available under the Credit Agreement | 400,000,000 | |||||||||||||||||||||||||||||||
| Letters of Credit Outstanding, Amount | 255,600,000 | 291,900,000 | 0 | 23,300,000 | 30,400,000 | 232,300,000 | 261,500,000 | |||||||||||||||||||||||||
| Letters of Credit Maximum Available under Additional Facilities | 300,000,000 | |||||||||||||||||||||||||||||||
| Percentage of capital stock of foreign subsidiary pledged as collateral for borrowings (as a percent) | 65.00% | |||||||||||||||||||||||||||||||
| Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed | 103.25% | 103.00% | 25.00% | |||||||||||||||||||||||||||||
| Interest rate of debt securities (as a percent) | 6.50% | 6.00% | 8.00% | 4.00% | ||||||||||||||||||||||||||||
| Initial conversion rate of shares per $1000 principal amount of convertible notes (in shares) | 62.1099 | 61.9685 | 61.5385 | |||||||||||||||||||||||||||||
| Debt Instrument Principal Amount Denomination for Conversion Into Common Stock | 1,000 | |||||||||||||||||||||||||||||||
| Conversion price of convertible notes (in dollars per share) | $ 16.25 | |||||||||||||||||||||||||||||||
| Carrying value of the equity component of convertible debt | 54,300,000 | |||||||||||||||||||||||||||||||
| Deferred tax liability on equity component of debt | 19,400,000 | |||||||||||||||||||||||||||||||
| Interest expense on convertible debt | 3,500,000 | |||||||||||||||||||||||||||||||
| Long-Term Debt Maturity Value | 128,800,000 | |||||||||||||||||||||||||||||||
| Common Stock, Dividends, Per Share, Cash Paid | $ 0.06 | |||||||||||||||||||||||||||||||
| Debt Instrument Market Quote | 1.00000 | 1.00500 | 1.04500 | 1.01250 | 1.65440 | |||||||||||||||||||||||||||
| Long-term Debt, Fair Value | $ 227,000,000 | $ 214,000,000 | $ 314,000,000 | $ 861,000,000 | $ 211,000,000 | |||||||||||||||||||||||||||