LONG-TERM OBLIGATIONS (Details)	3 Months Ended		9 Months Ended			55 Months Ended				3 Months Ended			3 Months Ended			3 Months Ended			3 Months Ended						3 Months Ended			3 Months Ended		0 Months Ended	1 Months Ended	9 Months Ended
	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Dec. 31, 2012 USD ($)	Apr. 28, 2017 2011 Credit Agreement [Member]	Sep. 30, 2013 2011 Credit Agreement [Member] USD ($)	Dec. 31, 2012 2011 Credit Agreement [Member] USD ($)	Oct. 12, 2012 2011 Credit Agreement [Member] USD ($)	Jun. 30, 2013 Term Loan [Member] USD ($)	Sep. 30, 2013 Term Loan [Member] USD ($) factor	Aug. 05, 2011 Term Loan [Member] USD ($)	Jun. 30, 2013 Term Loan Euro [Member] EUR (€)	Sep. 30, 2013 Term Loan Euro [Member] USD ($) factor	Aug. 05, 2011 Term Loan Euro [Member] EUR (€)	Sep. 30, 2013 2011 Credit Agreement - revolving credit facility [Member] EUR (€)	Aug. 05, 2011 2011 Credit Agreement - revolving credit facility [Member] USD ($)	Aug. 05, 2011 2011 Credit Agreement - domestic revolving line of credit [Member] USD ($)	Sep. 30, 2013 2011 Credit Agreement - multicurrency revolving line of credit [Member] EUR (€)	Aug. 05, 2011 2011 Credit Agreement - multicurrency revolving line of credit [Member] USD ($)	Sep. 30, 2013 2011 Credit Agreement Additional Arrangements [Member] USD ($)	Dec. 31, 2012 2011 Credit Agreement Additional Arrangements [Member] USD ($)	Sep. 30, 2013 Bilateral Arrangements [Member] USD ($)	Dec. 31, 2012 Bilateral Arrangements [Member] USD ($)	Sep. 30, 2013 6.5% Senior Notes Due April 1, 2020 [Member] USD ($) factor	Mar. 27, 2012 6.5% Senior Notes Due April 1, 2020 [Member]	Mar. 26, 2012 6.5% Senior Notes Due April 1, 2020 [Member] USD ($)	Sep. 30, 2013 Senior Notes Due May 15, 2021 Six Percent [Member] USD ($) factor	Nov. 26, 2012 Senior Notes Due May 15, 2021 Six Percent [Member] USD ($)	Jun. 03, 2009 4% Convertible Senior Subordinated Notes due June 1, 2015 [Member] USD ($)	Aug. 31, 2012 4% Convertible Senior Subordinated Notes due June 1, 2015 [Member]	Sep. 30, 2013 4% Convertible Senior Subordinated Notes due June 1, 2015 [Member] USD ($) factor	Jun. 01, 2015 4% Convertible Senior Subordinated Notes due June 1, 2015 [Member] USD ($)	Nov. 13, 2007 8% Senior Subordinated Notes due November 15, 2017 [Member] USD ($)
Debt Instrument
Line of Credit Facility, Amount Borrowed												$ 460,100,000			€ 200,000,000
Revolving line of credit available borrowing capacity																	500,000,000	250,000,000		250,000,000
Debt Instrument Covenant Minimum Interest Coverage Ratio						2.5
Debt Instrument Covenant Senior Secured Debt Leverage Ratio Maximum						2.5
Repayments of Debt			503,500,000	654,500,000						110,000,000			83,500,000			135,000,000
Loss on early extinguishment of debt	0	(49,900,000)	(5,200,000)	(52,300,000)
Proceeds from Issuance of Debt			(293,600,000)	(339,000,000)															(170,000,000)
Long-term Debt							493,800,000	710,100,000			341,100,000			200,100,000											300,000,000			850,000,000	850,000,000			114,700,000
Line of Credit Facility, Amount Outstanding																35,000,000
Maximum amount of letters of credit available under the Credit Agreement									300,000,000
Letters of Credit Outstanding, Amount	299,300,000		299,300,000		324,000,000		57,000,000	45,400,000													3,100,000	3,100,000	239,200,000	275,500,000
Letters of Credit Maximum Available under Additional Facilities									200,000,000
Percentage of capital stock of foreign subsidiary pledged as collateral for borrowings (as a percent)							65.00%
Principal of debt issued																											300,000,000			172,500,000
Interest rate of debt securities (as a percent)																										6.50%			6.00%	4.00%				8.00%
Subordinated Debt																																		800,000,000
Convertible Subordinated Debt																																114,700,000	128,800,000
Initial redemption price of debt instrument as a percentage of the principal amount (as a percent)																									103.25%			103.00%
Initial conversion rate of shares per $1000 principal amount of convertible notes (in shares)																														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		$ 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
ExtinguishmentOfDebtAmountPercentage																															25.00%
Interest expense on convertible debt																																9,400,000
Debt Instrument Market Quote											1.00500			1.00750											1.05250			1.01500				2.12125
Long-term Debt, Fair Value											$ 343,000,000			$ 202,000,000											$ 316,000,000			$ 863,000,000				$ 243,000,000