Comprehensive Income (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Changes in AOCI balances by component (after-tax) attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	$ (302,673)		$ (257,850)
Other comprehensive income (loss) before reclassifications	22,600		(26,766)
Amounts reclassified from AOCI	3,592		8,135
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	25,789	26,133	(18,981)	34,713
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	(276,481)		(276,481)
Foreign Currency Translation
Changes in AOCI balances by component (after-tax) attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	(10,902)		45,899
Other comprehensive income (loss) before reclassifications	26,471		(30,330)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	26,192	24,168	(30,555)	27,416
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	15,569		15,569
Unrealized Gain (Loss) on Derivative Contracts
Changes in AOCI balances by component (after-tax) attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	(10,801)		(8,960)
Other comprehensive income (loss) before reclassifications	(443)		(2,883)
Amounts reclassified from AOCI	1,582		2,181
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	1,015	412	(827)	2,001
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	(9,662)		(9,662)
Noncontrolling Interests
Changes in AOCI balances by component (after-tax) attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	8,777		8,724
Other comprehensive income (loss) before reclassifications	(403)		(349)
Amounts reclassified from AOCI			(1)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(403)		(350)
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	8,374		8,374
Noncontrolling Interests | Foreign Currency Translation
Changes in AOCI balances by component (after-tax) attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	8,777		8,723
Other comprehensive income (loss) before reclassifications	(279)		(225)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(279)		(225)
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	8,498		8,498
Noncontrolling Interests | Unrealized Gain (Loss) on Derivative Contracts
Changes in AOCI balances by component (after-tax) attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period			1
Other comprehensive income (loss) before reclassifications	(124)		(124)
Amounts reclassified from AOCI			(1)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(124)		(125)
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	$ (124)		$ (124)