Condensed Consolidating Financial Information Condensed Consolidating Financial Information (Cash Flow) (Details) In Thousands, unless otherwise specified	12 Months Ended					12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2013 EUR (€)	Dec. 31, 2011 USD ($)	Dec. 31, 2014 Consolidation, Eliminations [Member] USD ($)	Dec. 31, 2013 Consolidation, Eliminations [Member] USD ($)	Dec. 31, 2014 Parent Company [Member] USD ($)	Dec. 31, 2013 Parent Company [Member] USD ($)	Dec. 31, 2014 Guarantor Subsidiaries [Member] USD ($)	Dec. 31, 2013 Guarantor Subsidiaries [Member] USD ($)	Dec. 31, 2014 Non-Guarantor Subsidiaries [Member] USD ($)	Dec. 31, 2013 Non-Guarantor Subsidiaries [Member] USD ($)
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 375,762	$ (49,463)	$ 569,132			$ (375,043)		$ 281,275		$ 586,220		$ (116,690)
Capital expenditures	(39,739)	(24,303)	(18,557)			0		(1,418)		(27,230)		(11,091)
Payments for acquisitions, net of cash acquired	(1,184,587)	0	(185)			0		0		0		(1,184,587)
Acquisition of investments	(5,375)	(2,500)	(750)							(5,251)		(124)
(Increase) decrease to investment in affiliates	0					293,063		(149,582)		(143,481)
Proceeds from insurance settlements	654	657	0			0		0		654		0
Proceeds from the sale of an investment	5,837	0	0			0		0		0		5,837
Net cash used in investing activities	(1,223,210)	(26,146)	(19,392)			293,063		(151,000)		(175,308)		(1,189,965)
Proceeds from the issuance of long-term debt	600,000	880,000	589,500			0		600,000		0		0
Payments for financing costs	(9,266)	(12,994)	(1,421)			0		(9,266)		0		0
Deemed repurchases of restricted stock	(22,192)					0		(22,192)		0		0
Proceeds from stock option exercises	1,103	1,759	8,777			0		1,103		0		0
Excess tax benefits from share-based compensation arrangements	6,798	4,975	7,484			0		6,798		0		0
Principal payments on capital lease obligations	(2,401)	(1,558)	(1,413)			0		0		(1,910)		(491)
Long-term intercompany debt	0					0		(624,099)		624,099		0
Cash contributions from member	0					0		0		(1,386,837)		1,386,837
Contributions from noncontrolling interest member	835					0		0		0		835
Net cash provided by (used in) financing activities	574,877	(19,953)	(155,087)			0		(47,656)		(764,648)		1,387,181
Net (decrease) increase in cash and cash equivalents from continuing operations	(272,571)	(95,562)	394,653			(81,980)		82,619		(353,736)		80,526
Net cash used in operating activities	(2,955)	0	(82)			0		0		0		(2,955)
Net (decrease) increase in cash and cash equivalents from discontinued operations	(2,955)	0	481			0		0		0		(2,955)
Effect of exchange rate changes on cash and cash equivalents	(45,058)	6,543	0			81,980		(81,980)		(81,980)		36,922
Cash and cash equivalents	201,367	521,951	610,970	250,000	215,836	0	0	1,581	942	83,676	519,392	116,110	1,617
Intangible assets, net	$ 590,824	$ 209,552				$ 0		$ 0		$ 199,785		$ 391,039