Goodwill and Other Assets - Schedule of Goodwill (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill [Roll Forward]
Goodwill		$ 493,695	$ 473,807
Accumulated impairment losses		(220,744)	(220,744)
Balance		272,951	253,063
Goodwill acquired			26,003
Impairment loss	70,000	(70,000)	0	0
Currency translation adjustment		(23,123)	(6,115)
Goodwill		470,572	493,695	473,807
Accumulated impairment losses		(290,744)	(220,744)	(220,744)
Balance		179,828	272,951	253,063
North America
Goodwill [Roll Forward]
Goodwill		112,176	112,113
Accumulated impairment losses		(13,171)	(13,171)
Balance		99,005	98,942
Goodwill acquired			0
Impairment loss		0
Currency translation adjustment		(147)	63
Goodwill		112,029	112,176
Accumulated impairment losses		(13,171)	(13,171)
Balance		98,858	99,005
Asia Pacific
Goodwill [Roll Forward]
Goodwill		45,987	46,012
Accumulated impairment losses		0	0
Balance		45,987	46,012
Goodwill acquired			0
Impairment loss		0
Currency translation adjustment		(4,680)	(25)
Goodwill		41,307	45,987
Accumulated impairment losses		0	0
Balance		41,307	45,987
EMEA
Goodwill [Roll Forward]
Goodwill		168,714	168,714
Accumulated impairment losses		(168,714)	(168,714)
Balance		0	0
Goodwill acquired			0
Impairment loss		0
Currency translation adjustment		0	0
Goodwill		168,714	168,714
Accumulated impairment losses		(168,714)	(168,714)
Balance		0	0
Latin America
Goodwill [Roll Forward]
Goodwill		5,022	4,701
Accumulated impairment losses		0	0
Balance		5,022	4,701
Goodwill acquired			0
Impairment loss		0
Currency translation adjustment		(198)	321
Goodwill		4,824	5,022
Accumulated impairment losses		0	0
Balance		4,824	5,022
Brazil
Goodwill [Roll Forward]
Goodwill		161,796	142,267
Accumulated impairment losses		(38,859)	(38,859)
Balance		122,937	103,408
Goodwill acquired			26,003
Impairment loss		(70,000)
Currency translation adjustment		(18,098)	(6,474)
Goodwill		143,698	161,796
Accumulated impairment losses		(108,859)	(38,859)
Balance		$ 34,839	$ 122,937