Goodwill and Other Assets (Textuals) (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	Sep. 30, 2012
Goodwill and Other Assets [Line Items]
Goodwill impairment loss	$ 70,000	$ (70,000)	$ 0	$ 0
Capitalized software development costs		40,235	49,513
Amortization expense on capitalized software		20,889	18,833	18,742
Goodwill acquired			26,003
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					16,000
Asset Impairment Charges		72,017	15,783	2,962
Computer software [Member]
Goodwill and Other Assets [Line Items]
Asset Impairment Charges				2,962
Asia Pacific
Goodwill and Other Assets [Line Items]
Goodwill impairment loss		0
Excess Fair Value		23,000
Excess Fair Value Percentage		8.00%
Goodwill acquired			0
North America
Goodwill and Other Assets [Line Items]
Goodwill impairment loss		0
Excess Fair Value Percentage		100.00%
Goodwill acquired			0
Latin America
Goodwill and Other Assets [Line Items]
Goodwill impairment loss		0
Excess Fair Value Percentage		100.00%
Goodwill acquired			0
Brazil
Goodwill and Other Assets [Line Items]
Goodwill impairment loss		(70,000)
Goodwill acquired			$ 26,003