Merger (Details) (USD $)	0 Months Ended	2 Months Ended	3 Months Ended
	Jan. 06, 2015	Feb. 27, 2015 Count_of_employees M	Mar. 31, 2015	Mar. 31, 2014	Jan. 07, 2015 M	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Share Price			$ 14.50
Required stock ownership					90.00%
Stock Issued During Period, Shares, New Issues	41,286,271
Transaction costs			$ 47,979,000	$ 5,919,000
Employee severance and relocation, exit of corporate headquarters; leasehold improvements and office equipment expense low end			25,000,000
Severance Costs			7,000,000
Employee severance and relocation, exit of corporate headquarters; leasehold improvements and office equipment expense high end			40,000,000
Estimated cost of leasehold improvements and office equipment low end			10,000,000
Estimated cost of leasehold improvements and office equipment high end			12,000,000
Relocation incentives			3,000,000
Estimated remaining life					12
Estimated remaining life high end					18
Terminated Latin American employees		300
Payments for Postemployment Benefits			5,000,000
Tendered Shares	39,791,364
Shares tendered via guaranteed delivery	1,748,335
Sale of Stock, Percentage of Ownership after Transaction	84.46%
Common stock, shares outstanding			10,679,368	46,911,372	1,000	47,112,311
Business Acquisition, Transaction Costs					746,000,000
Payments for Repurchase of Common Stock		683,000,000	36,588,000	0
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost			37,000,000
Cash					26,000,000
Latin America [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs			$ 1,000,000