Income Taxes (Income Tax Examinations) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 26.7
NEW ZEALAND [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	11.2
Operating Loss Carryforwards, Expiration Dates	Indefinite
SPAIN [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	6.9
Operating Loss Carryforwards, Expiration Dates	2026 - 2027
COLOMBIA [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	5.6
Operating Loss Carryforwards, Expiration Dates	Indefinite
Others [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 3.0
Operating Loss Carryforwards, Expiration Dates	Various