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Contingencies (Narrative) (Details)										1 Months Ended	12 Months Ended
	Dec. 21, 2017 USD ($)	Dec. 21, 2016 USD ($) Plantiffs	Dec. 21, 2016 PHP Plantiffs	Nov. 29, 2016 USD ($) Plantiffs	Nov. 29, 2016 PHP Plantiffs	Mar. 25, 2016 USD ($)	Aug. 25, 2014 USD ($)	Jun. 23, 2014 USD ($)	Jun. 23, 2014 PHP	Aug. 31, 2017 USD ($)	Dec. 31, 2004 USD ($)	Dec. 31, 2004 PHP	Dec. 30, 2017 Claims
Loss Contingencies [Line Items]
Number of cases filed | Claims													4
Bouaphakeo Case [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value							$ 5,784,758
Loss contingency, damages sought							$ 2,692,145
Joint Notice- Bouaphakeo, Edwards, Murray, DeVoss Cases [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party	$ 12,600,000
Dozier Southerland Case [Member]
Loss Contingencies [Line Items]
Loss contingency, damages sought						$ 425,000
Republic of the Philippines, Department of Labor and Employment and the National Labor Relations Commission [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value				$ 297,000,000	PHP 14,858,495,937						$ 69,000,000	PHP 3,453,664,710
Loss Contingency, Number of Plaintiffs, Award Increase | Plantiffs				4,922	4,922
Estimated Percentage of Settling Complainants		18.00%	18.00%
Loss Contingency, Number of Plaintiffs | Plantiffs		5,984	5,984
Loss Contingency, Damages Paid Per Complainant		$ 1,360	PHP 68,000
Mark Lopez Case [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value										$ 13,000,000
Maximum [Member] | Republic of the Philippines, Department of Labor and Employment and the National Labor Relations Commission [Member]
Loss Contingencies [Line Items]
litigation settlement, amount requested by respondent								$ 6,800,000	PHP 342,287,800

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-Name Accounting Standards Codification
-Topic 450
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