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Contingencies (Narrative) (Details)								12 Months Ended
	Dec. 21, 2016 USD ($) Plantiffs	Dec. 21, 2016 PHP Plantiffs	Nov. 29, 2016 USD ($)	Nov. 29, 2016 PHP	Oct. 12, 2016 USD ($)	Mar. 25, 2016 USD ($)	Aug. 25, 2014 USD ($)	Dec. 31, 2004 USD ($)	Dec. 31, 2004 PHP	Dec. 31, 2016 Claims	Jun. 23, 2014 USD ($)	Jun. 23, 2014 PHP
Loss Contingencies [Line Items]
Number of cases filed | Claims										6
Bouaphakeo Case [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value							$ 5,784,758
Loss contingency, damages sought							$ 2,692,145
Dozier Southerland Case [Member]
Loss Contingencies [Line Items]
Loss contingency, damages sought						$ 425,000
Awad Case [Member] [Member]
Loss Contingencies [Line Items]
Loss contingency, damages sought					$ 725,000
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			$ 299,000,000	PHP 14,858,495,937				$ 70,000,000	PHP 3,453,664,710
Loss Contingency, Number of Plaintiffs, Award Increase			4,922	4,922
Estimated Percentage of Settling Complainants	18.00%	18.00%
Loss Contingency, Number of Plaintiffs	5,984	5,984	5,984	5,984
Loss Contingency, Damages Paid Per Complainant	$ 1,369	PHP 68,000
Maximum [Member] | Republic of the Philippines, Department of Labor and Employment and the National Labor Relations Commission [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss											$ 6,900,000	PHP 342,287,800

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Amount of damages awarded to the plaintiff in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
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Number of plaintiffs that have filed claims pertaining to a loss contingency.

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