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Contingencies (Narrative) (Details)
1 Months Ended 12 Months Ended
Jul. 11, 2017
USD ($)
Dec. 21, 2016
USD ($)
Plantiffs
Dec. 21, 2016
PHP
Plantiffs
Mar. 25, 2016
USD ($)
Sep. 22, 2014
USD ($)
Aug. 25, 2014
USD ($)
Aug. 31, 2017
USD ($)
Sep. 30, 2006
USD ($)
Sep. 30, 2006
PHP
Sep. 30, 2017
Claims
Jun. 23, 2014
USD ($)
Jun. 23, 2014
PHP
Loss Contingencies [Line Items]                        
Number of cases filed | Claims                   6    
Maximum [Member]                        
Loss Contingencies [Line Items]                        
Loss Contingency, Estimate of Possible Loss                     $ 6,700,000 PHP 342,287,800
Bouaphakeo Case [Member]                        
Loss Contingencies [Line Items]                        
Loss contingency, damages awarded           $ 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                
Mark Lopez Case [Member]                        
Loss Contingencies [Line Items]                        
Loss contingency, damages awarded             $ 13,000,000          
Republic of the Philippines, Department of Labor and Employment and the National Labor Relations Commission [Member]                        
Loss Contingencies [Line Items]                        
Loss contingency, damages awarded               $ 67,000,000 PHP 3,453,664,710      
Estimated Percentage of Settling Complainants   18.00% 18.00%                  
Loss Contingency, Number of Plaintiffs | Plantiffs   5,984 5,984                  
Loss Contingency, Estimate of Possible Loss Per Complainant   $ 1,325 PHP 68,000