Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Pensions) (Details)

v3.5.0.2
Summary of Significant Accounting Policies (Pensions) (Details)
Companies in Thousands, $ in Thousands
 1 Months Ended 12 Months Ended
Apr. 30, 2013
Sep. 30, 2016
USD ($)
Employees
Companies
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Multiemployer plan, percentage decrease in pension rights 6.30%      
Multiemployer plan, contributions   $ 983 $ 963 $ 1,087
Pensioenfonds Metaal en Techniek        
Multiemployer plan, number of employees | Employees   1,200,000    
Multiemployer plan, number of companies covered | Companies   33    
Multiemployer plan, contribution rate (less than)   5.00%    
Multiemployer plan, coverage ratio of plan assets to obligations   92.10%    
Multiemployer plan, premium percentage 16.60%      
Multiemployer plan, assets   $ 76,700,000    
Multiemployer plan, present value of accumulated plan benefits   83,300,000    
Multiemployer plan, contributions   796 805 929
Other Plans        
Multiemployer plan, contributions   $ 187 $ 158 $ 158
Minimum | Pensioenfonds Metaal en Techniek        
Multiemployer plan, coverage ratio of plan assets to obligations   89.60%    
Maximum | Pensioenfonds Metaal en Techniek        
Multiemployer plan, coverage ratio of plan assets to obligations   99.20%    
The Netherlands | Pensioenfonds Metaal en Techniek        
Multiemployer plan, number of employees | Employees   130