Annual report pursuant to Section 13 and 15(d)

Credit facilities (Details)

v2.4.0.8
Credit facilities (Details)
In Millions, unless otherwise specified
0 Months Ended 12 Months Ended 12 Months Ended
Mar. 15, 2013
Credit Facility
USD ($)
Sep. 30, 2014
Credit Facility
item
Sep. 30, 2014
Credit Facility
Base Rate
Sep. 30, 2014
Credit Facility
Euro currency Rate
Sep. 30, 2014
Credit Facility
Index Rate
Sep. 30, 2014
Credit Facility
Minimum
Sep. 30, 2014
Credit Facility
Minimum
Base Rate
Sep. 30, 2014
Credit Facility
Minimum
Euro currency Rate
Sep. 30, 2014
Credit Facility
Minimum
Index Rate
Sep. 30, 2014
Credit Facility
Maximum
Base Rate
Sep. 30, 2014
Credit Facility
Maximum
Euro currency Rate
Sep. 30, 2014
Credit Facility
Maximum
Index Rate
Mar. 15, 2013
Swingline loans
USD ($)
Sep. 30, 2014
Letters of credit
USD ($)
Mar. 15, 2013
Letters of credit
USD ($)
Sep. 30, 2014
Letters of credit
Minimum
Sep. 30, 2014
Letters of credit
Maximum
Sep. 30, 2014
Letter of credit (Other than Revolving Credit Agreement)
USD ($)
item
Sep. 30, 2014
Atlantic Innovation Fund of Canada
USD ($)
item
Sep. 30, 2014
Atlantic Innovation Fund of Canada
CAD
Sep. 30, 2014
Performance Bonds
USD ($)
Credit facilities                                          
Term of the credit agreement 5 years                                        
Maximum borrowing capacity $ 100.0                       $ 5.0   $ 30.0         1.8  
Number of letters of credit issued   3                               2      
Amount borrowed                           4.7       3.0      
Leverage ratio           2.5                              
Leverage ratio to calculate annual commitment fee (as a percent)                               0.15% 0.30%        
Variable rate basis     Base Rate Eurocurrency Rate Index Rate                                
Margin (as a percent)             0.00% 1.00% 1.00% 0.75% 1.75% 1.75%                  
Interest charges (as a percent)                                     0.00% 0.00%  
Number of remaining quarterly installments                                     31 31  
Amount outstanding                                     1.2 1.4  
Performance bond commitments                                         $ 38.2