Credit facilities (Details)
In Millions, unless otherwise specified |
0 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 15, 2013
Credit Facility
USD ($)
|
Sep. 30, 2013
Credit Facility
Base Rate
|
Sep. 30, 2013
Credit Facility
Euro currency Rate
|
Sep. 30, 2013
Credit Facility
Index Rate
|
Sep. 30, 2013
Credit Facility
Minimum
|
Sep. 30, 2013
Credit Facility
Minimum
Base Rate
|
Sep. 30, 2013
Credit Facility
Minimum
Euro currency Rate
|
Sep. 30, 2013
Credit Facility
Minimum
Index Rate
|
Sep. 30, 2013
Credit Facility
Maximum
|
Sep. 30, 2013
Credit Facility
Maximum
Base Rate
|
Sep. 30, 2013
Credit Facility
Maximum
Euro currency Rate
|
Sep. 30, 2013
Credit Facility
Maximum
Index Rate
|
Mar. 15, 2013
Swingline loans
USD ($)
|
Sep. 30, 2013
Letters of credit
USD ($)
Item
|
Mar. 15, 2013
Letters of credit
USD ($)
|
Sep. 30, 2013
Letters of credit
Minimum
|
Sep. 30, 2013
Letters of credit
Maximum
|
Sep. 30, 2013
Letter of credit (Other than Revolving Credit Agreement)
USD ($)
Item
|
Sep. 30, 2013
Atlantic Innovation Fund of Canada
USD ($)
Item
|
Sep. 30, 2013
Atlantic Innovation Fund of Canada
CAD
|
Sep. 30, 2013
Performance Bonds
USD ($)
|
Sep. 30, 2012
Performance Bonds
USD ($)
|
|
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 | 5 | 2 | ||||||||||||||||||||
Amount outstanding | 15.4 | 3.0 | ||||||||||||||||||||
Leverage ratio | 2.5 | |||||||||||||||||||||
Leverage ratio, actual | 0.1 | |||||||||||||||||||||
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 | 35 | 35 | ||||||||||||||||||||
Amount outstanding | 1.5 | 1.5 | ||||||||||||||||||||
Performance bond commitments | $ 50.8 | $ 48.0 |