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Commitments and contingencies (Details) (USD $)
In Millions, unless otherwise specified |
1 Months Ended | 12 Months Ended | 9 Months Ended | 1 Months Ended |
|---|---|---|---|---|
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Mar. 31, 2009
Threatened Litigation [Member]
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Sep. 30, 2012
Pending Litigation [Member]
Minimum [Member]
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Jun. 30, 2014
Norton Et Al Pending Litigation [Member]
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Jan. 31, 2014
Norton Et Al Pending Litigation [Member]
Minimum [Member]
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| Commitments and Contingencies | ||||
| Amount of claim | $ 2.3 | $ 10.0 | $ 5.0 | |
| Reserve recorded to cover the liabilities | $ 0.6 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The value (monetary amount) of the award the plaintiff seeks in the legal matter. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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