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Commitments and Contingencies - Additional Information (Detail) In Millions, unless otherwise specified | Sep. 30, 2014 USD ($) | Apr. 30, 2008 Ministry Of Justice Of Belgium EUR (€) | Apr. 30, 2007 Ministry Of Justice Of Belgium EUR (€) | Dec. 31, 2007 Lufthansa AG EUR (€) | Aug. 31, 2013 Health Information Management (HIM) USD ($) | Aug. 31, 2012 Health Information Management (HIM) USD ($)
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Loss Contingencies [Line Items] |  |  |  |  |  |
Claim for damages against termination of contract |  |  | € 28.0 | € 21.4 | $ 35.0 | $ 35.0
Counterclaim against termination of contract |  | 18.5 |  | 1.5 |  |
Unreserved tax-related matters, inclusive of interest | $ 133 |  |  |  |  |

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