Offsetting of financial assets and liabilities - Additional Information (Detail) |
9 Months Ended |
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Sep. 30, 2015 | |
Offsetting [Line Items] | |
Derivative Asset Liabilities Setoff Rights Description | The Corporation’s derivatives are subject to agreements which allow a right of set-off with each respective counterparty. |
Securities Purchased Sold Under Agreements To Resell Setoff Rights Description | In addition, the Corporation’s Repurchase Agreements and Reverse Repurchase Agreements have a right of set-off with the respective counterparty under the supplemental terms of the Master Repurchase Agreements. In an event of default each party has a right of set-off against the other party for amounts owed in the related agreement and any other amount or obligation owed in respect of any other agreement or transaction between them. |