Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Variable Interest Entities (Schedule Of Maximum Exposure To Loss In VIEs) (Details)

v3.6.0.2
Variable Interest Entities (Schedule Of Maximum Exposure To Loss In VIEs) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Variable Interest Entities [Abstract]    
Carrying value of investments (Note 12) $ 118,783 $ 114,711
Carrying value of the ALS Notes Receivable   85,747
Debt guarantees 125,429 248,105
Maximum exposure to loss $ 244,212 $ 448,563