Quarterly report pursuant to Section 13 or 15(d)

6. Trading Securities (Details)

v3.8.0.1
6. Trading Securities (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Mar. 31, 2017
Trading securities $ 199,207  
(Recast)    
Trading securities [1]   $ 81,575
Equity securities    
Trading securities 164,853  
Equity securities | (Recast)    
Trading securities   71,697
Debt securities    
Trading securities 32,903  
Debt securities | (Recast)    
Trading securities   9,877
Depository notes    
Trading securities 1,192  
Depository notes | (Recast)    
Trading securities   0
Mutual investment funds    
Trading securities $ 259  
Mutual investment funds | (Recast)    
Trading securities   $ 1
[1] See Notes 1 and 3 for information regarding recast amounts and basis of financial statement presentation.