6. Trading and Available-For-Sale Securities at Fair Value (Details) - USD ($) $ in Thousands |
Mar. 31, 2018 |
Mar. 31, 2017 |
|||
|---|---|---|---|---|---|
| Trading securities | $ 212,319 | ||||
| Available-for-sale securities, at fair value | 2 | ||||
| (Recast) | |||||
| Trading securities | [1] | $ 81,575 | |||
| Available-for-sale securities, at fair value | [1] | 2 | |||
| Equity securities | |||||
| Trading securities | 177,063 | 71,697 | |||
| Available-for-sale securities, at fair value | 2 | 2 | |||
| Debt securities | |||||
| Trading securities | 34,986 | 9,877 | |||
| Mutual investment funds | |||||
| Trading securities | $ 270 | $ 1 | |||
| |||||
| X | ||||||||||
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|