Investments in Policies Account (Detail) (USD $)	May 31, 2013	Feb. 28, 2013
Number of Interests in Life Settlement Contracts
0-1 (in years)	1
1-2 (in years)	0
2-3 (in years)	14
3-4 (in years)	4
4-5 (in years)	8
Thereafter	137
Total	164
Carrying Value
0-1 (in years)	$ 3,506
1-2 (in years)	0
2-3 (in years)	686,247
3-4 (in years)	45,117
4-5 (in years)	71,413
Thereafter	1,500,574
Total	2,306,857	2,329,005
Face Value
0-1 (in years)	18,182
1-2 (in years)	0
2-3 (in years)	969,345
3-4 (in years)	227,992
4-5 (in years)	134,883
Thereafter	5,108,487
Total	$ 6,458,889