Financing Receivables (Institutional Loans Past Due) (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Institutional Loans, Past Due	$ 18,800	$ 16,611	$ 11,142
Institutional Loans, Current	31,415	31,326	35,491
Total Institutional Loans	50,215	47,937	46,633
Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Institutional Loans, Past Due	3,226	3,578	5,535
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Institutional Loans, Past Due	1,601	2,458	963
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Institutional Loans, Past Due	566	687	308
Financing Receivables Greater Than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Institutional Loans, Past Due	$ 13,407	$ 9,888	$ 4,336