RESTRICTED INVESTMENTS AND BOND COLLATERAL - Maturities of Held-to-Maturity Securities (Detail) (Held-to-maturity securities, USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Held-to-maturity securities
Schedule of Held-to-maturity Securities [Line Items]
Within one year, Amortized cost	$ 1,212
Due in five years or less, Amortized cost	19,360
Due after five years to ten years, Amortized cost	8,897
Due in more than ten years, Amortized cost	5,251
Maturities of held-to-maturity securities, Amortized cost	34,720
Within one year, Fair Value	1,230
Due in five years or less, Fair Value	19,704
Due after five years to ten years, Fair Value	9,070
Due in more than ten years, Fair Value	5,255
Fair value	$ 35,259