RESTRICTED INVESTMENTS AND BOND COLLATERAL - Amortized Cost, Gross Unrealized Holding Gains and Losses and Fair Value of Held-to-Maturity Securities (Detail) (Restricted Investments and Bond Collateral [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014
Restricted Investments and Bond Collateral [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost basis	$ 34,538
Gross unrealized holding gains	643
Gross unrealized holding losses	(62)
Fair value	$ 35,119