STOCK-BASED COMPENSATION (Summary of Stock Appreciation Rights Activity) (Detail) - Stock Appreciation Rights (SARs) [Member] $ / shares in Units, $ in Thousands	6 Months Ended
	Dec. 31, 2017 USD ($) $ / shares shares
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of Stock Appreciation Rights, Outstanding at beginning of period | shares	99,500
Number of Stock Appreciation Rights, Rights Exercised | shares	(34,100)
Number of Stock Appreciation Rights, Rights Expired | shares	(65,400)
Number of Stock Appreciation Rights, Outstanding at end of period | shares	0
Number of Stock Appreciation Rights, Exercisable at end of period | shares	0
Weighted Average Grant Date Fair Value, Nonvested beginning balance | $ / shares	$ 45.04
Weighted Average Grant Date Fair Value, Nonvested Rights Exercised | $ / shares	38.71
Weighted Average Grant Date Fair Value, Nonvested Rights Expired | $ / shares	48.34
Weighted Average Grant Date Fair Value, Nonvested ending balance | $ / shares	0
Weighted Average Grant Date Fair Value, Nonvested Exercisable at end of period | $ / shares	$ 0
Weighted Average Remaining Contractual Life, Outstanding at end of period	0 years
Weighted Average Remaining Contractual Life, Exercisable at end of period	0 years
Aggregate Intrinsic Value, Outstanding at end of period | $	$ 0
Aggregate Intrinsic Value, Exercisable at end of period | $	$ 0