STOCK-BASED COMPENSATION (Details) (USD $)	3 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Stock-based compensation expense.
Stock-based compensation expense	$ 2,198,000	$ 1,285,000
Stock Options
Stock-based compensation expense.
Stock-based compensation expense	115,000	131,000
Granted (in shares)	18,796	0
Unrecognized stock-based compensation expense
Unrecognized stock-based compensation expense related to non-vested awards	900,000
Weighted-average period of recognition of unrecognized stock-based compensation expenses of non-vested awards (in years)	2.3
Stock Appreciation Rights
Stock-based compensation expense.
Stock-based compensation expense	295,000	167,000
Granted (in shares)	42,804	0
Unrecognized stock-based compensation expense
Unrecognized stock-based compensation expense related to non-vested awards	2,200,000
Weighted-average period of recognition of unrecognized stock-based compensation expenses of non-vested awards (in years)	2.1
Restricted Stock
Stock-based compensation expense.
Stock-based compensation expense	1,086,000	470,000
Granted (in shares)	44,950	0
Unrecognized stock-based compensation expense
Unrecognized stock-based compensation expense related to non-vested awards	7,300,000
Weighted-average period of recognition of unrecognized stock-based compensation expenses of non-vested awards (in years)	4.0
Performance Shares
Stock-based compensation expense.
Stock-based compensation expense	702,000	517,000
Granted (in shares)	49,600	0
Vested (in shares)	0	74,500
Vested (in dollars per share)	$ 0.00	$ 42.53
Unrecognized stock-based compensation expense
Unrecognized stock-based compensation expense related to non-vested awards	$ 3,700,000
Weighted-average period of recognition of unrecognized stock-based compensation expenses of non-vested awards (in years)	0.9

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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