BASIS OF PRESENTATION OF UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: (Details) (USD $)	3 Months Ended				9 Months Ended
	Mar. 31, 2012 Y ShareBasedAward	Dec. 31, 2011	Sep. 30, 2011	Mar. 31, 2011	Mar. 31, 2012 Y ShareBasedAward	Mar. 31, 2011
Stock-based compensation award plans
Number of types of share-based awards granted	4				4
Compensation expense	$ 1,400,000			$ 2,200,000	$ 6,100,000	$ 7,200,000
Stock options outstanding
Balance at the beginning of the period (in shares)	810,000	826,000	838,000		838,000
Forfeited or expired (in shares)	(19,000)	(16,000)	(12,000)
Balance at the end of the period (in shares)	791,428	810,000	826,000		791,428
Exercisable at the end of the period (in shares)	645,028				645,028
Stock options, weighted average exercise price
Balance at the beginning of the period (in dollars per share)	$ 31.53	$ 31.54	$ 31.48		$ 31.48
Forfeited or expired (in dollars per share)	$ 22.42	$ 32.42	$ 26.86
Balance at the end of the period (in dollars per share)	$ 31.75	$ 31.53	$ 31.54		$ 31.75
Exercisable at the end of the period (in dollars per share)	$ 33.33				$ 33.33
Intrinsic value of exercisable options (in dollars)	0				0
Outstanding options, weighted average remaining contractual term (in years)	3.7				3.7
Weighted average remaining contractual term of exercisable options (in years)					3.0
Options expected to vest (in shares)	128,881				128,881
Options expected to vest, weighted average exercise price (in dollars per share)	$ 25.52				$ 25.52
Options expected to vest, weighted average remaining contractual life (in years)					6.2
Options expected to vest, total intrinsic value (in dollars)	0				0
Stock-based compensation award plans, additional disclosures
Cash received from exercise of share-based instruments	0			0	0	700,000
Unrecognized compensation cost related to unvested stock-based compensation	10,300,000				10,300,000
Weighted average period of recognition of unrecognized compensation cost related to unvested stock-based compensation (in years)					2.8
Intrinsic value of share-based awards exercised	1,200,000			0	1,200,000	500,000
Outstanding options, intrinsic value (in dollars)	0				0
Stock options and SARs
Stock-based compensation award plans
Award expiration period (in years)	P10Y
Vesting period (in years)	5 years
Percentage of stock-based awards vesting annually on each of the first five anniversaries of the date of grant	20.00%
SARs
Rollforward of RSAs, RSUs and SARs outstanding
Outstanding at the beginning of the period (in shares)	999,000	1,030,000	1,087,000		1,087,000
Forfeited or expired (in shares)	(98,000)	(31,000)	(57,000)
Outstanding at the end of the period (in shares)	901,230	999,000	1,030,000		901,230
RSAs, RSUs and SARs outstanding, other relevant terms of the awards
Weighted Average Exercise Price, outstanding at the beginning of the period (in dollars per share)	$ 25.44	$ 25.43	$ 25.54		$ 25.54
Weighted Average Exercise Price, Forfeited or Expired (in dollars per share)	$ 24.14	$ 25.41	$ 27.45		$ 24.14
Weighted Average Exercise Price, outstanding at the end of the period (in dollars per share)	$ 25.57	$ 25.44	$ 25.43		$ 25.57
Exercisable at the end of the period (in shares)	514,250				514,250
Exercisable awards, intrinsic value	0				0
Outstanding and unvested awards, intrinsic value	100,000				100,000
Outstanding awards, intrinsic value	100,000				100,000
Outstanding and unvested awards (in shares)	311,471				311,471
Outstanding awards, weighted average remaining contractual term (in years)					5.7
Outstanding and unvested awards expected to vest, weighted average grant price (in dollars per share)	$ 20.40				$ 20.40
Outstanding and unvested awards expected to vest, weighted average remaining contractual term (in years)					6.6
Weighted average remaining contractual term of exercisable options (in years)					4.6
RSAs and RSUs
Rollforward of RSAs, RSUs and SARs outstanding
Nonvested at the beginning of the period (in shares)	1,006,000	1,073,000	1,077,000		1,077,000
Granted (in shares)	35,000		20,000
Vested/Exercised (in shares)	(218,000)	3,000	2,000
Forfeited or expired (in shares)	(104,000)	(70,000)	(26,000)
Nonvested at the end of the period (in shares)	719,000	1,006,000	1,073,000		719,000
RSAs, RSUs and SARs outstanding, other relevant terms of the awards
Outstanding and unvested awards (in shares)	719,000	1,006,000	1,073,000		719,000
Weighted Average Grant Date Fair Value, nonvested at the beginning of the period (in dollars per share)	$ 23.69	$ 23.39	$ 23.48		$ 23.48
Weighted Average Grant Date Fair Value, Granted (in dollars per share)	$ 17.61		$ 13.59
Weighted Average Grant Date Fair Value, Vested/Exercised (in dollars per share)	$ 35.18	$ 19.07	$ 22.32
Weighted Average Grant Date Fair Value, Forfeited or Expired (in dollars per share)	$ 19.46	$ 18.88	$ 19.39		$ 19.46
Weighted Average Grant Date Fair Value, nonvested at the end of the period (in dollars per share)	$ 20.25	$ 23.69	$ 23.39		$ 20.25
RSAs
Stock-based compensation award plans
Vesting period (in years)	5 years
Percentage of stock-based awards vesting annually on each of the first five anniversaries of the date of grant	20.00%
Rollforward of RSAs, RSUs and SARs outstanding
Nonvested at the end of the period (in shares)	669,166				669,166
RSAs, RSUs and SARs outstanding, other relevant terms of the awards
Outstanding and unvested awards (in shares)	669,166				669,166
Outstanding awards, intrinsic value	12,300,000				12,300,000
Outstanding and unvested awards (in shares)	605,019				605,019
Outstanding awards, weighted average remaining contractual term (in years)					1.4
Outstanding and unvested awards expected to vest, total intrinsic value (in dollars)	11,200,000				11,200,000
Unvested RSAs with accelerated vesting period held by the company's chief executive officer and the company's executive vice president (in shares)	68,390				68,390
Incremental compensation cost recognized as a result of the modifications	100,000				200,000
RSUs
Stock-based compensation award plans
Vesting period (in years)	5 years
Rollforward of RSAs, RSUs and SARs outstanding
Vested/Exercised (in shares)					(165,000)
Outstanding at the end of the period (in shares)	215,000				215,000
RSAs, RSUs and SARs outstanding, other relevant terms of the awards
Outstanding and unvested awards, intrinsic value	900,000				900,000
Outstanding awards, intrinsic value	4,000,000				4,000,000
Nonvested awards, weighted average remaining vesting term (in years)					0.1
Outstanding and unvested awards (in shares)	50,000				50,000
Vested during the period, intrinsic value	$ 3,100,000				$ 3,100,000
RSUs | Less than
RSAs, RSUs and SARs outstanding, other relevant terms of the awards
Outstanding awards, weighted average remaining contractual term (in years)					0.1