Pension Plans And Other Postretirement Benefit Plan (Tables)

6 Months Ended

Dec. 31, 2011

Pension And Other Postretirement Benefit Plan [Abstract]

Schedule Of Net Periodic Benefit Cost

	Pension Plans						Postretirement Plan
	Three Months Ended December 31,						Three Months Ended December 31,
	2011			2010			2011			2010
Service cost	$	1,640		$	1,519		$	45		$	50
Interest cost		1,724			1,587			76			85
Expected return on plan assets		(652	)		(404	)		—			—
Recognized actuarial loss (gain)		511			562			(11	)		(19	)
Amortization of unrecognized prior service cost (credit)		7			7			(55	)		(33	)
Net periodic benefit cost	$	3,230		$	3,271		$	55		$	83

	Pension Plans						Postretirement Plan
	Six Months Ended December 31,						Six Months Ended December 31,
	2011			2010			2011			2010
Service cost	$	3,279		$	3,350		$	107		$	90
Interest cost		3,448			3,095			180			162
Expected return on plan assets		(1,303	)		(955	)		—			—
Recognized actuarial loss (gain)		1,023			1,188			(11	)		(48	)
Amortization of unrecognized prior service cost (credit)		13			11			(88	)		(66	)
Net periodic benefit cost	$	6,460		$	6,689		$	188		$	138