Segment Data (Details) (USD $) In Thousands	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
External sales:
Total external sales	$ 2,403,493	$ 1,884,067	$ 1,999,859
Operating income (loss):
Total operating income (loss)	321,673	93,228	(99,818)
Interest expense	22,760	25,203	27,244
Other expense (income), net	2,780	(8,577)	(14,566)
Income (loss) from continuing operations before income taxes	296,133	76,602	(112,496)
Depreciation and amortization
Total depreciation and amortization	93,471	96,429	96,381
Equity income:
Total equity income	229	107	(1)
Total assets:
Total assets	2,754,469	2,267,823	2,346,974
Capital expenditures:
Total capital expenditures	83,442	56,679	104,842
Investments in affiliated companies:
Total investments in affiliated companies	829	2,251	2,138
Industrial [Member]
External sales:
Total external sales	1,528,672	1,166,793	1,277,981
Operating income (loss):
Total operating income (loss)	209,663	31,210	(115,083)
Depreciation and amortization
Total depreciation and amortization	68,000	70,383	71,718
Equity income:
Total equity income	229	107	(1)
Total assets:
Total assets	1,531,409	1,310,635	1,386,324
Capital expenditures:
Total capital expenditures	48,518	31,609	78,841
Investments in affiliated companies:
Total investments in affiliated companies	829	748	635
Infrastructure [Member]
External sales:
Total external sales	874,821	717,274	721,878
Operating income (loss):
Total operating income (loss)	121,733	79,899	19,768
Depreciation and amortization
Total depreciation and amortization	25,471	26,046	24,663
Equity income:
Total equity income	0	0	0
Total assets:
Total assets	785,718	682,169	672,287
Capital expenditures:
Total capital expenditures	26,411	11,017	26,001
Investments in affiliated companies:
Total investments in affiliated companies	0	1,503	1,503
Corporate [Member]
Operating income (loss):
Total operating income (loss)	(9,723)	(17,881)	(4,503)
Total assets:
Total assets	437,342	275,019	288,363
Capital expenditures:
Total capital expenditures	$ 8,513	$ 14,053