Consolidated Statement of Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	$ (5)	$ (26)	$ (14)	$ (78)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	54,562	45,185	161,470	131,713
Net Income (Loss) Attributable to Non-controlling Interest		242		(123)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	54,549	45,109	161,430	131,485
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 54,416	$ 44,943	$ 161,310	$ 131,836