XML 52 R43.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Debt (Details) (USD $)
Jun. 30, 2011
Dec. 31, 2010
Corporation's long-term debt    
Senior credit facility $ 325,000,000 $ 325,000,000
5.625% Senior Notes due 2021 248,438,000 248,301,000
Other, including capital leases 953,000 1,111,000
Long-term debt (including current maturities) 574,391,000 574,412,000
Less current maturities 331,000 322,000
Long-term debt, net of current maturities $ 574,060,000 $ 574,090,000