Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]
Common Stock, par value	$ 1.00	$ 1.00
Common Stock, shares authorized	100,000	100,000
Common Stock, shares issued	25,413	25,413
Common Stock, shares outstanding	23,311	23,405
Treasury stock, shares	2,101	2,008