Consolidated Condensed Statements Of Cash Flow (Parenthetical) - USD ($)		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014
Shares repurchased under the share repurchase program, value	[1]	$ 20,052,000	$ 28,903,000
Stock Repurchase Authorization
Shares repurchased under the share repurchase program, value		$ 15,800,000	$ 24,000,000

[1] (a) 2015 and 2014 include $ 15.8 million and $ 24.0 million, respectively, repurchased under the share repurchase program launched in January 2014.