Consolidated Condensed Statements Of Cash Flow (Parenthetical) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Shares repurchased under the share repurchase program, value	[1]	$ 96,801	$ 20,052
Stock Repurchase Authorization
Shares repurchased under the share repurchase program, value		$ 93,500	$ 15,800

[1] 2016 and 2015 include $ 93. 5 million and $ 15.8 million, respectively, repurchased under share repurchase programs.