Earnings (Loss) Per Share Data (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations Attributable to Parent	$ 68,077	$ (69,351)	$ 192,961	$ 26,265
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	64,831	(66,309)	150,576	40,264
Earnings (loss) per common share - Basic:
Net income	$ 0.67	$ (0.65)	$ 1.54	$ 0.39
Effect of Dilutive Securities [Abstract]
Convertible Securities	66	0	198	212
Stock options, warrants and awards	0	0	0	0
Convertible Securities (in shares)	7,945,000	0	8,283,000	6,360,000
Stock options, warrants and awards, common shares (in shares)	584,000	0	646,000	628,000
Income from continuing operations plus assumed conversions	68,143	(69,351)	193,159	26,477
Earnings (loss) per common share - Diluted:
Net income plus assumed conversions	64,897	(66,309)	150,774	40,476
Diluted shares	105,548,000	101,811,000	106,450,000	109,612,000
Diluted earnings per share	$ 0.61	$ (0.65)	$ 1.42	$ 0.37
Aggregate number of stock options, warrants and awards excluded from the computation of diluted EPS (in shares)				1,000,000
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.70	$ (0.68)	$ 1.98	$ 0.26
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ (3,246)	$ 3,042	$ (42,385)	$ 13,999
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	$ (0.03)	$ 0.03	$ (0.40)	$ 0.13
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	$ (0.03)	$ 0.03	$ (0.43)	$ 0.14
Income (Loss) from Continuing Operations, Per Diluted Share	$ 0.65	$ (0.68)	$ 1.81	$ 0.24
Weighted Average Number of Shares Outstanding, Basic	97,019,000	101,811,000	97,521,000	102,624,000