Earnings (Loss) Per Share Data (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations Attributable to Parent	$ 63,638	$ 48,314
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	63,774	54,354
Earnings (loss) per common share - Basic:
Net income	$ 0.65	$ 0.53
Effect of Dilutive Securities [Abstract]
Convertible Securities	66	71
Stock options, warrants and awards	0	0
Convertible Securities (in shares)	8,463,000	3,753,000
Stock options, warrants and awards, common shares (in shares)	738,000	503,000
Income from continuing operations plus assumed conversions	63,704	48,385
Earnings (loss) per common share - Diluted:
Net income plus assumed conversions	63,840	54,425
Diluted shares (in shares)	107,767,000	107,466,000
Diluted earnings per share (per share)	$ 0.59	$ 0.51
Aggregate number of stock options, warrants and awards excluded from the computation of diluted EPS (in shares)		2,000,000
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.65	$ 0.47
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ 136	$ 6,040
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	$ 0.00	$ 0.06
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	$ 0.00	$ 0.06
Income (Loss) from Continuing Operations, Per Diluted Share	$ 0.59	$ 0.45
Weighted Average Number of Shares Outstanding, Basic	98,566,000	103,210,000