Equity Component [Domain]
Preferred Stock Including Additional Paid in Capital [Member] Common Stock [Member] Additional Paid-in Capital [Member] Deferred Compensation, Net [Member] Retained Earnings [Member] Accumulated Other Comprehensive Income [Member]
Class of Stock [Domain] Class of Stock [Domain] Class of Stock [Domain] Class of Stock [Domain] Class of Stock [Domain] Class of Stock [Domain] Class of Stock [Domain]
Preferred Shares, Series B [Member] Preferred Shares, Series C [Member] Common Stock [Member] Preferred Shares, Series B [Member] Preferred Shares, Series C [Member] Common Stock [Member]
2006 Statement [Line Items]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) 7,753,000 7,753,000
Cash Dividends 7,949,000 12,594,000 109,088,000 7,949,000 12,594,000 109,088,000
Stock Issued During Period, Shares, New Issues 1 16,895,926
Stock Issued During Period, Value, New Issues 2,000 351,737,000 351,739,000
Cumulative Effect of Initial Adoption of New Accounting Principle (11,401,000) 11,401,000
Other Comprehensive Income (Loss), Net of Tax, Period Increase (Decrease) 1,273,000 1,273,000
Stockholders' Equity 226,904,000 7,000 1,188,900,000 (294,640,000) 1,273,000 1,122,444,000
Shares, Issued 6,260,001 69,051,781
2005 Statement [Line Items]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) 32,695,000 32,695,000
Cash Dividends 6,360,000 8,134,000 72,617,000 6,360,000 8,134,000 72,617,000
Stock Issued During Period, Shares, New Issues 400,000 3,534,582
Stock Issued During Period, Value, New Issues 19,463,000 81,682,000 5,575,000 19,463,000 76,107,000
Deferred Compensation Equity, Value, Amortization 2,866,000 2,866,000
Stockholders' Equity 226,904,000 5,000 848,564,000 (11,401,000) (172,762,000) 891,310,000
Shares, Issued 6,260,000 52,155,855
2004 Statement [Line Items]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) 44,807,000 44,807,000
Cash Dividends 6,360,000 65,086,000 6,360,000 65,086,000
Stock Issued During Period, Shares, New Issues 2,700,000 7,939,272
Stock Issued During Period, Value, New Issues 131,126,000 1,000 161,572,000 4,381,000 131,126,000 157,192,000
Deferred Compensation Equity, Value, Amortization 1,954,000 1,954,000
Reclassifications of Temporary to Permanent Equity, Shares 287,888
Reclassifications of Temporary to Permanent Equity 3,809,000 3,809,000
Stockholders' Equity 207,441,000 5,000 766,882,000 (8,692,000) (118,346,000) 847,290,000
Shares, Issued 5,860,000 48,621,273
2003 Statement [Line Items]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity 76,315,000 4,000 601,501,000 (6,265,000) (91,707,000) 579,848,000
Shares, Issued 3,160,000 40,394,113