Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)

v2.4.1.9
CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Preferred stock, par value 0.01us-gaap_PreferredStockParOrStatedValuePerShare 0.01us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized 100,000,000us-gaap_PreferredStockSharesAuthorized 100,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock liquidation preference, per share 25.00us-gaap_PreferredStockLiquidationPreference 25.00us-gaap_PreferredStockLiquidationPreference
Common stock, par value 0.01us-gaap_CommonStockParOrStatedValuePerShare 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 1,000,000,000us-gaap_CommonStockSharesAuthorized 1,000,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 66,424,508us-gaap_CommonStockSharesIssued 66,424,508us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 66,424,508us-gaap_CommonStockSharesOutstanding 66,424,508us-gaap_CommonStockSharesOutstanding
Series B Cumulative Redeemable Preferred Stock [Member]    
Preferred stock, dividend rate 9.75%us-gaap_PreferredStockDividendRatePercentage
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember
9.75%us-gaap_PreferredStockDividendRatePercentage
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember
Preferred stock, shares issued 1,347,321us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember
1,347,321us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember
Preferred stock, shares outstanding 1,347,321us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember
1,347,321us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember
Series C Cumulative Redeemable Preferred Stock [Member]    
Preferred stock, dividend rate 8.05%us-gaap_PreferredStockDividendRatePercentage
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
8.05%us-gaap_PreferredStockDividendRatePercentage
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
Preferred stock, shares issued 496,000us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
496,000us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
Preferred stock, shares outstanding 496,000us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
496,000us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
Series D Cumulative Redemable Preferred [Member]    
Preferred stock, dividend rate 8.375%us-gaap_PreferredStockDividendRatePercentage
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
8.375%us-gaap_PreferredStockDividendRatePercentage
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
Preferred stock, shares issued 620,000us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
620,000us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
Preferred stock, shares outstanding 620,000us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
620,000us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember