Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Consolidated Balance Sheets
Interest rate (as a percent)	2.50%	2.50%
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,000,000us-gaap_PreferredStockSharesAuthorized	2,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	58,750,000us-gaap_CommonStockSharesAuthorized	58,750,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	25,599,550us-gaap_CommonStockSharesIssued	21,772,571us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	25,599,550us-gaap_CommonStockSharesOutstanding	21,772,571us-gaap_CommonStockSharesOutstanding

Face amount or stated value per share of common stock.

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