Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity (Details)

v2.4.1.9
Shareholders' Equity (Details) (USD $)
1 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Financing Agreements [Line Items]        
Common stock reserved for future issuance   $ 250,000,000wre_CommonStockCapitalSharesReservedForFutureIssuancesValue    
Issuance and sale of stock, term 36 months      
Net proceeds from equity offerings   30,690,000us-gaap_ProceedsFromIssuanceOfCommonStock 0us-gaap_ProceedsFromIssuanceOfCommonStock 0us-gaap_ProceedsFromIssuanceOfCommonStock
Stock Issued During Period, Value, Dividend Reinvestment Plan       1,316,000us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan
Common Stock [Member]        
Financing Agreements [Line Items]        
Stock Issued During Period, Shares, New Issues   1,125,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
0us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
0us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
common stock, weighted average issued price   $ 27.86wre_Commonstockweightedaverageissuedprice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Net proceeds from equity offerings   30,700,000us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Shares issued under Dividend Reinvestment Program, shares   0us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
0us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
55,000us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
Weighted average issue price, dividend reinvestment program       $ 29.67wre_WeightedAverageIssuePriceDividendReinvestmentProgram
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
Stock Issued During Period, Value, Dividend Reinvestment Plan       1,000us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
Additional Paid In Capital [Member]        
Financing Agreements [Line Items]        
Stock Issued During Period, Value, Dividend Reinvestment Plan       $ 1,315,000us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember