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Employee Plans (Tables) | 12 Months Ended
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Dec. 31, 2018
Employee Service Share Based Compensation Aggregate Disclosures [Abstract] |
Summary of Information Regarding the Common Shares Issued Under the ESPP | The following table summarizes information regarding the Common Shares issued under the ESPP (the net proceeds noted below were contributed to ERPOP in exchange for OP Units):
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
|  | (Amounts in thousands except share and per share amounts) |
Shares issued |  |  | 75,414 |  |  |  | 68,286 |  |  |  | 63,909 |
Issuance price ranges |  | $47.80 – $57.09 |  |  | $52.79 – $58.06 |  |  | $51.85 – $63.37 |
Issuance proceeds |  | $3,879 |  |  | $3,744 |  |  | $3,686 |

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- Definition Tabular disclosure of employee stock purchase plan activity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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