Dispositions - Additional Information (Detail)
$ in Thousands |
|
|
9 Months Ended |
12 Months Ended |
|
Aug. 06, 2015
USD ($)
Community
|
Jan. 22, 2015
USD ($)
Community
|
Sep. 30, 2016
USD ($)
|
Sep. 30, 2015
USD ($)
|
Dec. 31, 2014
USD ($)
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
|
|
|
| Proceeds from disposition of assets |
|
|
$ 32
|
$ 43,460
|
|
| Four Property Sale Transaction [Member] |
|
|
|
|
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
|
|
|
| Number of communities sold | Community |
|
4
|
|
|
|
| Proceeds from disposition of assets |
|
$ 35,700
|
|
|
|
| Transaction proceeds |
|
$ 36,500
|
|
|
|
| Aggregate fair value less cost of disposal |
|
|
|
|
$ 600
|
| Sedgwick Sale Transaction [Member] |
|
|
|
|
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
|
|
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| Transaction proceeds |
$ 14,800
|
|
|
|
|
| Number of communities sold | Community |
1
|
|
|
|
|
| Outstanding debt assumed by buyer |
$ 6,800
|
|
|
|
|
| Gain on sale of assets |
6,400
|
|
|
|
|
| Proceeds from disposition of assets |
$ 8,000
|
|
|
|
|