DISCONTINUED OPERATIONS AND ASSETS AND LIABILITIES HELD FOR SALE - Construction (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] - Coventry	3 Months Ended
Mar. 31, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on disposition	$ (600,000.0)
Gain on post-closing adjustment	$ 5,600,000.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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