Non-controlling Interests - Additional Information (Detail) - Operating Partnership [Member]	Jun. 30, 2019
Noncontrolling Interest [Line Items]
Percentage of operating partnership interest held by parent	66.00%
ESL [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage held by related party	34.00%

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.

No definition available.

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