Income Taxes - Additional Information (Details)	9 Months Ended
Sep. 30, 2017
TRS
Income Tax Contingency [Line Items]
Percentage of voting interests of gross deferred tax asset	100.00%

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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Period Type:	duration