Assets and Associated Liabilities Held for Sale and Discontinued Operations - Summary of Income (Loss) from Discontinued Operations (Parenthetical) (Detail) - USD ($) $ in Millions |
1 Months Ended | 9 Months Ended |
---|---|---|
Aug. 31, 2019 |
Sep. 30, 2018 |
|
Discontinued Operations And Disposal Groups [Abstract] | ||
Unamortized loan costs written-off | $ 0.1 | $ 3.3 |