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Sale-Leaseback of Long-Lived Assets - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Aug. 31, 2019
Sep. 30, 2019
Sep. 30, 2019
Net Cash proceeds on sale of buildings $ 41,179    
Gain on sale of long-lived assets $ 6,773 $ 6,773 $ 6,773