XML 49 R37.htm IDEA: XBRL DOCUMENT v3.10.0.1
Subsequent Event - Additional Information (Detail) - Scenario Forecast [Member]
Sep. 30, 2018
$ / shares
Subsequent Event [Line Items]  
Dividend per share $ 0.15
Dividend declared per share, payable date Sep. 14, 2018
Dividend declared per share, record date Aug. 31, 2018