Quarterly report pursuant to Section 13 or 15(d)

Subsequent event (Details)

v3.10.0.1
Subsequent event (Details) - Subsequent Event - $ / shares
Aug. 31, 2018
Aug. 15, 2018
Aug. 09, 2018
Jul. 06, 2018
Subsequent Event [Line Items]        
Dividend declared date       Jul. 06, 2018
Cash dividend declared (in dollars per share)       $ 0.045
Dividends payable date Aug. 31, 2018      
Dividends payable date of record   Aug. 15, 2018    
Cash dividend announced (in dollars per share)     $ 0.25