Quarterly report pursuant to Section 13 or 15(d)

Subsequent event (Details)

v3.8.0.1
Subsequent event (Details) - Subsequent Event - $ / shares
May 31, 2018
May 15, 2018
Apr. 06, 2018
Subsequent Event [Line Items]      
Dividend declared date     Apr. 06, 2018
Cash dividend declared (in dollars per share)     $ 0.045
Dividends payable date May 31, 2018    
Dividends payable date of record   May 15, 2018