Stockholders' Equity (Narratives) (Details)	9 Months Ended
	Dec. 31, 2018 $ / shares
Declared dividend, one
Dividends Declared:
Dividends payable, date declared	Dec. 05, 2018
Dividends payable, amount per share	$ 0.5
Dividends payable, date of record	Dec. 20, 2018
Dividends payable, date to be paid	Jan. 07, 2019
Declared dividend, two
Dividends Declared:
Dividends payable, date declared	Aug. 23, 2018
Dividends payable, amount per share	$ 0.5
Dividends payable, date of record	Sep. 10, 2018
Dividends payable, date to be paid	Sep. 24, 2018
Declared dividend, three
Dividends Declared:
Dividends payable, date declared	Jun. 06, 2018
Dividends payable, amount per share	$ 0.5
Dividends payable, date of record	Jun. 21, 2018
Dividends payable, date to be paid	Jul. 05, 2018
Declared dividend, four
Dividends Declared:
Dividends payable, date declared	Mar. 08, 2018
Dividends payable, amount per share	$ 0.5
Dividends payable, date of record	Mar. 23, 2018
Dividends payable, date to be paid	Apr. 06, 2018