Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2020	Mar. 31, 2020
Condensed Consolidated Balance Sheets
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	450,000,000	450,000,000
Common stock, shares issued	59,434,919	59,083,290
Common stock, shares outstanding (net of treasury stock)	51,030,637	50,827,952
Treasury stock, shares at cost	8,404,282	8,255,338