Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
Allowance for doubtful accounts	$ 6,274	$ 5,035
Unamortized debt issuance costs	$ 2,321	$ 2,419
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	69,973,000	69,810,000
Common stock, shares outstanding	69,473,000	69,319,000
Redeemable Convertible Preferred Stock [Member]
Mezzanine equity, par value	$ 0.01	$ 0.01
Mezzanine equity, shares authorized	47,070,000	47,070,000
Mezzanine equity, shares issued	44,170,000	44,170,000
Mezzanine equity, shares outstanding	21,562,000	21,562,000