Revenue Recognition (Table Text Block)	3 Months Ended	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Revenue From Contract With Customer [Abstract]
Disaggregation Of Revenue		Year Ending December 31,     2020   2021   2022   2023   2024   Thereafter     (Unaudited)     (In thousands)                           Self-moving equipment rentals $ 3,101 $ – $ – $ – $ – $ – Property lease revenues   21,081   17,122   13,577   10,414   7,458   58,598 Total $ 24,182 $ 17,122 $ 13,577 $ 10,414 $ 7,458 $ 58,598
Next five years and thereafter revenue	Quarter Ended December 31,     2019   2018     (Unaudited)     (In thousands)           Revenues recognized over time: $ 31,695 $ 662,498 Revenues recognized at a point in time:   64,802   65,372 Total revenues recognized under ASC 606   96,497   727,870           Revenues recognized under ASC 842 or 840   745,378   102,863 Revenues recognized under ASC 944   52,223   56,147 Revenues recognized under ASC 320   33,782   32,211 Total revenues $ 927,880 $ 919,091	Nine Months Ended December 31,     2019   2018     (Unaudited)     (In thousands)           Revenues recognized over time: $ 119,760 $ 2,255,541 Revenues recognized at a point in time:   242,238   240,281 Total revenues recognized under ASC 606   361,998   2,495,822           Revenues recognized under ASC 842 or 840   2,540,372   301,551 Revenues recognized under ASC 944   152,344   160,759 Revenues recognized under ASC 320   102,629   85,043 Total revenues $ 3,157,343 $ 3,043,175