Revenue Recognition (Table Text Block)	3 Months Ended
	Jun. 30, 2021
Revenue From Contract With Customer [Abstract]
Next five years and thereafter revenue	Years Ending June 30,     2022   2023   2024   2025   2026   Thereafter     (Unaudited)     (In thousands)                           Self-moving equipment rentals $ 6,560 $ – $ – $ – $ – $ – Property lease revenues   16,072   12,621   8,866   6,856   5,398   53,835 Total$ 22,632 $ 12,621 $ 8,866 $ 6,856 $ 5,398 $ 53,835
Disaggregation Of Revenue	Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands)           Revenues recognized over time: $   79,815 $   44,938 Revenues recognized at a point in time:   120,718   104,848 Total revenues recognized under ASC 606   200,533   149,786           Revenues recognized under ASC 842 or 840   1,191,010   774,694 Revenues recognized under ASC 944   46,314   45,775 Revenues recognized under ASC 320   34,999   16,982 Total revenues$  1,472,856 $  987,237