Related Party Transactions (Table Text Block)

12 Months Ended

Mar. 31, 2018

Related Party Revenue [Abstract]

Related Party Revenue

		Years Ended March 31,
		2018		2017		2016
		(In thousands)
U-Haul interest income revenue from Blackwater	$	3,326	$	4,880	$	6,086
U-Haul management fee revenue from Blackwater		23,577		23,130		21,987
U-Haul management fee revenue from Mercury		6,025		5,945		4,546
	$	32,928	$	33,955	$	32,619

Related Party Cost and Expense

		Years Ended March 31,
		2018		2017		2016
		(In thousands)
U-Haul lease expenses to Blackwater	$	2,684	$	2,740	$	2,648
U-Haul commission expenses to Blackwater		58,595		57,113		54,720
	$	61,279	$	59,853	$	57,368

Due from Related Party, Recap of Assets

		March 31,
		2018		2017
		(In thousands)
U-Haul note receivable from Blackwater	$	–	$	48,098
U-Haul interest receivable from Blackwater		–		5,397
U-Haul receivable from Blackwater		24,034		23,202
U-Haul receivable from Mercury		10,357		9,195
Other (a)		(1,115)		276
	$	33,276	$	86,168

(a) Timing differences for intercompany balances with insurance subsidiaries resulting from the three month difference in reporting periods.