Accounting Policies (Table Text Block)	12 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]
Inventories, net	March 31, 2020 2019 (In thousands) Truck and trailer parts and accessories (a) $ 88,138 $ 94,344 Hitches and towing components (b) 23,070 20,113 Moving supplies and propane (b) 11,824 10,356 Subtotal 123,032 124,813 Less: LIFO reserves (18,886) (18,987) Less: excess and obsolete reserves (3,063) (2,322) Total $ 101,083 $ 103,504 (a) Primarily held for internal usage, including equipment manufacturing and repair (b) Primarily held for retail sales

The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-URI http://asc.fasb.org/topic&trid=2126998

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