Fixed Assets (Details) (Legg Mason Group, USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Mar. 31, 2012
Fixed assets:
Total cost	$ 621,352	$ 603,499
Less: accumulated depreciation and amortization	(394,611)	(364,088)
Fixed assets, net	226,741	239,411
Equipment
Fixed assets:
Total cost	155,662	155,173
Software
Fixed assets:
Total cost	221,522	205,760
Leasehold improvements
Fixed assets:
Total cost	$ 244,168	$ 242,566

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

+ References+ Details

Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References+ Details

- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References+ Details