Note 8 - Fixed assets (Detail) - Components of Fixed Assets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Cost	$ 296,112	$ 253,018
Accumulated Depreciation	189,101	158,868
Net	107,011	94,150
Land [Member]
Cost	3,093	3,093
Net	3,093	3,093
Building [Member]
Cost	14,507	14,442
Accumulated Depreciation	4,953	4,455
Net	9,554	9,987
Vehicles [Member]
Cost	28,123	26,030
Accumulated Depreciation	21,494	19,827
Net	6,629	6,203
Furniture And Equipment [Member]
Cost	71,906	63,504
Accumulated Depreciation	51,047	44,305
Net	20,859	19,199
Computer Equipment And Software [Member]
Cost	118,934	98,535
Accumulated Depreciation	81,316	66,123
Net	37,618	32,412
Leasehold Improvements [Member]
Cost	59,549	47,414
Accumulated Depreciation	30,291	24,158
Net	$ 29,258	$ 23,256

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