GOODWILL AND INTANGIBLE ASSETS (Intangible) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Finite-lived intangible assets
Weighted Average Amortization Period	13 years
Cost	$ 56,953		$ 56,453
Accumulated Amortization	15,775		14,788
Net Value	41,178		41,665
Indefinite-lived intangible assets
Net Value	35,122		35,122
Total intangible assets
Cost	92,075		91,575
Net Value	76,300		76,787
Amortization expense on intangible assets
Intangible amortization expense	987	$ 1,148
Approximate annual amortization expense on intangible assets expected for years 2016 - 2020	4,000
Trade name
Indefinite-lived intangible assets
Net Value	32,300		32,300
Other
Indefinite-lived intangible assets
Net Value	$ 2,822		2,822
Customer relationships
Finite-lived intangible assets
Weighted Average Amortization Period	14 years
Cost	$ 52,721		52,221
Accumulated Amortization	12,280		11,331
Net Value	$ 40,441		40,890
Driver network
Finite-lived intangible assets
Weighted Average Amortization Period	3 years
Cost	$ 3,200		3,200
Accumulated Amortization	$ 3,200		3,200
Other
Finite-lived intangible assets
Weighted Average Amortization Period	8 years
Cost	$ 1,032		1,032
Accumulated Amortization	295		257
Net Value	$ 737		$ 775