CONTINGENCIES - Condensed Cash Flow (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
OPERATING ACTIVITIES:
Net Cash Provided By Used In Operating Activities	$ 48,155	$ 46,478
INVESTING ACTIVITIES:
Additions to property and equipment	(7,390)	(3,502)
Deferred charges and other assets	(658)	(4)
Net cash provided by (used in) investing activities	(7,968)	(3,361)
FINANCING ACTIVITIES:
Payments of long-term debt	(51,000)	(67,523)
Retirement of senior subordinated notes	0	0
Purchase of the Company's common stock	0	0
Proceeds from issuance of employee stock plan	0	0
Proceeds from the exercise of stock options	42	219
Payment of dividend equivalents on vested restricted stock units	0	0
Realization of tax benefits for payment of dividend equivalents	0	0
Net Cash Provided By Used In Financing Activities	(36,373)	(45,471)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	3,814	(2,354)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	12,231	8,923
CASH AND CASH EQUIVALENTS, END OF PERIOD	$ 16,045	$ 6,569