Condensed Consolidated Statements Of Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
REVENUE	$ 44,410	$ 51,556	$ 143,305	$ 170,131
EXPENSES:
Depreciation and amortization	32,085	37,703	89,252	106,924
Cost of sales	188	104	290	352
Selling, general and administrative	5,912	4,845	19,553	20,642
Total operating expenses	38,185	42,652	109,095	127,918
INCOME FROM OPERATIONS	6,225	8,904	34,210	42,213
Interest expense, net	(6,202)	(7,266)	(21,655)	(21,738)
Foreign currency exchange gains (losses)	714	1,051	(1,104)	1,036
Loss on early extinguishment of debt	0	0	(1,504)	0
Gain on sale of marketable securities	0	0	0	230
Other income	16	227	17	710
Income before income taxes	753	2,916	9,964	22,451
Provision for income taxes	516	1,787	1,621	5,346
NET INCOME	$ 237	$ 1,129	$ 8,343	$ 17,105