Condensed Consolidated Statements Of Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
REVENUE	$ 47,334	$ 47,544	$ 104,387	$ 98,895
EXPENSES:
Depreciation and amortization	29,771	27,829	67,629	57,167
Cost of sales	127	63	253	102
Selling, general and administrative	6,893	6,254	14,318	13,641
Total operating expenses	36,791	34,146	82,200	70,910
INCOME FROM OPERATIONS	10,543	13,398	22,187	27,985
Interest expense, net	(6,211)	(6,138)	(12,418)	(15,453)
Foreign currency exchange gains (losses)	831	(1,171)	(443)	(1,818)
Loss on early extinguishment of debt	0	0	0	(1,504)
Other income	73	0	59	1
Income before income taxes	5,236	6,089	9,385	9,211
Provision (benefit) for income taxes	2,661	(279)	4,918	1,105
NET INCOME	$ 2,575	$ 6,368	$ 4,467	$ 8,106