SUMMARIZED CONDENSED CONSOLIDATING INFORMATION Condensed Consolidating Statement of Income (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011
Revenues:
Rental income	$ 8,781	$ 101,742	$ 80,678
Interest income	14	1,428	3,547
Total revenues	8,795	103,170	84,225
Expenses:
Depreciation and amortization	3,134	30,263	26,591
Interest	3,859	37,005	30,319
General and administrative	1,553	16,104	14,473
Impairment	0	2,481	0
(Income) loss in subsidiary	0	0	0
Total expenses	8,546	85,853	71,383
Other income	0	2,196	0
Income before income taxes	249
Income tax expense	242	0	0
Net income	7	19,513	12,842
Net income per common share, diluted	$ 0.00	$ 0.52	$ 0.43
Net income per common share, basic	$ 0.00	$ 0.53	$ 0.43
Weighted-average number of common shares outstanding, basic	25,110,936	37,061,111	30,109,417
Weighted-average number of common shares outstanding, diluted	25,186,988	37,321,517	30,171,225
Parent Company
Revenues:
Rental income	0	0	0
Interest income	12	18	64
Total revenues	12	18	64
Expenses:
Depreciation and amortization	0	49	53
Interest	0	0	0
General and administrative	1,543	14,631	9,905
Impairment		0
(Income) loss in subsidiary	1,780	34,175	22,736
Total expenses	1,543	14,680	9,958
Other income		0
Income before income taxes	249
Income tax expense	242
Net income	7	19,513	12,842
Issuers
Revenues:
Rental income	0	0	0
Interest income	0	0	0
Total revenues	0	0	0
Expenses:
Depreciation and amortization	0	0	0
Interest	2,470	22,392	18,913
General and administrative	0	3	1
Impairment		0
(Income) loss in subsidiary	4,250	56,570	41,650
Total expenses	2,470	22,395	18,914
Other income		0
Income before income taxes	1,780
Income tax expense	0
Net income	1,780	34,175	22,736
Combined Guarantor Subsidiaries
Revenues:
Rental income	5,635	75,606	55,447
Interest income	0	1,410	3,479
Total revenues	5,635	77,016	58,926
Expenses:
Depreciation and amortization	2,031	22,061	18,144
Interest	151	2,724	1,333
General and administrative	0	1,392	4,476
Impairment		0
(Income) loss in subsidiary	227	(3,693)	493
Total expenses	2,182	26,177	23,953
Other income		0
Income before income taxes	3,680
Income tax expense	0
Net income	3,680	47,146	35,466
Combined Non-Guarantor Subsidiaries
Revenues:
Rental income	3,146	26,136	25,231
Interest income	2	0	4
Total revenues	3,148	26,136	25,235
Expenses:
Depreciation and amortization	1,103	8,153	8,394
Interest	1,238	11,889	10,073
General and administrative	10	78	91
Impairment		2,481
(Income) loss in subsidiary	0	0	0
Total expenses	2,351	22,601	18,558
Other income		2,196
Income before income taxes	797
Income tax expense	0
Net income	797	5,731	6,677
Elimination
Revenues:
Rental income	0	0	0
Interest income	0	0	0
Total revenues	0	0	0
Expenses:
Depreciation and amortization	0	0	0
Interest	0	0	0
General and administrative	0	0	0
Impairment		0
(Income) loss in subsidiary	(6,257)	(87,052)	(64,879)
Total expenses	0	0	0
Other income		0
Income before income taxes	(6,257)
Income tax expense	0
Net income	$ (6,257)	$ (87,052)	$ (64,879)