Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
REVENUE
Other sales and revenue		$ 2,440
Gain on sale of leased equipment	$ 920	2,440	$ 3,716	$ 2,440
Gain on sale of financial assets	0	0	3,116	0
Total revenue	76,891	70,791	223,783	198,388
EXPENSES
Depreciation and amortization expense	22,059	21,274	65,480	68,755
Cost of spare parts and equipment sales	4,204	3,921	16,080	11,008
Write-down of equipment	654	0	21,849	4,113
General and administrative	22,788	18,662	66,820	54,312
Technical expense	2,139	2,524	11,222	6,130
Net finance costs:
Interest expense	16,304	18,325	49,209	50,331
Total net finance costs	16,304	18,325	49,209	50,331
Total expenses	68,148	64,706	230,660	194,649
Income (loss) from operations	8,743	6,085	(6,877)	3,739
Income (loss) from joint ventures	(384)	21	(1,531)	(1,183)
Income (loss) before income taxes	8,359	6,106	(8,408)	2,556
Income tax expense	1,970	3,222	496	946
Net income (loss)	6,389	2,884	(8,904)	1,610
Preferred stock dividends	819	819	2,431	2,431
Accretion of preferred stock issuance costs	21	21	63	63
Net income (loss) attributable to common shareholders	$ 5,549	$ 2,044	$ (11,398)	$ (884)
Basic weighted average income (loss) per common share (in dollars per share)	$ 0.91	$ 0.33	$ (1.88)	$ (0.14)
Diluted weighted average income (loss) per common share (in dollars per share)	$ 0.89	$ 0.32	$ (1.88)	$ (0.14)
Basic weighted average common shares outstanding (in shares)	6,093	6,189	6,058	6,135
Diluted weighted average common shares outstanding (in shares)	6,270	6,363	6,058	6,135
Lease rent revenue
REVENUE
Lease rent and maintenance reserve revenue	$ 39,515	$ 32,908	$ 114,344	$ 96,859
Maintenance reserve revenue
REVENUE
Lease rent and maintenance reserve revenue	20,438	23,659	59,517	60,749
Spare parts and equipment sales
REVENUE
Other sales and revenue	6,966	5,091	20,388	13,226
Asset transition fee
REVENUE
Other sales and revenue	0	0	0	6,256
Other revenue
REVENUE
Other sales and revenue	$ 9,052	$ 6,693	$ 22,702	$ 18,858

Total costs of sales and operating expenses for the period.

Name:	us-gaap_CostsAndExpenses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585