Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
REVENUE
Leasing revenue	$ 65,381	$ 89,145	$ 204,437	$ 235,307
Gain on sale of leased equipment	0	4,589	1,367	19,279
Total revenue	70,613	120,366	227,205	319,932
EXPENSES
Depreciation and amortization expense	24,022	22,736	71,176	63,037
Cost of spare parts and equipment sales	4,125	20,195	13,461	47,192
Write-down of equipment	5,245	6,954	14,371	11,321
General and administrative	16,461	23,257	51,256	66,086
Technical expense	827	1,739	3,422	4,934
Net finance costs:
Interest expense	15,351	16,572	47,136	51,232
Loss on debt extinguishment	0	0	4,688	220
Total net finance costs	15,351	16,572	51,824	51,452
Total expenses	66,031	91,453	205,510	244,022
Earnings from operations	4,582	28,913	21,695	75,910
Earnings from joint ventures	1,457	2,165	2,612	4,787
Income before income taxes	6,039	31,078	24,307	80,697
Income tax expense	3,055	7,005	11,665	18,771
Net income	2,984	24,073	12,642	61,926
Preferred stock dividends	819	820	2,440	2,431
Accretion of preferred stock issuance costs	21	21	63	63
Net income attributable to common shareholders	$ 2,144	$ 23,232	$ 10,139	$ 59,432
Basic weighted average earnings per common share (in dollars per share)	$ 0.36	$ 3.97	$ 1.70	$ 10.19
Diluted weighted average earnings per common share (in dollars per share)	$ 0.35	$ 3.81	$ 1.66	$ 9.83
Basic weighted average common shares outstanding (in shares)	5,972	5,847	5,948	5,831
Diluted weighted average common shares outstanding (in shares)	6,071	6,094	6,098	6,045
Lease rent revenue
REVENUE
Leasing revenue	$ 30,025	$ 49,090	$ 114,874	$ 142,484
Maintenance reserve revenue
REVENUE
Leasing revenue	32,302	39,173	82,816	90,998
Spare parts and equipment sales
REVENUE
Maintenance reserve revenue	2,888	24,409	14,848	56,497
Other revenue
REVENUE
Maintenance reserve revenue	$ 5,398	$ 3,105	$ 13,300	$ 10,674