Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
REVENUE
Lease rent revenue	$ 46,984	$ 33,474	$ 129,710	$ 95,045
Revenue	19,370	20,370	56,855	64,212
Spare parts and equipment sales	8,354	9,294	21,701	41,273
Gain on sale of leased equipment	1,256	174	2,142	4,684
Other revenue	2,010	2,549	5,762	6,439
Total revenue	77,974	65,861	216,170	211,653
EXPENSES
Depreciation and amortization expense	19,861	16,142	55,600	48,786
Cost of spare parts and equipment sales	5,848	7,148	16,537	32,121
Write-down of equipment	1,215	6,226	4,793	19,668
General and administrative	18,124	14,308	50,517	40,574
Technical expense	2,290	2,605	9,199	7,345
Interest expense	17,885	14,220	46,617	36,398
Total expenses	65,223	60,649	183,263	184,892
Earnings from operations	12,751	5,212	32,907	26,761
Earnings from joint ventures	506	3,040	1,569	6,055
Income before income taxes	13,257	8,252	34,476	32,816
Income tax expense	3,583	2,960	9,359	13,367
Net income	9,674	5,292	25,117	19,449
Preferred stock dividends	819	344	2,431	988
Accretion of preferred stock issuance costs	21	9	62	25
Net income attributable to common shareholders	$ 8,834	$ 4,939	$ 22,624	$ 18,436
Basic weighted average earnings per common share (in dollars per share)	$ 1.50	$ 0.82	$ 3.80	$ 3.04
Diluted weighted average earnings per common share (in dollars per share)	$ 1.47	$ 0.80	$ 3.72	$ 2.97
Basic weighted average common shares outstanding (in shares)	5,900	6,055	5,960	6,068
Diluted weighted average common shares outstanding (in shares)	6,004	6,184	6,083	6,215