Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Leasing revenues:
Operating leases	$ 313,423	$ 328,370	$ 626,227	$ 658,792
Finance leases	7,974	10,196	16,638	20,633
Total leasing revenues	321,397	338,566	642,865	679,425
Equipment trading revenues	16,903	23,209	32,283	41,037
Equipment trading expenses	(14,883)	(18,713)	(28,330)	(32,954)
Trading margin	2,020	4,496	3,953	8,083
Net gain on sale of leasing equipment	4,537	7,519	8,614	15,988
Operating expenses:
Depreciation and amortization	133,292	135,348	265,987	269,957
Direct operating expenses	29,619	18,097	52,867	34,899
Administrative expenses	20,472	19,988	39,697	38,175
Provision (reversal) for doubtful accounts	374	521	4,653	379
Total operating expenses	183,757	173,954	363,204	343,410
Operating income (loss)	144,197	176,627	292,228	360,086
Other expenses:
Interest and debt expense	66,874	82,260	135,876	165,780
Realized (gain) loss on derivative instruments, net	11	(669)	(224)	(1,373)
Unrealized (gain) loss on derivative instruments, net	(11)	1,267	286	2,253
Debt termination expense	0	558	31	558
Other (income) expense, net	36	(927)	(3,610)	(1,931)
Total other expenses	66,910	82,489	132,359	165,287
Income (loss) before income taxes	77,287	94,138	159,869	194,799
Income tax expense (benefit)	6,699	8,042	12,245	15,892
Net income (loss)	70,588	86,096	147,624	178,907
Less: income (loss) attributable to noncontrolling interest	0	0	0	592
Less: dividend on preferred shares	10,513	2,025	20,338	2,330
Net income (loss) attributable to common shareholders	$ 60,075	$ 84,071	$ 127,286	$ 175,985
Net income per common share—Basic	$ 0.87	$ 1.13	$ 1.81	$ 2.31
Net income per common share—Diluted	0.86	1.12	1.80	2.29
Cash dividends paid per common share	$ 0.52	$ 0.52	$ 1.04	$ 1.04
Weighted average number of common shares outstanding—Basic	69,275	74,598	70,436	76,151
Dilutive restricted shares	261	617	262	583
Weighted average number of common shares outstanding—Diluted	69,536	75,215	70,698	76,734