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
Leasing revenues:
Operating leases	$ 320,352	$ 326,800	$ 946,579	$ 985,592
Finance leases	7,405	9,868	24,043	30,501
Total leasing revenues	327,757	336,668	970,622	1,016,093
Equipment trading revenues	26,094	25,796	58,377	66,833
Equipment trading expenses	(22,225)	(21,646)	(50,555)	(54,600)
Trading margin	3,869	4,150	7,822	12,233
Net gain on sale of leasing equipment	10,737	6,196	19,351	22,184
Operating expenses:
Depreciation and amortization	136,248	133,367	402,235	403,324
Direct operating expenses	25,992	20,457	78,859	55,356
Administrative expenses	21,395	18,496	61,092	56,671
Provision (reversal) for doubtful accounts	(45)	126	4,608	505
Total operating expenses	183,590	172,446	546,794	515,856
Operating income (loss)	158,773	174,568	451,001	534,654
Other expenses:
Interest and debt expense	62,776	77,401	198,652	243,181
Realized (gain) loss on derivative instruments, net	0	(539)	(224)	(1,912)
Unrealized (gain) loss on derivative instruments, net	0	504	286	2,757
Debt termination expense	24,345	1,870	24,376	2,428
Other (income) expense, net	(631)	(116)	(4,241)	(2,047)
Total other expenses	86,490	79,120	218,849	244,407
Income (loss) before income taxes	72,283	95,448	232,152	290,247
Income tax expense (benefit)	15,825	4,845	28,070	20,737
Net income (loss)	56,458	90,603	204,082	269,510
Less: income (loss) attributable to noncontrolling interest	0	0	0	592
Less: dividend on preferred shares	10,512	4,708	30,850	7,038
Net income (loss) attributable to common shareholders	$ 45,946	$ 85,895	$ 173,232	$ 261,880
Net income per common share—Basic	$ 0.67	$ 1.18	$ 2.49	$ 3.49
Net income per common share—Diluted	0.67	1.17	2.48	3.47
Cash dividends paid per common share	$ 0.52	$ 0.52	$ 1.56	$ 1.56
Weighted average number of common shares outstanding—Basic	68,223	72,689	69,693	74,984
Dilutive restricted shares	359	560	289	573
Weighted average number of common shares outstanding—Diluted	68,582	73,249	69,982	75,557