Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income	$ 12,642	$ 61,926
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	71,176	63,037
Write-down of equipment	14,371	11,321
Stock-based compensation expenses	8,245	5,588
Amortization of deferred costs	3,984	4,965
Allowances and provisions	280	348
Gain on sale of leased equipment	(1,367)	(19,279)
Income from joint ventures	(2,612)	(4,787)
Loss on debt extinguishment	4,688	220
Loss on sale of note receivable	79	0
Loss on disposal of property, equipment and furnishings	0	36
Deferred income taxes	11,248	19,234
Changes in assets and liabilities:
Receivables	(18,464)	(10,968)
Distributions received from joint ventures	7,200	3,300
Inventory	5,737	23,448
Other assets	355	(1,262)
Accounts payable and accrued expenses	(19,092)	891
Maintenance reserves	(10,660)	14,914
Security deposits	520	(2,604)
Unearned revenue	(4,862)	489
Net cash provided by operating activities	83,468	170,817
Cash flows from investing activities:
Proceeds from sale of equipment (net of selling expenses)	17,665	189,054
Proceeds from sale of note receivable	8,431	0
Issuance of notes receivable	(135,955)	(42,857)
Payments received on notes receivable	6,083	1,776
Capital contributions to joint ventures	0	(5,013)
Purchase of equipment held for operating lease	(82,027)	(220,828)
Purchase of property, equipment and furnishings	(2,719)	(4,971)
Net cash used in investing activities	(188,522)	(82,839)
Cash flows from financing activities:
Proceeds from debt obligations	690,200	261,120
Debt issuance costs	(6,065)	(2,840)
Principal payments on debt obligations	(477,802)	(340,334)
Debt prepayment costs	(2,373)	0
Proceeds from shares issued under stock compensation plans	428	335
Cancellation of restricted stock units in satisfaction of withholding tax	(1,194)	(1,460)
Repurchase of common stock	(1,510)	(3,567)
Preferred stock dividends	(2,440)	(2,458)
Net cash provided by (used in) financing activities	199,244	(89,204)
Increase (Decrease) in cash, cash equivalents and restricted cash	94,190	(1,226)
Cash, cash equivalents and restricted cash at beginning of period	63,668	81,949
Cash, cash equivalents and restricted cash at end of period	157,858	80,723
Net cash paid for:
Interest	41,317	48,545
Income Taxes	374	302
Supplemental disclosures of non-cash activities:
Liabilities assumed in purchase of equipment held for operating lease	(5,680)	0
Transfers from Equipment held for operating lease to Equipment held for sale	2,793	9,988
Transfers from Equipment held for operating lease to Spare parts inventory	18,964	19,242
Accrued preferred stock dividends	$ 0	$ 27