Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 9,658	$ 37,853
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	47,154	40,301
Write-down of equipment	9,126	4,367
Stock-based compensation expenses	5,132	3,387
Amortization of deferred costs	2,790	3,420
Allowances and provisions	317	715
Gain on sale of leased equipment	(1,367)	(14,690)
Income from joint ventures	(1,155)	(2,622)
Loss on debt extinguishment	4,688	220
Loss on disposal of property, equipment and furnishings	0	36
Deferred income taxes	8,381	12,101
Changes in assets and liabilities:
Receivables	(17,936)	(24,345)
Distributions received from joint ventures	0	3,300
Inventory	4,015	17,658
Other assets	(562)	(3,206)
Accounts payable and accrued expenses	(19,551)	(6,307)
Maintenance reserves	(6,691)	22,503
Security deposits	2,272	(2,829)
Unearned revenue	(3,312)	(321)
Net cash provided by operating activities	42,959	91,541
Cash flows from investing activities:
Proceeds from sale of equipment (net of selling expenses)	17,665	157,989
Issuance of notes receivable	(135,955)	(30,783)
Payments received on notes receivable	3,738	421
Capital contributions to joint ventures	0	(5,013)
Purchase of equipment held for operating lease	(76,982)	(145,300)
Purchase of property, equipment and furnishings	(2,178)	(1,843)
Net cash used in investing activities	(193,712)	(24,529)
Cash flows from financing activities:
Proceeds from debt obligations	690,200	169,120
Debt issuance costs	(5,806)	(2,840)
Principal payments on debt obligations	(419,526)	(220,705)
Debt prepayment costs	(2,373)	0
Proceeds from shares issued under stock compensation plans	200	163
Cancellation of restricted stock units in satisfaction of withholding tax	(1,194)	(1,460)
Repurchase of common stock	(1,379)	(3,567)
Preferred stock dividends	(1,629)	(1,620)
Net cash provided by (used in) financing activities	258,493	(60,909)
Increase in cash, cash equivalents and restricted cash	107,740	6,103
Cash, cash equivalents and restricted cash at beginning of period	63,668	81,949
Cash, cash equivalents and restricted cash at end of period	171,408	88,052
Net cash paid for:
Interest	28,486	32,948
Income Taxes	87	81
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	0	3,450
Transfers from Equipment held for operating lease to Spare parts inventory	12,926	14,630
Accrued preferred stock dividends	9	9
Accrued share repurchases	$ 111	$ 0