Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 37,853	$ 15,443
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	40,301	35,739
Write-down of equipment	4,367	3,578
Stock-based compensation expenses	3,387	2,585
Amortization of deferred costs	3,420	2,349
Allowances and provisions	715	572
Gain on sale of leased equipment	(14,690)	(597)
Income from joint ventures	(2,622)	(1,063)
Loss on debt extinguishment	220	0
Loss on disposal of property, equipment and furnishings	36	0
Income taxes	12,101	6,220
Changes in assets and liabilities:
Receivables	(24,345)	(1,963)
Distributions received from joint ventures	3,300	0
Inventory	17,658	19,148
Other assets	(3,206)	(2,832)
Accounts payable and accrued expenses	(6,307)	(11,747)
Maintenance reserves	22,503	12,225
Security deposits	(2,829)	1,841
Unearned revenue	(321)	479
Net cash provided by operating activities	91,541	81,977
Cash flows from investing activities:
Proceeds from sale of equipment (net of selling expenses)	157,989	28,210
Issuance of notes receivables	(30,783)	0
Payments received on notes receivables	421	0
Capital contributions to joint ventures	(5,013)	0
Purchase of equipment held for operating lease	(145,300)	(243,107)
Purchase of property, equipment and furnishings	(1,843)	(794)
Net cash used in investing activities	(24,529)	(215,691)
Cash flows from financing activities:
Proceeds from issuance of debt obligations	169,120	199,000
Debt issuance costs	(2,840)	0
Principal payments on debt obligations	(220,705)	(53,268)
Proceeds from shares issued under stock compensation plans	163	118
Cancellation of restricted stock units in satisfaction of withholding tax	(1,460)	(848)
Repurchase of common stock	(3,567)	(10,183)
Preferred stock dividends	(1,620)	(1,611)
Net cash (used in) provided by financing activities	(60,909)	133,208
Increase/(Decrease) in cash, cash equivalents and restricted cash	6,103	(506)
Cash, cash equivalents and restricted cash at beginning of period	81,949	47,324
Cash, cash equivalents and restricted cash at end of period	88,052	46,818
Net cash paid for:
Interest	32,948	29,072
Income Taxes	81	1,065
Supplemental disclosures of non-cash activities:
Transfers from Equipment held for operating lease to Equipment held for sale	3,450	13,479
Transfers from Equipment held for operating lease to Spare parts inventory	14,630	0
Transfers from Equipment held for sale to Spare parts inventory	0	6,907
Accrued preferred stock dividends	$ 677	$ 784