Consolidated Statements of Cash Flows $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)
Statement of Cash Flows [Abstract]
Net income (loss)	$ 77,036	$ 92,811
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	132,695	134,609
Amortization of deferred debt cost and other debt related amortization	3,595	3,601
Lease related amortization	7,054	12,254
Share-based compensation expense	1,605	1,818
Net (gain) loss on sale of leasing equipment	(4,077)	(8,469)
Unrealized (gain) loss on derivative instruments	297	986
Debt termination expense	31	0
Deferred income taxes	5,505	7,116
Changes in operating assets and liabilities:
Accounts receivable	(3,775)	41,421
Accounts payable and other accrued expenses	(15,111)	3,019
Net equipment sold for resale activity	1,435	(8,803)
Cash collections on finance lease receivables, net of income earned	15,466	17,125
Other assets	(23,796)	(1,757)
Net cash provided by (used in) operating activities	197,960	295,731
Cash flows from investing activities:
Purchases of leasing equipment and investments in finance leases	(62,406)	(43,981)
Proceeds from sale of equipment, net of selling costs	49,498	49,947
Other	(216)	26
Net cash provided by (used in) investing activities	(13,124)	5,992
Cash flows from financing activities:
Issuance of preferred shares, net of underwriting discount	145,275	83,058
Purchases of treasury shares	(34,357)	(82,266)
Redemption of common shares for withholding taxes	(2,156)	(978)
Debt issuance costs	0	(1,962)
Borrowings under debt facilities	530,000	125,000
Payments under debt facilities and finance lease obligations	(425,073)	(293,290)
Dividends paid on preferred shares	(9,395)	0
Dividends paid on common shares	(37,110)	(40,427)
Distributions to noncontrolling interests	0	2,078
Purchase of noncontrolling interests	0	(71,000)
Other	(410)	0
Net cash provided by (used in) financing activities	166,774	(283,943)
Net increase (decrease) in cash, cash equivalents and restricted cash	351,610	17,780
Cash, cash equivalents and restricted cash, beginning of period	168,972	159,539
Cash, cash equivalents and restricted cash, end of period	520,582	177,319
Supplemental non-cash investing activities:
Interest paid	53,795	66,106
Income taxes paid (refunded)	139	155
Right-of-use asset for leased property	0	8,289
Equipment purchases payable	$ 29,109	$ 38,463