Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Statement of Cash Flows [Abstract]
Net income (loss)	$ 147,624	$ 178,907
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	265,987	269,957
Amortization of deferred debt cost and other debt related amortization	7,187	6,849
Lease related amortization	15,788	23,835
Share-based compensation expense	5,861	5,471
Net (gain) loss on sale of leasing equipment	(8,614)	(15,988)
Unrealized (gain) loss on derivative instruments	286	2,253
Debt termination expense	31	558
Deferred income taxes	12,037	13,910
Changes in operating assets and liabilities:
Accounts receivable	(20,778)	12,545
Accounts payable and other accrued expenses	(25,752)	(8,860)
Net equipment sold for resale activity	(4,035)	(8,517)
Cash collections on finance lease receivables, net of income earned	46,650	33,680
Other assets	(25,703)	(12,786)
Net cash provided by (used in) operating activities	416,569	501,814
Cash flows from investing activities:
Purchases of leasing equipment and investments in finance leases	(219,788)	(149,986)
Proceeds from sale of equipment, net of selling costs	102,088	106,603
Other	(328)	(130)
Net cash provided by (used in) investing activities	(118,028)	(43,513)
Cash flows from financing activities:
Issuance of preferred shares, net of underwriting discount	145,275	221,790
Purchases of treasury shares	(95,243)	(157,075)
Redemption of common shares for withholding taxes	(2,156)	(978)
Debt issuance costs	0	(5,455)
Borrowings under debt facilities	730,000	1,143,000
Payments under debt facilities and finance lease obligations	(801,044)	(1,472,827)
Dividends paid on preferred shares	(19,908)	(1,833)
Dividends paid on common shares	(72,964)	(78,960)
Distributions to noncontrolling interests	0	2,078
Purchase of noncontrolling interests	0	(103,039)
Other	(590)	0
Net cash provided by (used in) financing activities	(116,630)	(457,455)
Net increase (decrease) in cash, cash equivalents and restricted cash	181,911	846
Cash, cash equivalents and restricted cash, beginning of period	168,972	159,539
Cash, cash equivalents and restricted cash, end of period	350,883	160,385
Supplemental non-cash investing activities:
Interest paid	131,457	160,211
Income taxes paid (refunded)	216	2,216
Right-of-use asset for leased property	196	7,862
Equipment purchases payable	$ 46,569	$ 11,015