SCHEDULE I - Parent Company Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents		$ 6,720	$ 11,688
Equipment held for operating lease, less accumulated depreciation		1,650,918	1,673,135
Maintenance rights		3,133	14,763
Equipment held for sale		120	789
Receivables, net of allowances		24,059	23,270
Spare parts inventory		41,759	48,874
Deferred income taxes		20,676	45,561
Investments		57,936	47,941
Property, equipment & furnishings, less accumulated depreciation		31,520	27,679
Intangible assets, net		1,312	1,379
Notes receivable		38,145	238
Prepaid Deposits		10,600	1,900
Other assets, net		28,038	14,926
Total assets	[1]	1,940,608	1,934,943
Liabilities:
Accounts payable and accrued expenses		45,648	42,939
Debt obligations		1,251,006	1,337,349
Maintenance reserves		106,870	94,522
Security deposits		20,569	28,047
Unearned revenue		6,121	5,460
Total liabilities	[2]	1,540,632	1,598,602
Redeemable preferred stock ($0.01 par value, 2,500 shares authorized; 2,500 shares issued and outstanding at December 31, 2019 and 2018, respectively)		49,638	49,554
Shareholders’ equity:
Common stock ($0.01 par value, 20,000 shares authorized; 6,356 and 6,176 shares issued and outstanding at December 31, 2019 and 2018, respectively)		64	62
Paid-in capital in excess of par		4,557	0
Retained earnings		348,965	286,623
Accumulated other comprehensive income, net of income tax benefit		(3,248)	102
Total shareholders’ equity		350,338	286,787	$ 258,910
Total liabilities, redeemable preferred stock and shareholders' equity		1,940,608	1,934,943
Parent Company
ASSETS
Cash and cash equivalents		1,187	5,302
Equipment held for operating lease, less accumulated depreciation		612,808	618,167
Maintenance rights		0	3,296
Equipment held for sale		120	701
Receivables, net of allowances		3,015	3,468
Spare parts inventory		3,466	483
Due from affiliates, net		5,410	14,877
Deferred income taxes		5,607	13,896
Investments		57,936	47,941
Investment in subsidiaries		156,664	141,792
Property, equipment & furnishings, less accumulated depreciation		15,998	15,077
Intangible assets, net		271	271
Notes receivable		38,145	238
Prepaid Deposits		9,134	1,383
Other assets, net		13,398	10,528
Total assets		923,159	877,420
Liabilities:
Accounts payable and accrued expenses		33,182	27,128
Due to affiliates, net		62,170	40,187
Debt obligations		400,725	434,053
Maintenance reserves		18,464	27,329
Security deposits		6,399	10,692
Unearned revenue		2,243	1,690
Total liabilities		523,183	541,079
Redeemable preferred stock ($0.01 par value, 2,500 shares authorized; 2,500 shares issued and outstanding at December 31, 2019 and 2018, respectively)		49,638	49,554
Shareholders’ equity:
Common stock ($0.01 par value, 20,000 shares authorized; 6,356 and 6,176 shares issued and outstanding at December 31, 2019 and 2018, respectively)		64	62
Paid-in capital in excess of par		4,557	0
Retained earnings		348,965	286,623
Accumulated other comprehensive income, net of income tax benefit		(3,248)	102
Total shareholders’ equity		350,338	286,787
Total liabilities, redeemable preferred stock and shareholders' equity		$ 923,159	$ 877,420

[1] Total assets at December 31, 2019 and December 31, 2018 include the following assets of variable interest entity’s (“VIE’s”) that can only be used to settle the liabilities of the VIE’s: Cash, $134 and $656; Restricted Cash, $56,523 and $70,261, Equipment, $1,004,851 and $1,032,599; Maintenance Rights, $3,133 and $11,466; Inventory, $2,832 and $4,921; and Other, $668 and $1,075 respectively.

[2] Total liabilities at December 31, 2019 and December 31, 2018 include the following liabilities of VIE’s for which the VIE’s creditors do not have recourse to Willis Lease Finance Corporation: Debt obligations, $842,996 and $903,296, respectively.