Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Tour revenues	$ 1,019	$ 100,983	$ 81,991	$ 267,294
Operating expenses:
Cost of tours	8,075	48,294	62,988	124,831
General and administrative	9,145	15,266	36,170	47,615
Selling and marketing	2,128	15,531	18,413	42,100
Depreciation and amortization	8,485	6,233	23,728	18,603
Total operating expenses	27,833	85,324	141,299	233,149
Operating (loss) income	(26,814)	15,659	(59,308)	34,145
Other (expense) income:
Interest expense, net	(4,529)	(3,214)	(11,763)	(9,391)
Gain (loss) on foreign currency	989	(2,338)	(6,334)	(1,181)
Other expense	(74)	(30)	(188)	(79)
Total other expense	(3,614)	(5,582)	(18,285)	(10,651)
(Loss) income before income taxes	(30,428)	10,077	(77,593)	23,494
Income tax (benefit) expense	(2,893)	7,351	(7,664)	4,838
Net (loss) income	(27,535)	2,726	(69,929)	18,656
Net (loss) income attributable to noncontrolling interest	(156)	565	(956)	834
Net (loss) income attributable to Lindblad Expeditions Holdings, Inc.	(27,379)	2,161	(68,973)	17,822
Non-cash deemed dividend to warrant holders	0	2,654	0	2,654
Net (loss) income available to stockholders	$ (27,379)	$ (493)	$ (68,973)	$ 15,168
Weighted average shares outstanding
Basic (in shares)	49,779,525	48,863,506	49,715,663	46,704,634
Diluted (in shares)	49,779,525	48,863,506	49,715,663	49,091,370
Undistributed (loss) earnings per share available to stockholders
Basic (in dollars per share)	$ (0.56)	$ (0.01)	$ (1.40)	$ 0.32
Diluted (in dollars per share)	$ (0.56)	$ (0.01)	$ (1.40)	$ 0.31