Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 156,845	$ 87,177
Restricted cash	30,499	28,847
Short-term securities	0	13,591
Prepaid expenses and other current assets	57,158	53,704
Total current assets	244,502	183,319
Property and equipment, net	526,002	539,406
Goodwill	42,017	42,017
Intangibles, net	9,412	11,219
Other long-term assets	9,364	12,014
Total assets	831,297	787,975
Current Liabilities:
Unearned passenger revenues	252,199	245,101
Accounts payable and accrued expenses	65,055	71,019
Long-term debt - current	47	23,337
Lease liabilities - current	1,923	1,663
Total current liabilities	319,224	341,120
Long-term debt, less current portion	621,778	529,452
Deferred tax liabilities	2,118	0
Other long-term liabilities	1,943	3,049
Total liabilities	945,063	873,621
Commitments and contingencies
Redeemable noncontrolling interests	37,784	27,886
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests	111,298	97,029
STOCKHOLDERS’ DEFICIT
Preferred stock, $0.0001 par value, 1,000,000 shares authorized; 62,000 Series A shares issued and outstanding as of December 31, 2023 and December 31, 2022, respectively	0	0
Common stock, $0.0001 par value, 200,000,000 shares authorized; 53,390,082 and 53,177,437 issued, 53,332,150 and 53,110,132 outstanding as of December 31, 2023 and December 31, 2022, respectively	5	5
Additional paid-in capital	97,139	83,850
Accumulated deficit	(322,208)	(266,530)
Total stockholders' deficit	(225,064)	(182,675)
Total liabilities, mezzanine equity and stockholders' deficit	831,297	787,975
Series A Redeemable Convertible Preferred Stock [Member]
Current Liabilities:
Series A redeemable convertible preferred stock, 165,000 shares authorized; 62,000 shares issued and outstanding as of December 31, 2023 and December 31, 2022, respectively	$ 73,514	$ 69,143