CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current Assets:
Cash and Cash Equivalents	$ 212,858	$ 309,338
Restricted Cash	4,132	8,447
Investments	76,724	6,283
Accounts Receivable, net of an allowance for credit losses of $197 and $250, respectively	38,479	30,156
Short-term Lessor Maintenance Deposits	7,394	5,505
Inventory, net of a reserve for obsolescence of $1,434 and $1,275, respectively	6,320	5,405
Prepaid Expenses	16,245	8,511
Other Current Assets	1,186	1,798
Total Current Assets	363,338	375,443
Property & Equipment, net:
Finance Lease Assets	251,887	209,457
Total Property & Equipment	889,788	695,587
Accumulated Depreciation & Amortization	(144,165)
Total Property & Equipment, net	745,623	578,518
Other Assets:
Goodwill	222,223	222,223
Other Intangible Assets, net	87,110	89,110
Operating Lease Right-of-use Assets	27,019	61,658
Aircraft Deposits	11,520	10,021
Long-term Lessor Maintenance Deposits	25,813	20,346
Deferred Tax Asset	15,813	17,608
Other Assets	8,279	5,495
Total Other Assets	397,777	426,461
Total Assets	1,506,738	1,380,422
Current Liabilities:
Accounts Payable	58,051	39,805
Accrued Salaries, Wages, and Benefits	25,342	28,527
Accrued Transportation Taxes	14,549	12,736
Air Traffic Liabilities	123,958	118,562
Over-market Liabilities	3,063	4,309
Finance Lease Obligations	29,392	11,705
Loyalty Program Liabilities	11,548	11,451
Operating Lease Obligations	10,172	17,231
Current Maturities of Long-term Debt	43,810	29,412
Income Tax Receivable Agreement Liability	1,100	0
Other Current Liabilities	10,376	7,913
Total Current Liabilities	331,361	281,651
Long-term Liabilities:
Over-market Liabilities	3,964	10,428
Finance Lease Obligations	220,229	180,450
Loyalty Program Liabilities	5,056	8,267
Operating Lease Obligations	21,410	58,810
Long-term Debt	319,733	248,014
Income Tax Receivable Agreement Liability	106,200	98,800
Other Long-term Liabilities	2,897	3,413
Total Long-term Liabilities	679,489	608,182
Total Liabilities	1,010,850	889,833
Commitments and Contingencies (see Note 13)
Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Common stock, with $0.01 par value, 995,000,000 shares authorized, 58,145,724 and 57,872,452 issued at June 30, 2022 and December 31, 2021, respectively	581	579
Preferred Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Preferred stock, with $0.01 par value, 5,000,000 shares authorized, no shares issued and outstanding at June 30, 2022 and December 31, 2021	0	0
Treasury stock, at cost, 1,823 shares held at June 30, 2022 and no shares held at December 31, 2021	52	0
Additional Paid-In Capital	491,492	485,638
Retained Earnings	(4,087)	(4,372)
Accumulated Other Comprehensive Loss	(220)	0
Total Stockholders' Equity	495,888	490,589
Total Liabilities and Stockholders' Equity	1,506,738	1,380,422
Aircraft and Flight Equipment
Property & Equipment, net:
Aircraft and Flight Equipment	589,690	447,319
Ground Equipment and Leasehold Improvements
Property & Equipment, net:
Aircraft and Flight Equipment	27,092	20,876
Computer Hardware and Software
Property & Equipment, net:
Aircraft and Flight Equipment	10,161	8,785
Rotable Parts
Property & Equipment, net:
Aircraft and Flight Equipment	$ 10,958	$ 9,150