CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash flows from Operating Activities
Net Income	$ 44,664	$ 39,467
Adjustments to reconcile Net Income to Cash Provided by Operating Activities:
Depreciation and Amortization	74,459	71,194
Deferred Income Taxes	12,726	10,414
Other, net	4,032	7,409
Changes in Operating Assets and Liabilities:
Accounts Receivable	(9,581)	5,947
Inventory	(1,928)	(3,254)
Prepaid Expenses	(4,306)	2,597
Lessor Maintenance Deposits	(10,400)	(12,766)
Other Assets	(4,706)	(1,683)
Accounts Payable	(4,403)	(8,544)
Accrued Transportation Taxes	(4,304)	(3,363)
Air Traffic Liabilities	(16,255)	(26,458)
Loyalty Program Liabilities	44	446
Operating Lease Obligations	(2,436)	(1,454)
Other Liabilities	595	(5,649)
Net Cash Provided by Operating Activities	78,201	74,303
Cash Flows Provided by Investing Activities:
Purchases of Property & Equipment	(29,140)	(42,615)
Proceeds from the Sale of Property & Equipment	16,233	10,616
Purchases of Investments	(33,610)	(55,655)
Proceeds from the Maturities of Investments	73,479	107,750
Other, net	198	842
Net Cash Provided by Investing Activities	27,160	20,938
Cash Flows Used in Financing Activities:
Common Stock Repurchases	(20,015)	(11,493)
Proceeds from Borrowings	54,000	10,000
Repayment of Finance Lease Obligations	(15,010)	(26,249)
Repayment of Borrowings	(80,023)	(60,776)
Tax Receivable Agreement Payment	(10,525)	(3,350)
Other, net	573	387
Net Cash Used in Financing Activities	(71,000)	(91,481)
Net Increase in Cash, Cash Equivalents and Restricted Cash	34,361	3,760
Cash, Cash Equivalents and Restricted Cash--Beginning of the Period	100,471	63,680
Cash, Cash Equivalents and Restricted Cash--End of the Period	134,832	67,440
Non-cash transactions:
Aircraft Acquired under Finance Lease	0	40,116
Aircraft Acquired from the Exercise of Finance Lease Purchase Option, net of Accumulated Depreciation	0	11,634
Maintenance Rights Asset Capitalized into Aircraft and Flight Equipment upon End of Lease	4,697	0
Maintenance Rights Asset Converted to Accounts Receivable upon End of Lease	3,982	0
Changes to Finance Lease Assets due to Lease Modifications	$ 0	$ 6,513