Income Taxes - Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets-
Accounts receivable and allowance for credit losses	$ 4,139	$ 3,203
Stock-based compensation	5,329	4,549
Accrued liabilities and expenses	63,519	44,209
Lease liabilities	57,673	51,065
Net operating loss and tax credit carryforwards	2,963	5,919
Goodwill	24,592
Intangible assets	21,075	8,570
Research and experimental expenditures		195,444
Other	1,685	1,192
Subtotal	180,975	314,151
Valuation allowances	(2,751)	(156)
Total deferred tax assets	178,224	313,995
Deferred tax liabilities-
Property and equipment	(29,970)	(27,049)
Lease right-of-use asset	(57,673)	(51,058)
Long-term contracts	(2,429)	(193,144)
Goodwill		(24,452)
Other	(4,936)	(1,689)
Total deferred tax liabilities	(95,008)	(297,392)
Net deferred tax assets	83,216	16,603
Deferred income tax assets
Deferred tax assets	85,441	17,723
Deferred tax liabilities	2,225	$ 1,120
Valuation allowance on deferred tax assets	$ 2,800