Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 14,405	$ 296,215
Accounts receivable, net	372,396	311,742
Prepaid expenses	35,746	32,648
Income tax receivable	8,329	1,005
Other current assets	6,471	7,084
Total current assets	437,347	648,694
Property and Equipment, at cost	3,704,281	2,881,800
Less: accumulated depreciation and amortization	1,222,373	1,118,492
Net property and equipment	2,481,908	1,763,308
Operating Lease Right-of-Use Assets	121,336	118,734
Goodwill and Identifiable Intangibles, net	16,656	17,296
Other Noncurrent Assets	24,877	35,533
Total assets	3,082,124	2,583,565
Current Liabilities:
Accounts payable	161,241	141,877
Wages, vacation and employees’ benefits	70,613	75,514
Claims and insurance accruals	40,799	41,641
Other current liabilities	41,580	27,094
Current portion of long-term debt	6,761	10,173
Current portion of operating lease liability	25,679	25,757
Total current liabilities	346,673	322,056
Other Liabilities:
Long-term debt, less current portion	184,202	6,315
Operating lease liability, less current portion	92,325	96,462
Deferred income taxes	161,867	155,841
Claims, insurance and other	65,572	61,397
Total other liabilities	503,966	320,015
Commitments and Contingencies (Note 3)
Stockholders’ Equity:
Preferred stock, $0.001 par value, 50,000 shares authorized, none issued and outstanding	0	0
Common stock, $0.001 par value, 100,000,000 shares authorized, 26,595,075 and 26,549,372 shares issued and outstanding at September 30, 2024 and December 31, 2023, respectively	27	27
Additional paid-in-capital	291,319	285,092
Deferred compensation trust, 70,560 and 69,672 shares of common stock at cost at September 30, 2024 and December 31, 2023, respectively	(7,877)	(5,679)
Retained earnings	1,948,016	1,662,054
Total stockholders’ equity	2,231,485	1,941,494
Total liabilities and stockholders’ equity	$ 3,082,124	$ 2,583,565