CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net income	$ 40,083	$ 37,553
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	22,955	21,062
Amortization of deferred loan costs	307	685
Stock-based compensation	2,750	2,185
Stock Based Compensation - Restricted Stock		80
Provision for bad debts	44	24
Loss (gain) on disposition of assets	58	(139)
Non-cash operating lease expense	10
Changes in operating assets and liabilities:
Receivables	1,462	1,429
Income taxes receivable/payable	20,390	(1,323)
Inventories	392	(536)
Prepaid expenses	1,529	1,261
Accounts payable	616	(1,780)
Accrued expenses	(2,681)	110
Net cash provided by operating activities	87,915	60,611
Cash flows from investing activities:
Proceeds from sale of assets	91	131
Change in construction accounts payable	(2,508)	(8,669)
Acquisition of property and equipment	(23,202)	(26,694)
Net cash used in investing activities	(25,619)	(35,232)
Cash flows from financing activities:
Payroll taxes from net exercise of stock options	(99)	(2,468)
Proceeds from exercise of stock options	1,473	5,643
Line-of-credit borrowings	61,000	3,000
Line-of-credit payments	(20,000)	(3,000)
Principal payments on long-term debt	(7,000)	(25,000)
Loan issuance cost		(6,500)
Payment of dividends	(101,349)
Net cash used in financing activities	(65,975)	(28,325)
Change in cash and cash equivalents	(3,679)	(2,946)
Cash and cash equivalents at beginning of period	38,779	33,526
Cash and cash equivalents at end of period	35,100	30,580
Supplemental disclosure of cash flow information:
Cash paid for interest, net of amounts capitalized	1,342	665
Cash paid for income taxes	$ 14,766	$ 9,430