CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
CONSOLIDATED BALANCE SHEETS
Allowance for credit losses	$ 6,910	$ 7,078
Accumulated depreciation	$ 795,047	$ 775,334
Preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	349,000,000	349,000,000
Common stock, shares issued (in shares)	216,228,372	216,609,191
Common stock, shares outstanding (in shares)	216,228,372	216,609,191