CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) Lease shares
Supplemental disclosures of non-cash investing and financing activities
Common stock issued through the dividend reinvestment plan (in shares) | shares	2,810	2,844	2,747
Common stock issued through the dividend reinvestment plan	$ 593	$ 566	$ 458
Number of shares withheld to satisfy employees' tax withholding and other liabilities (in shares) | shares	72,783	75,780	74,173
Shares withheld to satisfy employees' tax withholding and other liabilities, value	$ 16,989	$ 13,463	$ 14,919
Number of shares forfeited (in shares) | shares	3,701
Shares cancelled upon forfeiture	$ 791	804	1,240
Dividends payable	226,022	225,392
Change in redemption value of redeemable noncontrolling interest	105	1,022	(210)
Cash flow hedge losses reclassified to earnings	(3,883)	(13,151)	(8,984)
Increase (decrease) in derivative assets		3,204	1,413
Increase (decrease) in derivative liabilities			4,308
Total lease liabilities	142,602	146,377
Right of use lease assets	114,977	118,370
Interest Expense
Supplemental disclosures of non-cash investing and financing activities
Cash flow hedge losses reclassified to earnings	$ 3,883
Cash flow hedge losses reclassified		7,887
Gain (Loss) on Extinguishment of Debt
Supplemental disclosures of non-cash investing and financing activities
Cash flow hedge losses reclassified to earnings		$ (5,264)
New office leases
Supplemental disclosures of non-cash investing and financing activities
Total lease liabilities			46,875
Right of use lease assets			$ 46,875
Number of new office leases | Lease			2
Restricted stock and restricted stock converted from performance shares
Supplemental disclosures of non-cash investing and financing activities
Granted (in shares) | shares	140,528	155,836	165,545
Performance awards
Supplemental disclosures of non-cash investing and financing activities
Granted (in shares) | shares	72,783	138,033	77,182
Conversion of performance awards to restricted shares of common stock (in shares) | shares	54,053	56,545
Restricted stock
Supplemental disclosures of non-cash investing and financing activities
Granted (in shares) | shares	86,475	99,291	69,228
Fair value of shares issued	$ 20,056	$ 17,757	$ 15,305
Number of shares forfeited (in shares) | shares	3,701	4,109	7,683
Restricted stock converted from performance shares
Supplemental disclosures of non-cash investing and financing activities
Granted (in shares) | shares	0	0	96,317
Common stock
Supplemental disclosures of non-cash investing and financing activities
Dividends payable	$ 224,222	$ 224,012	$ 223,262
Accumulated earnings less dividends
Supplemental disclosures of non-cash investing and financing activities
Change in redemption value of redeemable noncontrolling interest	$ 105	$ 1,022	$ (210)