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SHAREHOLDERS' EQUITY (Tables)
 12 Months Ended
Dec. 31, 2022
Stockholders' Equity Note [Abstract]  
Summary of Common Shares Issued and Outstanding
The following table presents changes in common shares issued and outstanding:
Year ended December 31,202220212020
Shares issued, balance at beginning of year176,580 176,580 176,580 
Shares issued— — — 
Total shares issued at end of year176,580 176,580 176,580 
Treasury shares, balance at beginning of year(91,806)(92,227)(92,621)
Shares repurchased(897)(205)(194)
Shares reissued 791 626 588 
Total treasury shares at end of year(91,912)(91,806)(92,227)
Total shares outstanding84,668 84,774 84,353 
Summary of Share Repurchases
The following table presents common shares repurchased from shares held in Treasury:
Year ended December 31,202220212020
In the open market: (1)
Total shares634 — — 
Total cost$34,987 $— $— 
Average price per share(2)
$55.22 $— $— 
From employees:(3)
Total shares263 205 194 
Total cost$13,994 $10,242 $10,382 
Average price per share(2)
$53.13 $49.93 $53.43 
Total shares repurchased:
Total shares897 205 194 
Total cost$48,981 $10,242 $10,382 
Average price per share(2)
$54.61 $49.93 $53.43 
(1)    Shares are repurchased pursuant to the Company's Board-authorized share repurchase program announced in December 2021, effective January 1, 2022 through to December 31, 2022.
(2)    Calculated using whole numbers.
(3)    Shares are repurchased from employees to facilitate the satisfaction of their personal withholding tax liabilities that arise on the vesting of share-settled restricted stock units.
Summary of Dividends Declared and Paid
The following table presents dividends declared and paid related to the Company's common and preferred shares:
Per share data
Dividends declared Dividends paid in year of declarationDividends paid in year following declaration
Year ended December 31, 2022
Common shares$1.73 $1.29 $0.44 
Series E preferred shares$137.50 $103.13 $34.38 
Year ended December 31, 2021
Common shares$1.69 $1.26 $0.43 
Series E preferred shares$137.50 $103.13 $34.38 
Year ended December 31, 2020
  Common shares$1.65 $1.23 $0.42 
  Series E preferred shares$137.50 $103.13 $34.38