EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Components of Calculation of Earnings Per Share

The components of the calculation of earnings per share were as follows:

	2020		2019		2018
	(Dollars and shares in thousands)
Net income	$	308,722	$	193,814	$	223,994
Weighted average number of shares used in:
Basic earnings per share	110,768		110,939		110,603
Dilutive common stock equivalents:
Restricted stock units	625		569		1,029
Diluted earnings per share	111,393		111,508		111,632