Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
COMMON STOCK
Treasury shares issued under the Long Term Incentive Plan	64,171	80,007	247,853
Shares issued as part of a business combination	1,398,229
RETAINED EARNINGS
Cash dividend declared per share of common stock	$ 0.44	$ 0.38	$ 0.30
TREASURY STOCK, AT COST
Shares issued under long term incentive plan	99,318	125,517	324,978
Treasury stock repurchased	942,967	201,169
Shares retained to cover tax withholdings under the Long Term Incentive Plan	35,147	45,510	77,125