Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) (Unaudited) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividend declared (in dollars per share)	$ 0.44	$ 0.4050
Deferred compensation plan held Rabbi Trust (shares)	116,751	104,871	105,087	95,329
Preferred Stock, Shares Authorized	2,000,000		2,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01
Shares issued under the performance incentive plan withheld for employee taxes (shares)	14,020	10,319