Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Stock issued for employee stock purchase plan, shares (in shares)	43,681	60,413
Stock issued for compensation plans, shares (in shares)	216,385	160,305
Stock repurchased (in shares)	4,922,336
Cash dividends per share (in dollars per share)	$ 0.17	$ 0.16