Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Stock issued for employee stock purchase plan, shares (in shares)			60,697	43,681
Stock issued for compensation plans, shares (in shares)	40,937	28,058	379,226	244,443
Stock repurchased (in shares)			130,916	4,922,336
Cash dividends per share (in dollars per share)	$ 0.18	$ 0.17	$ 0.36	$ 0.34