Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Purchase of common stock, shares	1,482,992	1,300,000	2,077,101
Dividends declared per share	$ 0.36	$ 4.11	$ 0.34
Equity compensation activity, shares	170,193	102,552	109,852

Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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