Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Purchase and retirement of common stock (in shares)	6,378,025	16,947,393
Dividends declared on common stock (in dollars per share)	$ 0.10	$ 0.10
Issuance of shares of common stock pursuant to employee stock plans (in shares)	1,062,052	552,752