Consolidated Statements of Stockholders' Equity (Parenthetical) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]
Issuance of shares of common stock under long-term incentive plan (in shares)	172,720		17,233
Purchase of shares of common stock under share repurchase program (in shares)	2,872,548	3,238,615	3,977,215