Consolidated Statements of Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends per common share (in dollars per share)	$ 0.125	$ 0.125	$ 0.125
Accounting standards update				us-gaap:AccountingStandardsUpdate201602Member