CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Total other comprehensive income, deferred income taxes	$ (1,229)	$ (5,267)	$ (1,569)	$ 1,729
Stock appreciation rights exercised (in shares)	6,744		10,216	927
Vesting of restricted stock units and other stock grants (in shares)	14,211	104,840	99,134	94,229
Stock Issued During Period, Shares, Other		265,151		529,213