CONDENSED CONSOLIDATED STATEMENTS OF EQUITY UNAUDITED (Parenthetical) - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Statement of Stockholders' Equity [Abstract]
Interest rate swaps, tax	$ 3,710,000	$ 1,409,000
Capitalized swap interest, tax (benefit)	9,000	$ 86,000
Pension deferred tax benefit	$ 620,000