Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net Income	$ 14,441	$ 12,377	$ 44,320	$ 66,625
Other Comprehensive Income:
Reclassification adjustment of derivatives and designated hedges into net income	(221)	(224)	(440)	(445)
Retirement liability adjustment	282	273	543	570
Total	61	49	103	125
Comprehensive Income	14,502	12,426	44,423	66,750
Comprehensive Income Attributable to Noncontrolling Interests	(1,749)	(1,009)	(3,591)	(2,635)
Comprehensive Income Adjusted for Noncontrolling Interests	$ 12,753	$ 11,417	$ 40,832	$ 64,115