Debt (Policies)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Derivatives, Methods of Accounting, Hedging Derivatives [Policy Text Block]	Our interest rate swap agreement is accounted for in accordance with ASC Topic 815, Derivatives and Hedging. Such agreement is designated as a cash flow hedge and considered to be highly effective under hedge accounting principles. Therefore, the swap agreement is recognized in our consolidated balance sheets as either an asset or liability, measured at fair value. Changes in the fair value of the swap agreement are initially recorded in accumulated other comprehensive loss, net and then subsequently recognized in our consolidated statements of operations in the periods in which earnings are affected by the hedged item. All cash flows associated with the swap agreement are classified as operating activities in our consolidated statements of cash flows