Derivative Financial Instruments and Hedging Table of derivatives designated as cash flow hedging instrument (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018		Dec. 31, 2017
Balance Sheet Related Disclosures [Abstract]
Balance Sheet Location	AOCI
Interest Rate Swap | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss), net of tax, on the fair value of interest rate swaps	$ 0	[1]	$ 2,074

[1] Deconsolidated of as part of the sale of Care. See Note (3) Dispositions, Assets Held for Sale and Discontinued Operations.