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Equity and Financing Arrangements (Details) - USD ($)		3 Months Ended		9 Months Ended
Equity and Financing Arrangements (Details) - USD ($)	Nov. 05, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Common Stock [Abstract]
Common stock issued during period		0	0	0	0
Dilutive Shares Calculation [Abstract]
Dilutive securities				$ 0
Future Debt Issuance, 2.94% due 2029 \| Subsequent Event [Member]
Debt Instrument [Line Items]
Face amount	$ 50,000,000
Interest rate	2.94%
Term	10 years