Derivatives Derivatives (Details)			9 Months Ended
	Jun. 10, 2023	Jul. 07, 2016 USD ($) Rate	Sep. 30, 2016 USD ($) instruments	Dec. 31, 2015 USD ($)
Derivative [Line Items]
Outstanding interest rate swap contracts designated as cash flow hedges | instruments			6
Ineffectiveness on outstanding interest rate swap contracts designated as cash flow hedges | $			$ 0
Total notional amount | $		$ 250,000,000
Effective date		Jul. 07, 2016
Maturity date	Jun. 10, 2023
Asset balance at September 30, 2016 (included in Other assets) | $				$ 0
Asset balance at December 31, 2015 (included in Other assets) | Rate		1.80%
Interest Rate Swap
Derivative [Line Items]
Outstanding interest rate swap contracts designated as cash flow hedges | instruments			5
Effective fixed interest rate | Rate		2.87%
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap
Derivative [Line Items]
Effective fixed interest rate | Rate		1.07%