Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

Derivative Instruments (Narrative) (Details) - USD ($) $ in Millions	Jul. 08, 2019	Jun. 30, 2015
Interest Rate Swap 1
Derivative [Line Items]
Derivative, Notional Amount		$ 500.0
Subsequent Event \| Interest Rate Swaps
Derivative [Line Items]
Payments to terminate derivative contract	$ 23.6