Derivative Instruments (Current Period Cash Flow Hedges in AOCI (loss) before Taxes) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($)
Cash flow hedgers in AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance, beginning	$ 26,126
Amount Recorded in AOCI	78,981
Amounts reclassified into current period earnings	(11,240)
Balance, ending	93,867
Interest Rate | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Amount Recorded in AOCI	281
Amounts reclassified into current period earnings	46
Currency/Interest Rate | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Amount Recorded in AOCI	78,700
Amounts reclassified into current period earnings	$ (11,286)