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Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments (Details) - Interest rate swaps - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative labilities	$ 12,800	$ 8,500
Variation margin	27,700	8,500
Derivative assets		1,800
Trading
Derivative [Line Items]
Derivative assets	$ 14,873	$ 10,263

X

- Definition

Derivative Instruments, Variation Margin Receivable

+ References

No definition available.

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- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

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Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

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