Derivative Instruments and Hedging Activity - Offsetting of Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Derivative Instruments and Hedging Activity
Gross Amounts of Recognized Assets		$ 2,539
Gross Amounts Offset in the Statement of Financial Position	$ 0	0
Net Amounts of Assets presented in the statement of Financial Position		2,539
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	(575)
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Net Amount		1,964
Gross Amounts of Recognized Liabilities	14,016	1,135
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities presented in the statement of Financial Position	14,016	1,135
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	(575)
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Net Amount	$ 14,016	$ 560

Fair value of liability associated with 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.

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