Fair Value of Derivative and Financial Instruments - Summary of Derivative Financial Instruments on Consolidated Statements of Operations and Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Derivative Instruments Gain Loss [Line Items]
Amount of gain (loss) recognized in OCI	$ (5,665)	$ 7,761
Interest rate products \| Interest expense
Derivative Instruments Gain Loss [Line Items]
Amount of gain (loss) recognized in OCI	(3,785)	8,100
Amount of gain (loss) reclassified from OCI into income	1,880	339
Amount of gain (loss) recognized in income	$ (26)	$ 10

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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