Derivative Instruments and Hedging Activity - Consolidated statements of operations and other comprehensive loss (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Instruments, Amount of Income/(Loss) Recognized in OCI on Derivative (Effective Portion)	$ (2,244)	$ (3,794)	$ (35,269)	$ (7,199)
Interest Rate Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Instruments, Amount of Income/(Loss) Recognized in OCI on Derivative (Effective Portion)	(3,289)	(3,640)	(36,667)	(7,199)
Interest Rate Swap [Member] \| Interest Expense [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Instruments, Amount of Income/(Loss) Reclassified from Accumulated OCI into Expense (Effective Portion)	$ 1,028	$ 157	$ 1,365	$ 344

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Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580

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-Publisher FASB
-Name Accounting Standards Codification
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Amount before tax of reclassification adjustments of other comprehensive income (loss).

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-Publisher FASB
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-SubTopic 10
-Section 45
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-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL34724394-108580

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