Derivative Instruments - Cash flow hedges (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Effects of derivative instruments
Unrealized gain (loss) on derivative instruments	$ 11,250	$ (2,298)
Cash flow hedging
Effects of derivative instruments
Unrealized gain (loss) on derivative instruments	11,250	(2,298)
Cash flow hedging \| Interest rate contracts \| Interest expense
Effects of derivative instruments
Unrealized gain (loss) on derivative instruments	$ 11,250	$ (2,298)

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

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=124509347&loc=d3e637-108580

Name:	us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration