Income Taxes (Details 3) $ in Thousands	Dec. 31, 2019 USD ($)
AMT Credit Refund Request	$ 40,842
Alternative Minimum Tax Credit Refund [Member] \| December 31, 2020 [Member]
AMT Credit Refund Request	20,421
Alternative Minimum Tax Credit Refund [Member] \| December 31, 2021 [Member]
AMT Credit Refund Request	$ 20,421

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319

Name:	us-gaap_TaxCreditCarryforwardAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant