XML 21 R5.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Parent Company [Member] |  |  |  |
Trading Securities, Change in Unrealized Holding Gain (Loss) | $ (291) | $ (11) | $ 84 | $ (863)
Partnership Interest [Member] |  |  |  |
Trading Securities, Change in Unrealized Holding Gain (Loss) | $ (291) | $ (11) | $ 84 | $ (863)

X
- Definition Amount of unrealized holding gain (loss) recognized in the income statement for investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. + References No definition available. + Details
Name: | us-gaap_TradingSecuritiesUnrealizedHoldingGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_PartnershipInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |