Text Block Comparison: Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block] (us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareTableTextBlock)

Documentation: Tabular disclosure of investments in certain entities that calculate net asset value per share or equivalent measured at fair value on a recurring or nonrecurring basis.

(For last 10-K submitted to SEC as of March 31, 2018)