Text Block Comparison: Targeted or Tracking Stock [Table Text Block] (us-gaap:TargetedOrTrackingStockDescriptionTextBlock)

Documentation: Tabular disclosure of quantitative and qualitative information related to target or tracking stock issued, including, but not limited to, pricing of transactions and cost allocation method used.

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

Entity Disclosure