(Bloomberg) -- Turkish markets showed signs of stabilizing on Thursday, as authorities took action to offset any spikes in demand for dollars following the shock detention of President Recep Tayyip Erdogan’s main political rival.Most Read from BloombergAmtrak CEO Departs Amid Threats of a Transit Funding PullbackNew York Subway Ditches MetroCard After 32 Years for Tap-And-GoDespite Cost-Cutting Moves, Trump Plans to Remake DC in His StyleNYC Plans for Flood Protection Without Federal FundsA Mali