Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Recurring (Details)

v3.19.2
Fair Value Measurements - Recurring (Details)
$ in Thousands
Mar. 31, 2018
USD ($)
Fair Value Measurements  
Restricted cash $ 5,000
Recurring | Total  
Fair Value Measurements  
Restricted cash 5,000
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)  
Fair Value Measurements  
Restricted cash $ 5,000