Quarterly report pursuant to Section 13 or 15(d)

Non-Controlling Interests and Equity (Details)

v3.19.1
Non-Controlling Interests and Equity (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Jun. 30, 2018
Jun. 30, 2017
Sep. 30, 2015
Variable Interest Entity [Line Items]          
Term of extension of call option   6 months 6 months 6 months 6 months
Term of extension of Call Option 7.00%        
Term of extension of put option     6 months 1 year 1 year
Redeemable non-controlling interests $ 13,341 $ 14,719      
Minimum          
Variable Interest Entity [Line Items]          
Exercise price of put options 659        
Maximum          
Variable Interest Entity [Line Items]          
Exercise price of put options $ 917