CONSOLIDATED STATEMENTS OF CASH FLOWS - (Restricted cash and investments) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Reconciliation of Cash and cash equivalents and restricted cash
Cash and cash equivalents	$ 122,521	$ 41,281	$ 17,690	$ 31,969
Restricted cash	813	859	818	784
Cash and cash equivalents and restricted cash	$ 123,334	$ 42,140	$ 18,508	$ 32,753