Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accumulated depreciation on property and equipment	$ 92,895	$ 68,809
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common Stock, Shares Authorized (in shares)	250,000,000	250,000,000
Common Stock, Shares, Issued (in shares)	112,075,474	112,075,474
Common Stock, Shares, Outstanding (in shares)	104,781,236	104,781,236