Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Operating lease, right-of-use asset, from leases with related party	$ 123,420	$ 0
Other assets, due from related parties	14,850	13,098
Accounts payable and accrued liabilities, due to related parties	234,443	121,415
Other current liabilities, from leases with related parties	12,856	0
Long-term debt, excluding current portion, amount held by a related party	883,060	425,349
Operating lease liabilities, excluding current portion, from leases with related parties	$ 116,071	$ 0
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Class A
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	50,507,000	41,208,000
Common stock, shares outstanding (in shares)	50,507,000	41,208,000
Class B
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	125,000,000	125,000,000
Common stock, shares issued (in shares)	101,219,000	104,336,000
Common stock, shares outstanding (in shares)	101,219,000	104,336,000
Related Party
Operating lease, right-of-use asset, from leases with related party	$ 44,583	$ 0
Other assets, due from related parties	6,138	1,895
Accounts payable and accrued liabilities, due to related parties	9,549	3,891
Other current liabilities, from leases with related parties	4,518	0
Long-term debt, excluding current portion, amount held by a related party	15,000	15,000
Operating lease liabilities, excluding current portion, from leases with related parties	$ 41,829	$ 0