Stockholders' Equity - Common shares (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of the beginning and ending common stock outstanding
Balance, beginning of year (in shares)	139,487,000
Balance, end of year (in shares)	150,457,000	139,487,000
Common Stock
Reconciliation of the beginning and ending common stock outstanding
Balance, beginning of year (in shares)	139,487,375	134,706,154	125,279,455
Issuance of common stock (in shares)	10,899,301	4,637,445	9,251,440
Non-vested stock-based awards, net of withheld shares and forfeitures (in shares)	70,757	143,776	175,259
Balance, end of year (in shares)	150,457,433	139,487,375	134,706,154