Summary of Significant Accounting Policies - Global Wells (Details) - Global Wells				9 Months Ended	12 Months Ended
	Jul. 01, 2020 USD ($)	May 01, 2019 USD ($)	Oct. 01, 2018 USD ($)	Sep. 30, 2021 USD ($) stockholder	Dec. 31, 2017 USD ($) unrelated_party	Dec. 31, 2020 USD ($)	May 31, 2019 USD ($)
Variable Interest Entity [Line Items]
Other unrelated parties | unrelated_party					3
Ownership interest					13.50%
Voting interest					25.00%
Minimum bank account to make additional contributions from members					$ 50,000
Contributions to offset the amount that member cannot contribute (up to)					$ 25,000
Maximum advances (up to)							$ 21,640,000
Total loan guaranteed				$ 37,005,000		$ 37,491,000
Number of primary stockholders who guaranteed loans | stockholder				2
Texas
Variable Interest Entity [Line Items]
Lease term			10 years
Monthly lease payment		$ 196,000	$ 214,500
New Jersey
Variable Interest Entity [Line Items]
Lease term	5 years
Monthly lease payment	$ 90,128