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Other commitments	9 Months Ended
Other commitments	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Noncontrolling interests subject to put provisions and other commitments	Other commitments The Company has certain other potential commitments to provide operating capital to a number of outpatient dialysis businesses that are wholly-owned by third parties or businesses in which the Company maintains a noncontrolling equity interest of approximately $8,945.