Restricted Cash Restricted Cash	12 Months Ended
	Dec. 31, 2021
Restricted Cash [Abstract]
Restricted Cash and Cash Equivalents Disclosure [Text Block]	Restricted cash and equivalentsThe Company had restricted cash and cash equivalents of $93,060 and $176,832 at December 31, 2021 and 2020, respectively. The decrease in restricted cash and equivalents was primarily driven by the release of escrow funds in the third quarter of 2021 related to a resolved legal settlement. See Note 16 for further details. Substantially all of the restricted cash and equivalents balance at December 31, 2021 is held in trust to satisfy insurer and state regulatory requirements related to the wholly-owned captive insurance companies that bear professional and general liability and workers' compensation risks for the Company and the remaining restricted cash and cash equivalents held at December 31, 2021 represents cash pledged to third parties in connection with one of the Company's ancillary businesses.