Cash Overdrafts, Cash Equivalents, and Supplemental Cash Flow Disclosure	12 Months Ended
	Dec. 31, 2021
Cash Overdrafts, Cash Equivalents, and Supplemental Cash Flow Disclosure [Abstract]
Cash Overdrafts, Cash Equivalents, and Supplemental Cash Flow Disclosure	9.    Cash Overdrafts, Cash Equivalents, and Supplemental Cash Flow Disclosure Included in the accompanying Consolidated Balance Sheets are $1.9 million, $3.9 million, and $1.8 million of capitalized property and equipment which were not paid for as of December 31, 2021, 2020, and 2019, respectively. These amounts have been excluded from capital expenditures in the accompanying Consolidated Statements of Cash Flows. There are no material non-cash amounts included in interest expense for any period presented. Included in accounts payable are cash overdrafts of $11.9 million as of December 31, 2021. There are no cash overdrafts included in accounts payable as of December 31, 2020. From time to time throughout the year, we invest excess cash in money market funds directly with major commercial banks. We closely monitor the creditworthiness of the institutions with which we invest our overnight funds. The amount invested was less than $100,000 for each balance sheet date presented.