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Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2021
Business Combinations [Abstract] |
Summary of Preliminary Fair Values of Assets Acquired and Liabilities Assumed | The preliminary fair values of assets acquired and liabilities assumed in the CenterPointe acquisition were as follows (in thousands):
Cash |  | $ | 5,640 |
Accounts receivable, net |  |  | 10,230 |
Other current assets |  |  | 2,087 |
Property and equipment |  |  | 35,670 |
Goodwill |  |  | 97,122 |
Intangible assets |  |  | 825 |
Deferred tax assets |  |  | 1,573 |
Operating lease right-of-use assets |  |  | 28,858 |
Total assets acquired |  |  | 182,005 |
Accounts payable |  |  | 3,820 |
Accrued salaries and benefits |  |  | 3,585 |
Current portion of operating lease liabilities |  |  | 2,582 |
Other accrued liabilities |  |  | 1,088 |
Operating lease liabilities |  |  | 26,275 |
Total liabilities assumed |  |  | 37,350 |
Net assets acquired |  | $ | 144,655 |
Summary of Changes in Goodwill | The following table summarizes changes in goodwill for the years 2020 and 2021 (in thousands):
Balance at January 1, 2020 |  | $ | 2,085,104 |
Increase from contribution of redeemable noncontrolling interests |  |  | 20,200 |
Adjustments related to 2019 acquisitions |  |  | (40 | )
Balance at December 31, 2020 |  |  | 2,105,264 |
Increase from acquisitions |  |  | 97,122 |
2021 dispositions |  |  | (2,449 | )
Balance at December 31, 2021 |  | $ | 2,199,937 |
Transaction Related Expenses as Incurred | Transaction-related expenses represent costs primarily related to termination, restructuring, strategic review, management transition and other acquisition-related costs. Transaction-related expenses comprised the following costs for the years ended December 31, 2021, 2020 and 2019 (in thousands):
|  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Legal, accounting and other acquisition-related costs |  | $ | 8,315 |  |  | $ | 8,252 |  |  | $ | 3,030 |
Termination, restructuring and strategic review costs |  |  | 4,463 |  |  |  | 3,468 |  |  |  | 12,598 |
Management transition costs |  |  | — |  |  |  | — |  |  |  | 5,529 |
|  | $ | 12,778 |  |  | $ | 11,720 |  |  | $ | 21,157 |

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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details
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