Intangible Assets	12 Months Ended
	Dec. 31, 2021
Intangible Assets [Abstract]
Intangible Assets	‎ 6.    Intangible Assets Amortization of definite-lived intangible assets for the years ended December 31, 2021, 2020, and 2019, was $10.0 million, $10.0 million and $4.3 million, respectively. The following is a schedule by year of projected amortization expense for definite-lived intangible assets (in thousands): 2022$ 10,0172023 9,9632024 9,9162025 9,9022026 9,557Thereafter 2,147 The balance in identifiable intangible assets comprises the following (in thousands): Gross Accumulated Net Book Asset Amortization ValueDecember 31, 2021 Referral networks $ 21,850  $ (21,365) $ 485 Covenants not to compete 10,076  (9,783) 293 Customer lists 4,747  (1,792) 2,955 Reacquired franchise rights 72,477  (24,708) 47,769  Subtotal - definite-lived intangibles 109,150  (57,648) 51,502 VITAS trade name 51,300  - 51,300 Roto-Rooter trade name 150  - 150 Operating licenses 5,144  - 5,144  Total $ 165,744  $ (57,648) $ 108,096  December 31, 2020 Referral networks $ 21,850  $ (21,294) $ 556 Covenants not to compete 10,076  (9,632) 444 Customer lists 4,746  (1,577) 3,169 Reacquired franchise rights 72,478  (15,104) 57,374  Subtotal - definite-lived intangibles 109,150  (47,607) 61,543 VITAS trade name 51,300  - 51,300 Roto-Rooter trade name 150  - 150 Operating licenses 5,092  - 5,092  Total $ 165,692  $ (47,607) $ 118,085