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Goodwill and Acquired Intangible Assets, Net (Details 1) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2021
Dec. 31, 2020
Goodwill and Finite-lived Intangible Assets Rollforward [Roll Forward]      
Balance $ 141,847 $ 121,883 $ 141,847
Increases (decreases):      
Acquisitions     1,575
Impairment     2,048
Amortization   (23,059) (22,867)
Other (primarily changes in foreign currency exchange rates)   1,031 3,376
Balance   97,793 121,883
Balance 743,823 665,821 743,823
Increases (decreases):      
Acquisitions     (265)
Impairment     104,554
Amortization  
Other (primarily changes in foreign currency exchange rates)   24,216 26,817
Balance   641,605 665,821
Balance 885,670 787,704 885,670
Increases (decreases):      
Acquisitions     1,310
Impairment $ (104,600)   106,602
Amortization   (23,059) 22,867
Other (primarily changes in foreign currency exchange rates)   25,247 30,193
Balance   $ 739,398 $ 787,704