Segment and Related Information - Reconciliation of Segment Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Identifiable assets by geographic area [Abstract]
Assets	$ 816,482	$ 854,858
Goodwill by business segment [Abstract]
Goodwill	487,647	486,762
United States
Identifiable assets by geographic area [Abstract]
Assets	773,777	809,437
Other Countries
Identifiable assets by geographic area [Abstract]
Assets	42,705	45,421
Restaurant/Retail
Goodwill by business segment [Abstract]
Goodwill	486,911	486,026
Government
Goodwill by business segment [Abstract]
Goodwill	736	736
Operating segments | Restaurant/Retail
Identifiable assets by geographic area [Abstract]
Assets	700,746	722,958
Operating segments | Government
Identifiable assets by geographic area [Abstract]
Assets	20,340	21,443
Other
Identifiable assets by geographic area [Abstract]
Assets	$ 95,396	$ 110,457