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Commitments And Contingencies (Tables)
 12 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Lease Payments
Future minimum lease payments under operating leases at December 31, 2018 are as follows (in thousands):
2019$18,807 
202015,113 
202112,449 
20229,113 
20236,627 
Thereafter23,894 
Total minimum lease payments$86,003 
Reconciliation of Contingent Consideration Liability
The following table provides a reconciliation of the Company’s contingent consideration liability for the years ended December 31:
(In thousands)201820172016
Balance at beginning of period$12,545 $9,241 $10,840 
Acquisitions43 7,288 1,322 
Payments(4,803)(7,682)(4,944)
Accretion (a)
951 1,652 1,274 
Fair value adjustments (a) (b)
(944)1,257 749 
Net foreign currency translation adjustment(490)789 — 
Balance at end of the period (c)
7,302 12,545 9,241 
Less current portion in accrued expenses and other current liabilities(17)(4,658)(5,829)
Total long-term portion in other long-term liabilities$7,285 $7,887 $3,412 

g.Recorded in selling, general and administrative expenses in the Consolidated Statements of Income.
h.Includes adjustments to assumptions on weighted average cost of capital and relevant sales projections.
i.Amounts represent the fair value of estimated remaining payments. The total estimated remaining undiscounted payments as of December 31, 2018 were $9.1 million. The liability for contingent consideration expires at various dates through September 2029. Certain of the contingent consideration arrangements are subject to a maximum payment amount, while the remaining arrangements have no maximum contingent consideration.