The following table presents debt balances as of March 31, 2020, and December 31, 2019.



	March 31, 2020		December 31, 2019
Senior Secured Term Loan	$	524,875	$	526,313
Incremental Term Loan	254,222		257,111
Senior Secured Revolver	60,000		—
International lines of credit and other loans	11,140		9,823
Total principal	850,237		793,247
Less-current maturities of long-term debt	20,064		19,160
Principal, net of current portion	830,173		774,087
Less-unamortized debt issuance costs (1)	15,201		16,647
Long-term debt, net of current portion	$	814,972	$	757,440