Debt and Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Summary of Total Debt

Total debt was as follows: 

	December 31,
(Dollar amounts in thousands)	2017		2016
Senior Secured Credit Facility (2018 Term A) due on April 17, 2018 paying interest at a variable interest rate (London InterBank Offered Rate (“LIBOR”) plus applicable margin(1)(3))	$	26,690	$	28,721
Senior Secured Credit Facility (2020 Term A) due on January 17, 2020 paying interest at a variable interest rate (LIBOR plus applicable margin(3)(4))	200,653		212,661
Senior Secured Credit Facility (Term B) due on April 17, 2020 paying interest at a variable interest rate (LIBOR plus applicable margin(2)(3))	376,395		378,074
Senior Secured Revolving Credit Facility(6)	12,000		28,000
Note Payable due on October 1, 2017(3)	—		1,524
Note Payable due on July 31, 2017(3)	—		357
Note Payable due on August 31, 2019(5)	584		890
Note Payable due on April 30, 2021(3)	418		532
Total debt	$	616,740	$	650,759

(1) Applicable margin of 2.25% at December 31, 2017 and December 31, 2016.

(2) Subject to a minimum rate (“LIBOR floor”) of 0.75% plus applicable margin of 2.50% at December 31, 2017 and December 31, 2016.

(3) Net of unaccreted discount and unamortized debt issue costs, as applicable.

(4) Applicable margin of 2.50% at December 31, 2017 and December 31, 2016.

(5) Fixed interest rate of 7.50%.

(6) Applicable margin of 2.50% at December 31, 2017 and December 31, 2016.

Summary of Contractual Principal Payments

The following table presents contractual principal payments for the next five years:

(Dollar amounts in thousands)
2018	$	58,950
2019	24,952
2020	540,820
2021	45
2022	—

Schedule of Interest Rate Swap Transaction

At December 31, 2017 and 2016, the Company has the following interest rate swap agreement converting a portion of the interest rate exposure on the Company's Term B Loan from variable to fixed:

Effective date	Maturity Date	Notional Amount	Variable Rate	Fixed Rate
January 2017	April 2020	$200 million	1-month LIBOR	1.9225%

Schedule of Carrying Amount of Derivative Instruments on the Balance Sheet

As of December 31, 2017 and December 31, 2016, the carrying amount of the derivative on the Company’s balance sheets is as follows:

(Dollar amounts in thousands)	December 31, 2017		December 31, 2016
Other long-term assets	$	214	$	—
Other long-term liabilities	—		1,964