Borrowings	12 Months Ended
Borrowings	Dec. 31, 2019
Debt Disclosure [Abstract]
Borrowings	(12) Borrowings Credit Facility On February 27, 2019, we, as borrower, and certain of our subsidiaries, as guarantors, entered into a 5-year $100,000 senior secured term loan facility (the “Term Facility”) and a 5-year $100,000 senior secured revolving credit facility (the “Revolving Facility” and, together with the Term Facility, the “Senior Credit Facility”). The Senior Credit Facility replaced our prior $150,000 5-year revolving, unsecured credit facility (the “Prior Credit Agreement”), which was terminated on February 27, 2019 in connection with the entry into the Senior Credit Facility. The proceeds of the Senior Credit Facility were used to refinance existing indebtedness of $25,000 outstanding under the Prior Credit Agreement and to support working capital and general corporate purposes. Pursuant to the Senior Credit Facility, the guarantors guarantee, among other things, all our obligations and each other guarantor's obligations under the Senior Credit Facility. From time to time, we may be required to cause additional domestic subsidiaries to become guarantors under the Senior Credit Facility. The Senior Credit Facility is scheduled to mature on February 26, 2024, at which time all amounts outstanding thereunder will be due and payable. However, the maturity date of the Revolving Facility may be extended at our election with the consent of the lenders subject to the terms set forth in the Senior Credit Facility. The Senior Credit Facility contains customary covenants, some of which require us to maintain certain financial ratios that determine the amounts available and terms of borrowings and events of default. We were in compliance with all covenants at December 31, 2019. The payment of dividends on our common stock is restricted under provisions of the Senior Credit Facility, which limits the amount of cash dividends that we may pay in any one fiscal year to $30,000. We currently do not pay, and have not paid, any dividends on our common stock, and currently intend to retain any future earnings for use in our business. Borrowings under the Senior Credit Facility are subject to interest at varying spreads above quoted market rates and a commitment fee is paid on the total unused commitment. At December 31, 2019, our floating interest rate was 3.80% and commitment fees for the years ended December 31, 2019 and 2018 totaled $374 and $370, respectively. Subject to certain terms and conditions contained in the Revolving Facility, we have the right to request up to four increases to the amount of the Revolving Facility in an aggregate amount not to exceed $100,000. At December 31, 2019, we had a balance of $48,232 outstanding on the Term Facility, whereby future payments under the Term Facility are expected to be $2,506 in 2020, $4,385 in 2021, $6,890 in 2022, $7,517 in 2023 and $26,934 in 2024. Unamortized deferred financing costs were $511. As a result of the Term Facility, we have exposure to floating interest rates. To manage interest expense, we entered into a floating to fixed interest rate swap to reduce exposure to changes in floating interest rates on the Term Facility. The interest rate swap has a notional value of $40.0 million and will expire on February 26, 2024, concurrent with the Term Facility. The notional value will decline over the term of the interest rate swap as amortization payments reduce the principal amount of the Term Facility. As a result of the interest rate swap, the percentage of total principal debt (excluding capital leases) that is subject to floating interest rates is approximately 17%. We designated the swap as a cash flow hedge for accounting treatment purposes. See Note 13 for additional information. Interest Income and Expense Interest income totaled $1,209, $789 and $784 for the years ended December 31, 2019, 2018 and 2017, respectively. Interest expense totaled $4,442, $1,188 and $919 for the years ended December 31, 2019, 2018 and 2017, respectively.