Line of Credit	12 Months Ended
Mar. 31, 2021
Debt Disclosure [Abstract]
Line of Credit	11. Line of Credit On March 12, 2021, we entered into a $300 million second amended and restated revolving credit agreement (the “Credit Agreement”) with JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”), U.S. Bank National Association and Bank of the West, as co-syndication agents, and certain other agents and lenders. The Credit Agreement replaces our prior $300 million amended and restated revolving credit agreement, originally entered into on January 4, 2016 and amended on March 29, 2018 (“Original Credit Agreement”). The Credit Agreement is secured by substantially all of our existing and future property and our material domestic subsidiaries. The Credit Agreement provides a subfacility of up to $10 million for letters of credit and a subfacility of up to $10 million for swing-line loans. The Credit Agreement also provides us with the ability to obtain up to $150 million in the aggregate of additional revolving credit commitments and/or term loans thereunder (i.e., in excess of $300 million) upon satisfaction of certain conditions, including receipt of commitments from new or existing lenders to provide such additional revolving credit commitments and/or term loans. The Credit Agreement matures on March 12, 2026 and the full balance of the revolving loans and all other obligations under the Credit Agreement must be paid at that time. In addition, we are required to prepay the revolving loan balance if at any time the aggregate principal amount outstanding under the Credit Agreement exceeds the aggregate commitments thereunder. The revolving loans under the Credit Agreement bear interest at either, at our option, (a) for base rate loans, a base rate based on the highest of (i) 1%, (ii) the “prime rate” quoted in the Wall Street Journal for the United States of America, (iii) the overnight bank funding rate (not to be less than zero) as determined by the Federal Reserve Bank of New York plus 0.50% or (iv) the LIBOR-based rate for one month Eurodollar deposits plus 1%, and (b) for Eurodollar loans, the LIBOR-based rate for one, two, three or six months (as selected by us) Eurodollar deposits plus, in each case, an applicable margin based on our net leverage ratio from time to time, ranging from 0.50% to 1.75% for base rate loans, and from 1.50% to 2.75% for Eurodollar loans. The Credit Agreement contains provisions to accommodate the replacement of the existing LIBOR-based rate with a successor Secured Overnight Financing Rate (“SOFR”) based rate upon a triggering event. We will also pay a commitment fee of between 0.25% and 0.45%, payable quarterly in arrears, on the average daily unused amount of the revolving facility based on our net leverage ratio from time to time. The revolving loans are subject to customary representations, warranties and ongoing affirmative and negative covenants and agreements. The negative covenants include, among other things, limitations on indebtedness, liens, asset sales, mergers and acquisitions, investments, transactions with affiliates, dividends and other restricted payments, payment of subordinated indebtedness and convertible debt and amendments to subordinated indebtedness documents and sale and leaseback transactions of ours or any of our subsidiaries. The Credit Agreement also requires us to maintain (1) a maximum net leverage ratio of 3.75 to 1.00 and (2) a minimum interest coverage ratio of 3.50 to 1.00 at the end of each fiscal quarter through the term of the loan. The revolving loans under the Credit Agreement will be available for letters of credit, permitted acquisitions, working capital and general corporate purposes. We were in compliance with all financial and non-financial covenants under the Credit Agreement as of March 31, 2021. As of March 31, 2021, we had no outstanding loans and $300,000 of unused credit under the Credit Agreement. As of March 31, 2020, we had $129,000 in outstanding loans and $171,000 of unused credit under the Original Credit Agreement. The interest rate as of March 31, 2020 and was approximately 2.3%. During the years ended March 31, 2021, 2020, and 2019, we recorded $2,541, $1,274, and $2,055 of interest expense (excluding amortization of deferred debt issuance costs), respectively, and the weighted average interest rates were approximately 2.2%, 2.4%, and 3.7% respectively. Costs incurred in connection with securing the Credit Agreement, including fees paid to legal advisors and third parties, are deferred and amortized to interest expense over the term of the Credit Agreement. Deferred debt issuance costs are reported as a component of other assets on the consolidated balance sheets. As of March 31, 2021, total unamortized debt issuance costs were $2,521, which includes $1,423 of additional costs related to the Credit Agreement, and net of $326 unamortized debt issuance costs that were written off in connection with amending the Original Credit Agreement. As of March 31, 2020, total unamortized debt issuance costs were $2,124. During the years ended March 31, 2021, 2020, and 2019, we recorded $1,026, $710, and $710, respectively, in amortization of deferred debt issuance costs, including amounts written off in the year ended March 31, 2021.

Line of Credit

12 Months Ended

Mar. 31, 2021

11. Line of Credit

On March 12, 2021, we entered into a $300 million second amended and restated revolving credit agreement (the “Credit Agreement”) with JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”), U.S. Bank National Association and Bank of the West, as co-syndication agents, and certain other agents and lenders. The Credit Agreement replaces our prior $300 million amended and restated revolving credit agreement, originally entered into on January 4, 2016 and amended on March 29, 2018 (“Original Credit Agreement”). The Credit Agreement is secured by substantially all of our existing and future property and our material domestic subsidiaries. The Credit Agreement provides a subfacility of up to $10 million for letters of credit and a subfacility of up to $10 million for swing-line loans. The Credit Agreement also provides us with the ability to obtain up to $150 million in the aggregate of additional revolving credit commitments and/or term loans thereunder (i.e., in excess of $300 million) upon satisfaction of certain conditions, including receipt of commitments from new or existing lenders to provide such additional revolving credit commitments and/or term loans.

The Credit Agreement matures on March 12, 2026 and the full balance of the revolving loans and all other obligations under the Credit Agreement must be paid at that time. In addition, we are required to prepay the revolving loan balance if at any time the aggregate principal amount outstanding under the Credit Agreement exceeds the aggregate commitments thereunder.

The revolving loans under the Credit Agreement bear interest at either, at our option, (a) for base rate loans, a base rate based on the highest of (i) 1%, (ii) the “prime rate” quoted in the Wall Street Journal for the United States of America, (iii) the overnight bank funding rate (not to be less than zero) as determined by the Federal Reserve Bank of New York plus 0.50% or (iv) the LIBOR-based rate for one month Eurodollar deposits plus 1%, and (b) for Eurodollar loans, the LIBOR-based rate for one, two, three or six months (as selected by us) Eurodollar deposits plus, in each case, an applicable margin based on our net leverage ratio from time to time, ranging from 0.50% to 1.75% for base rate loans, and from 1.50% to 2.75% for Eurodollar loans. The Credit Agreement contains provisions to accommodate the replacement of the existing LIBOR-based rate with a successor Secured Overnight Financing Rate (“SOFR”) based rate upon a triggering event. We will also pay a commitment fee of between 0.25% and 0.45%, payable quarterly in arrears, on the average daily unused amount of the revolving facility based on our net leverage ratio from time to time.

The revolving loans are subject to customary representations, warranties and ongoing affirmative and negative covenants and agreements. The negative covenants include, among other things, limitations on indebtedness, liens, asset sales, mergers and acquisitions, investments, transactions with affiliates, dividends and other restricted payments, payment of subordinated indebtedness and convertible debt and amendments to subordinated indebtedness documents and sale and leaseback transactions of ours or any of our subsidiaries. The Credit Agreement also requires us to maintain (1) a maximum net leverage ratio of 3.75 to 1.00 and (2) a minimum interest coverage ratio of 3.50 to 1.00 at the end of each fiscal quarter through the term of the loan. The revolving loans under the Credit Agreement will be available for letters of credit, permitted acquisitions, working capital and general corporate purposes. We were in compliance with all financial and non-financial covenants under the Credit Agreement as of March 31, 2021.

As of March 31, 2021, we had no outstanding loans and $300,000 of unused credit under the Credit Agreement. As of March 31, 2020, we had $129,000 in outstanding loans and $171,000 of unused credit under the Original Credit Agreement. The interest rate as of March 31, 2020 and was approximately 2.3%.

During the years ended March 31, 2021, 2020, and 2019, we recorded $2,541, $1,274, and $2,055 of interest expense (excluding amortization of deferred debt issuance costs), respectively, and the weighted average interest rates were approximately 2.2%, 2.4%, and 3.7% respectively.

Costs incurred in connection with securing the Credit Agreement, including fees paid to legal advisors and third parties, are deferred and amortized to interest expense over the term of the Credit Agreement. Deferred debt issuance costs are reported as a component of other assets on the consolidated balance sheets. As of March 31, 2021, total unamortized debt issuance costs were $2,521, which includes $1,423 of additional costs related to the Credit Agreement, and net of $326 unamortized debt issuance costs that were written off in connection with amending the Original Credit Agreement. As of March 31, 2020, total unamortized debt issuance costs were $2,124. During the years ended March 31, 2021, 2020, and 2019, we recorded $1,026, $710, and $710, respectively, in amortization of deferred debt issuance costs, including amounts written off in the year ended March 31, 2021.