Debt

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Debt

Debt

In July 2021, the Company entered into a fourth amendment to the unsecured credit agreement dated July 27, 2012 with Wells Fargo Bank, National Association, and certain other institutional lenders that provides for a $300.0 million unsecured revolving credit facility (“Credit Facility”). The Amendment extends the term of the Credit Agreement from July 23, 2022, to July 12, 2026. The Company is required to pay an annual facility fee of 0.10 to 0.25 percent on the available commitments under the Credit Agreement, regardless of usage, with the applicable fee determined on a quarterly basis based on the Company’s leverage ratio. The fee is included within other expense in the Company's condensed consolidated statement of operations.

Amounts borrowed under the Credit Agreement bear interest at an annual rate equal to either, at the Company’s option, (a) the rate for Eurocurrency deposits for the corresponding deposits of U.S. dollars as published by the ICE Benchmark

Administration Limited, a United Kingdom company, or a comparable or successor quoting service approved by the Administrative Agent (the “LIBOR Rate”), adjusted for any reserve requirement in effect, plus a spread of from 0.65 to 1.50 percent, as determined on a quarterly basis based on the Company’s leverage ratio, or (b) a base rate, plus a spread of 0.00 to 0.50 percent, as determined on a quarterly basis based on the Company’s leverage ratio. In no event shall the LIBOR Rate be less than 0.50 percent. The base rate is defined in a manner such that it will not be less than the LIBOR Rate. The Company will pay fees for standby letters of credit at an annual rate equal to the LIBOR Rate plus the applicable spread described in the preceding clause (a), and will pay market-based fees for commercial letters of credit. The spread applicable to a particular LIBOR Rate loan or base rate loan depends on the consolidated leverage ratio of the Company and its subsidiaries at the time the loan is made. Loans outstanding under the Credit Agreement may be prepaid at any time without penalty except for LIBOR Rate breakage costs and expenses.

As of December 31, 2021, in addition to the Credit Facility, certain of the Company’s domestic subsidiaries are guarantors for a credit agreement between certain of its foreign subsidiaries and institutional lenders. Together, all of its credit facilities provide the Company with a total of $304.4 million in revolving credit lines and an irrevocable standby letter of credit in support of various insurance deductibles.

The Company and its subsidiaries are required to comply with various affirmative and negative covenants. The covenants include provisions that would limit the availability of funds as a result of a material adverse change to the Company’s financial position or results of operations. The Company was in compliance with its financial covenants under the loan agreement as of December 31, 2021.

The Company incurs interest costs, which include interest, maintenance fees and bank charges. The amount of costs incurred, capitalized, and expensed for the years ended December 31, 2021, 2020 and 2019, consisted of the following:

	Years Ended December 31,
	2021		2020		2019
Interest costs incurred	$	1,424	$	2,796	$	2,172
Less: Interest capitalized	(574)		(512)		(144)
Interest expense	$	850	$	2,284	$	2,028