Our balances for long-term debt and finance lease obligations were as follows (in thousands):

	March 31,		December 31,
	2021		2020
Revolving credit facility	$	526,141	$	513,180
Finance lease obligations		19,374		20,007
Total debt and finance lease obligations		545,515		533,187
Current portion		2,677		2,631
Noncurrent portion		542,838		530,556
Deferred financing costs, net		2,997		3,257
Noncurrent portion, net of deferred financing costs	$	539,841	$	527,299

Our revolving credit facility is secured by substantially all of our assets. Letters of credit outstanding at March 31, 2021 and December 31, 2020 totaled $4.0 million. The amount of availability under the credit facility at March 31, 2021, after taking into consideration debt covenant restrictions, was $115.4 million.

The credit facility contains certain financial covenants. We are required to maintain a consolidated leverage ratio for the most recently completed four fiscal quarters of 4.75 to 1.00. Such threshold is increased to 5.50 to 1.00 for the quarter during a specified acquisition period (as defined in the credit facility). Upon the occurrence of a qualified note offering (as defined in the credit facility), the consolidated leverage ratio when not in a specified acquisition period is increased to 5.25 to 1.00, while the specified acquisition period threshold remains 5.50 to 1.00. Upon the occurrence of a qualified note offering, we are also required to maintain a consolidated senior secured leverage ratio (as defined in the credit facility) for the most recently completed four fiscal quarter period of not greater than 3.75 to 1.00. Such threshold is increased to 4.00 to 1.00 for the quarter during a specified acquisition period. We are also required to maintain a consolidated interest coverage ratio (as defined in the credit facility) of at least 2.50 to 1.00. As of March 31, 2021, we were in compliance with these financial covenants.

Our borrowings under the revolving credit facility had a weighted-average interest rate of 2.1% as of March 31, 2021 (LIBOR plus an applicable margin, which was 2.0% as of March 31, 2021).