Debt

Long-term debt was comprised of the following:



	As of December 31
	2016			2015
Revolving credit facility due in 2020	$	89,100		$	90,700
Weighted-average interest rate	1.9		%	1.5		%
Amount available	$	208,735		$	106,985
Total credit facility	$	300,000		$	200,000
Standby letters of credit	$	2,165		$	2,315
Commitment fee percentage per annum	0.25		%	0.25		%

The revolving credit facility requires, among other things, that we comply with a maximum total leverage ratio and a minimum fixed charge coverage ratio. Failure to comply with these covenants could reduce the borrowing availability under the revolving credit facility. We were in compliance with all debt covenants as of December 31, 2016. The revolving credit facility requires us to deliver quarterly financial statements, annual financial statements, auditors certifications and compliance certificates within a specified number of days after the end of a quarter and year. Additionally, the revolving credit facility contains restrictions limiting our ability to dispose of assets; incur certain additional debt; repay other debt or amend subordinated debt instruments; create liens on assets; make investments, loans or advances; make acquisitions or engage in mergers or consolidations; engage in certain transactions with our subsidiaries and affiliates; and make stock repurchases and dividend payments. Interest rates on the revolving credit facility fluctuate based upon the London Interbank Offered Rate and the Company's quarterly total leverage ratio. We pay a commitment fee on the undrawn portion of the revolving credit facility. The commitment fee varies based on the quarterly leverage ratio.

We have debt issuance costs related to our long-term debt that are being amortized using the straight-line method over the life of the debt. Amortization expense was approximately $163 in 2016, $175 in 2015, and $200 in 2014, and was recognized as interest expense.

We use interest rate swaps to convert the revolving credit facility's variable rate of interest into a fixed rate on a portion of the debt. In the second quarter of 2012, We entered into four separate interest rate swap agreements to fix interest rates on $50,000 of long-term debt for the periods January 2013 to January 2017. In the third quarter of 2012, we entered into four separate interest rate swap agreements to fix interest rates on $25,000 of long-term debt for the periods January 2013 to January 2017. In the third quarter of 2016, we entered into three additional forward-starting interest rate swap agreements to fix interest rates on $50,000 of long-term debt for the periods August 2017 to August 2020. The difference to be paid or received under the terms of the swap agreements is recognized as an adjustment to interest expense for the related revolving credit facility when settled.

These swaps are treated as cash flow hedges and consequently, the changes in fair value were recorded in Other comprehensive earnings. Interest rate swaps activity recorded in other comprehensive earnings before tax included the following:



	Years Ended December 31,
	2016		2015			2014
Unrealized gain (loss)	$	593	$	(516	)	$	(510	)
Realized gain reclassified to interest expense	$	928	$	768		$	488

Interest rate swaps included on the balance sheets are comprised of the following:



	As of December 31,
	2016		2015
Other current assets	$	2	$	—
Other assets	$	751	$	—
Accrued expenses and other liabilities	$	—	$	791
Other long-term obligations	$	—	$	(23	)