Fair value measurements (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Measurements

Schedule of assets and liabilities that are measured at fair value on a recurring basis

The following table presents our assets and liabilities measured at fair value on a recurring basis and the levels of inputs used to measure fair value, which include derivatives designated as cash flow hedging instruments, as well as their location on our accompanying condensed consolidated balance sheets as of June 30, 2019 and December 31, 2018 (amounts in thousands):

		Estimated Fair Value
		June 30, 2019
Category	Balance Sheet Location	Level 1	Level 2		Level 3	Total
Cash flow hedges:
Interest rate swap	Other long-term liabilities	—	$	769	—	$	769

		Estimated Fair Value
		December 31, 2018
Category	Balance Sheet Location	Level 1	Level 2		Level 3	Total
Cash flow hedges:
Interest rate swap	Other assets	—	$	1,619	—	$	1,619