Other Assets and Accrued Liabilities

12 Months Ended

Dec. 31, 2020

Other Liabilities Disclosure [Abstract]

Other Assets and Accrued Liabilities

Other Assets and Accrued Liabilities

Prepaid expenses and other, classified as current assets, included the following:

(in thousands)	December 31, 2020		December 31, 2019
Prepaid maintenance expenses	$	4,018	$	3,065
Broadband contract acquisition and fulfillment costs	4,417		4,898
Interest rate swaps	—		1,382
Other	1,196		1,833
Prepaid expenses and other	$	9,631	$	11,178

Deferred charges and other assets, classified as long-term assets, included the following:

(in thousands)	December 31, 2020		December 31, 2019
Broadband contract acquisition and fulfillment costs	$	10,252	$	6,107
Prepaid expenses and other	1,398		1,908
Interest rate swaps	—		1,252
Deferred charges and other assets	$	11,650	$	9,267

Accrued liabilities and other, classified as current liabilities, included the following:

(in thousands)	December 31, 2020		December 31, 2019
Interest rate swaps	$	4,048	$	—
Accrued programming costs	2,868		3,023
Sales and property taxes payable	1,072		919
Other current liabilities	5,881		3,614
Accrued liabilities and other	$	13,869	$	7,556

Other liabilities, classified as long-term liabilities, included the following:

(in thousands)	December 31, 2020		December 31, 2019
Noncurrent portion of deferred lease revenue	$	18,687	$	12,449
FCC spectrum license obligations	3,845		1,699
Noncurrent portion of financing leases	1,492		1,591
Other	881		1,252
Other liabilities	$	24,905	$	16,991

Asset Retirement Obligations:

Our asset retirement obligations arise from certain of our leases and generally require us to remove our towers from ground leases. Below is a summary:

	Years Ended December 31,
(in thousands)	2020		2019		2018
Balance at beginning of year	$	6,152	$	8,808	$	4,619
Additional liabilities accrued	262		593		1,273
Changes to prior estimates	(1,633)		(3,659)		2,568
Payments	—		—		—
Accretion expense	332		410		348
Balance at end of year	$	5,113	$	6,152	$	8,808