Other balance sheet items

Trade and other receivables, net

The following summarizes the balances of trade and other receivables, net as of September 30, 2018 and December 31, 2017 ($ in thousands):



	As of September 30,			As of December 31,
	2018			2017
Gross trade and other receivables	$	37,426		$	52,312
Allowance for doubtful accounts	(692		)	(785		)
Total trade and other receivables, net	$	36,734		$	51,527

We have not experienced any significant write-offs to our accounts receivable.

Prepayments and other assets

The following summarizes the balances of prepayments and other assets as of September 30, 2018 and December 31, 2017 ($ in thousands):



	As of September 30,		As of December 31,
	2018		2017
Advances to suppliers	$	12,590	$	6,509
Prepaid income taxes	10,042		10,935
Prepaid other taxes ⁽¹⁾	11,552		10,737
Contract deposit ⁽²⁾	2,700		2,700
Other assets	1,858		3,185
Total prepayments and other assets	$	38,742	$	34,066

________


⁽¹⁾	Includes recoverable value-added tax and general consumption tax accumulated by our Mexico and Jamaica entities, respectively.

⁽²⁾ Represents a cash deposit related to the Sanctuary Cap Cana management contract. We are in the process of negotiating final terms for the purchase of a 30% interest in the resort in the second half of 2018, and the deposit will be used towards this purchase if we are able to agree on terms. If the purchase is not completed, this amount, together with an additional $0.8 million due, will be treated as key money.

Goodwill

The gross carrying values and accumulated impairment losses of goodwill by reportable segment (refer to discussion of our reportable segments in Note 19) as of September 30, 2018 and December 31, 2017 are as follows ($ in thousands):



	Yucatán Peninsula		Pacific Coast		Dominican Republic		Jamaica		Total
Gross carrying value as of December 31, 2017	$	51,731	$	—	$	—	$	—	$	51,731
Accumulated impairment losses	—		—		—		—		—
Net carrying value as of December 31, 2017	51,731		—		—		—		51,731

Additions (see Note 4)	—		—		—		23,056		23,056

Gross carrying value as of September 30, 2018	51,731		—		—		23,056		74,787
Accumulated impairment losses	—		—		—		—		—
Net carrying value as of September 30, 2018	$	51,731	$	—	$	—	$	23,056	$	74,787

Other intangible assets

Other intangible assets as of September 30, 2018 and December 31, 2017 consisted of the following ($ in thousands):



	As of September 30,			As of December 31,
	2018			2017
Gross carrying value:
Strategic alliance	$	—		$	3,616
Enterprise resource planning system⁽¹⁾	1,405			—
Management contract ⁽²⁾	1,900			—
Licenses ⁽³⁾	858			981
Other	2,568			3,298
Gross carrying value	6,731			7,895

Accumulated amortization:
Strategic alliance	—			(3,616		)
Enterprise resource planning system⁽¹⁾	(27		)	—
Management contract ⁽²⁾	(24		)	—
Other	(1,678		)	(2,192		)
Accumulated amortization	(1,729		)	(5,808		)

Net carrying value:
Strategic alliance	—			—
Enterprise resource planning system⁽¹⁾	1,378			—
Management contract ⁽²⁾	1,876			—
Licenses ⁽³⁾	858			981
Other	890			1,106
Net carrying value	$	5,002		$	2,087

________

⁽¹⁾Represents software development costs incurred to develop and implement SAP as our integrated enterprise resource planning (“ERP”) system. $1.1 million of these costs were placed into service in July 2018 and are being amortized over a weighted-average amortization period of 7 years.

⁽²⁾ Represents the fair value of a management contract acquired in the business combination with the Sagicor Parties (see Note 4).

⁽³⁾ Our licenses have indefinite lives. Accordingly, there is no associated amortization expense or accumulated amortization. As of September 30, 2018 and December 31, 2017, such indefinite lived assets totaled $0.9 million and $1.0 million, respectively.

Amortization expense for intangible assets was $0.9 million and $0.7 million for the nine months ended September 30, 2018 and 2017, respectively. Amortization expense for intangible assets was $0.3 million and $0.2 million for the three months ended September 30, 2018 and 2017, respectively.

Trade and other payables

The following summarizes the balances of trade and other payables as of September 30, 2018 and December 31, 2017 ($ in thousands):



	As of September 30,		As of December 31,
	2018		2017
Trade payables	$	21,436	$	18,160
Advance deposits	39,447		43,884
Withholding and other taxes payable	44,781		34,904
Interest payable	420		5,586
Payroll and related accruals	15,525		13,848
Accrued expenses and other payables	19,721		23,146
Total trade and other payables	$	141,330	$	139,528

Other liabilities

The following summarizes the balances of other liabilities as of September 30, 2018 and December 31, 2017 ($ in thousands):



	As of September 30,		As of December 31,
	2018		2017
Tax contingencies	$	2,347	$	2,310
Pension obligations	5,368		4,456
Cap Cana land purchase obligation	10,625		10,625
Unfavorable ground lease liability⁽¹⁾	2,322		—
Other	1,811		2,003
Total other liabilities	$	22,473	$	19,394

________


⁽¹⁾	Represents an unfavorable ground lease intangible acquired in the business combination with the Sagicor Parties (see Note 4). Amortization is recorded in non-package revenue in the Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income.