Other assets (Tables)

12 Months Ended

Dec. 31, 2019

Other assets include the following:



(In US$ millions)	2019	2018
Intangible asset - Favorable contracts	40.4	85.5
Mobilization revenue receivables	22.3	47.9
Income taxes receivable	19.3	—
Prepaid expenses	14.1	12.1
VAT receivable	10.6	0.3
Deferred mobilization costs	7.5	12.6
Reimbursable amounts due from customers	3.5	2.9
Interest rate swap agreements	—	9.9
Other	1.8	2.0
Total other assets	119.5	173.2

Other assets are presented in our Consolidated Balance Sheet as follows:



(In US$ millions)	2019	2018
Other current assets	119.5	110.6
Other non-current assets	—	62.6
Total other assets	119.5	173.2

Favorable contracts

The gross carrying amounts and accumulated amortization included in 'Other current assets' and 'Other non-current assets' in the Consolidated Balance Sheets were as follows:



	2019					2018
(In US$ millions)	Gross carrying amount	Accumulated amortization		Net carrying amount		Gross carrying amount	Accumulated amortization		Net carrying amount
Intangible assets- Favorable contracts
Balance at beginning of period	357.3	(271.8	)	85.5		357.3	(226.7	)	130.6
Amortization of favorable contracts	—	(45.1	)	(45.1	)	—	(45.1	)	(45.1	)
Balance at end of period	357.3	(316.9	)	40.4		357.3	(271.8	)	85.5

Amortization of favorable contracts

The table below shows the amounts relating to favorable contracts that is expected to be amortized over the next five years:



	Year ended December 31
(In US$ millions)	2020	2021	2022	2023	2024	Total
Amortization of favorable contracts	40.4	—	—	—	—	40.4