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Supplemental Financial Statement Information | 12 Months Ended
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Dec. 31, 2017
Additional Financial Information Disclosure [Abstract] |
Supplemental Financial Statement Information | Supplemental Financial Statement Information Cash and cash equivalents at December 31, 2017 and 2016 were as follows:
(In millions) |  | 2017 |  | 2016
Cash |  | $ | 140.2 |  |  | $ | 164.1 |
Other short-term investments |  | 1.4 |  |  | 65.5 |
Total cash and cash equivalents |  | $ | 141.6 |  |  | $ | 229.6 |
Accounts receivable are presented net of a reserve for doubtful accounts of $5.9 million at December 31, 2017, and $7.3 million at December 31, 2016. During 2017, the Company recognized expense of $0.1 million to increase the reserve for doubtful accounts and wrote off $1.5 million of uncollectible accounts, which decreased the reserve. During 2016, the Company recognized expense of $4.8 million to increase the reserve for doubtful accounts and wrote off $2.0 million of uncollectible accounts, which decreased the reserve. During 2015, the Company recognized expense of $1.1 million to increase the reserve for doubtful accounts and wrote off $1.4 million of uncollectible accounts, which decreased the reserve. Accrued liabilities included salaries, wages and other payroll-related liabilities of $61.6 million and $54.6 million, and accrued interest of $36.2 million and $40.4 million at December 31, 2017 and 2016, respectively. Other income (expense) for the years ended December 31, 2017, 2016, and 2015 was as follows:
(In millions) |  | 2017 |  | 2016 |  | 2015
Rent and royalty income |  | $ | 3.5 |  |  | $ | 1.4 |  |  | $ | 2.0 |
Net gains on property and investments |  | 0.5 |  |  | 1.0 |  |  | — |
Other |  | — |  |  | — |  |  | (0.4 | )
Total other income, net |  | $ | 4.0 |  |  | $ | 2.4 |  |  | $ | 1.6 |

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