Regulation S-X Rule 5-02.17 covers other assets. It requires any single item not properly classed in a preceding asset caption to be stated separately, on the balance sheet or in a note, if it exceeds 5 percent of total assets, and asks companies to explain significant additions and deletions. For significant deferred charges, the company must also disclose its policy for deferring and amortizing them. In XBRL filings the balance-sheet line is usually tagged OtherAssetsNoncurrent. Companies that break it down in a footnote tag the leftover, unidentified portion as OtherAssetsMiscellaneousNoncurrent.
Data providers draw the line between other and miscellaneous long-term assets differently. Here, other long-term assets is the broader grouping of noncurrent assets outside the main captions, and miscellaneous long-term assets is the residual within it once identifiable items are separated. The footnote on other assets, when a company provides one, is the only reliable way to see what the balance contains.
Analysts give the line attention when it is large or growing. Some items are genuinely valuable, such as a pension surplus or a long-term investment reported here for convenience. Others, like capitalized contract costs and deferred charges, are costs the company has chosen to spread over future periods; rapid growth in them can flatter current earnings. When measuring tangible or liquidation value, analysts often exclude much of this balance, since many of the items cannot be sold separately.