XML 36 R25.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Summary of Significant Accounting Policies (Policies) | 9 Months Ended
--- | ---
Sep. 30, 2022
Summary of Significant Accounting Policies |
Cash, Cash Equivalents and Short-term investments | (a) Cash, Cash Equivalents and Short-term investments ​ Cash and cash equivalents consist of cash on hand and highly liquid investments with original maturities of ninety days or less. Cash equivalents consist primarily of money market funds, U.S. Government and Agency Securities and deposit accounts. Cash equivalents are carried on the balance sheet at fair market value. Short-term investments are highly liquid investments with original maturities of greater than 90 days but less than one year from date of purchase and are carried on the balance sheet at fair market value. Our short-term investments consist primarily of U.S. Government and Agency securities and are classified as held-to-maturity based on our positive intent and ability to hold the securities to maturity. Income related to these securities is recorded in interest income in the Consolidated Statements of Operations.

X
- Definition Disclosure of accounting policy for cash and cash equivalents and short term investments, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References No definition available. + Details
Name: | acls_CashAndCashEquivalentsAndShortTermInvestmentsPolicyPolicyTextBlock
Namespace Prefix: | acls_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration