| Component: (Network and Table) | |
|---|---|
| Network | 00500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (http://www.amphastar.com/role/StatementConsolidatedStatementsOfCashFlows)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0001297184 (http://www.sec.gov/CIK) | 
| CONSOLIDATED STATEMENTS OF CASH FLOWS | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31  | 2015-01-01 - 2015-12-31  | 2014-01-01 - 2014-12-31  | |
CONSOLIDATED STATEMENTS OF CASH FLOWS  | |||
Cash Flows From Operating Activities:  | |||
Net income (loss)  | 10,532,000    | (2,787,000)   | (10,699,000)   | 
Reconciliation to net cash provided by operating activities:  | |||
Loss on disposal and impairment of property, plant, and equipment  | |||
Depreciation of property, plant, and equipment  | |||
Amortization of product rights, trademarks, and patents  | |||
Imputed interest accretion  | |||
Share-based compensation  | |||
Reserve for uncertain tax positions  | (  | ||
Changes in deferred taxes  | (  | (  | (  | 
Changes in operating assets and liabilities:  | |||
Accounts receivable, net  | (  | ||
Inventories  | (  | ||
Prepaid expenses and other assets  | (  | (  | |
Income tax refund, deposits, and payable  | (  | ||
Accounts payable and accrued liabilities  | (  | (  | |
Net cash provided by operating activities  | |||
Cash Flows From Investing Activities:  | |||
Business Acquisitions  | (  | (  | |
Purchases and construction of property, plant, and equipment  | (  | (  | (  | 
Proceeds from the sale of property, plant and equipment  | |||
Purchase of short-term investments  | (  | ||
Maturity of short-term investments  | |||
Changes in restricted short-term investments  | (  | (  | |
Payment of deposits and other assets  | (  | (  | (  | 
Net cash used in investing activities  | (  | (  | (  | 
Cash Flows From Financing Activities:  | |||
Net proceeds from equity plans  | |||
Excess tax benefit related to share-based compensation  | (  | ||
Cost related to public offering  | (  | ||
Purchase of treasury stock  | (  | (  | (  | 
Proceeds from borrowing under lines of credit  | |||
Repayments under lines of credit  | (  | ||
Proceeds from issuance of long-term debt  | |||
Principal payments on long-term debt  | (  | (  | (  | 
Principal payments on short-term debt  | (  | ||
Net cash provided by financing activities  | |||
Effect of exchange rate changes on cash  | |||
Net increase (decrease) in cash and cash equivalents  | (  | ||
Cash and cash equivalents at beginning of period  | 66,074,000    | ||
Cash and cash equivalents at end of period  | 72,354,000    | 66,074,000    | 67,828,000    | 
Noncash Investing and Financing Activities:  | |||
Equipment acquired under capital leases  | |||
Supplemental Disclosures of Cash Flow Information:  | |||
Interest paid, net of capitalized interest  | |||
Income taxes paid  | |||