XML 61 R48.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Goodwill and Intangible Assets (Summary of Intangible Assets) (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2016 USD ($) item | Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Definite-lived intangible assets |  |  |  |
Weighted-Average Life (Years) |  | 12 years | 12 years |
Finite-Lived Intangible Assets, Gross | $ 34,557 | $ 34,557 | $ 30,572 |
Accumulated Amortization | 24,079 | 24,079 | 23,622 |
Finite-Lived Intangible Assets, Net | 10,478 | 10,478 | 6,950 |
Indefinite-lived intangible assets |  |  |  |
Goodwill recognized | 4,321 | 4,321 | 3,726 | $ 4,467
Subtotal, Original Cost | 33,546 | 33,546 | 32,951 |
Subtotal, Net Book Value | 33,546 | 33,546 | 32,951 |
Balance, Original Cost | 68,103 | 68,103 | 63,523 |
Balance, Net Book Value | $ 44,024 | 44,024 | 39,901 |
Number of Injectable Products Acquired | item | 14 |  |  |
Number of Different Injectable Chemical Entities | item | 11 |  |  |
Payment to Acquire Business, Gross | $ 4,000 | 4,761 |  |
Finished Pharmaceutical Products |  |  |  |
Indefinite-lived intangible assets |  |  |  |
Goodwill recognized | 4,321 | 4,321 |  |
API |  |  |  |
Indefinite-lived intangible assets |  |  |  |
Goodwill recognized |  |  | 3,726 |
Trademarks |  |  |  |
Indefinite-lived intangible assets |  |  |  |
Indefinite-lived intangible assets | 29,225 | $ 29,225 | $ 29,225 |
Product rights |  |  |  |
Definite-lived intangible assets |  |  |  |
Weighted-Average Life (Years) |  | 12 years | 12 years |
Finite-Lived Intangible Assets, Gross | 27,134 | $ 27,134 | $ 27,134 |
Accumulated Amortization | 23,124 | 23,124 | 22,679 |
Finite-Lived Intangible Assets, Net | 4,010 | $ 4,010 | $ 4,455 |
Patents |  |  |  |
Definite-lived intangible assets |  |  |  |
Weighted-Average Life (Years) |  | 10 years | 10 years |
Finite-Lived Intangible Assets, Gross | 293 | $ 293 | $ 293 |
Accumulated Amortization | 115 | 115 | 107 |
Finite-Lived Intangible Assets, Net | 178 | $ 178 | $ 186 |
Trademarks |  |  |  |
Definite-lived intangible assets |  |  |  |
Weighted-Average Life (Years) |  | 11 years | 11 years |
Finite-Lived Intangible Assets, Gross | 15 | $ 15 | $ 15 |
Accumulated Amortization | 15 | $ 15 | $ 15 |
Land-use rights |  |  |  |
Definite-lived intangible assets |  |  |  |
Weighted-Average Life (Years) |  | 39 years | 39 years |
Finite-Lived Intangible Assets, Gross | 2,540 | $ 2,540 | $ 2,540 |
Accumulated Amortization | 304 | 304 | 288 |
Finite-Lived Intangible Assets, Net | 2,236 | 2,236 | $ 2,252 |
Acquired ANDAs |  |  |  |
Definite-lived intangible assets |  |  |  |
Finite-Lived Intangible Assets, Gross | 4,000 | 4,000 |  |
Finite-Lived Intangible Assets, Net | 4,000 | $ 4,000 |  |
Other intangible assets |  |  |  |
Definite-lived intangible assets |  |  |  |
Weighted-Average Life (Years) |  | 1 year | 1 year |
Finite-Lived Intangible Assets, Gross | 575 | $ 575 | $ 590 |
Accumulated Amortization | 521 | 521 | 533 |
Finite-Lived Intangible Assets, Net | $ 54 | $ 54 | $ 57 |

X
- Definition Gross amount of indefinite-lived intangible assets and goodwill. + References No definition available. + Details
Name: | amph_IndefiniteLivedIntangibleAssetsIncludingGoodwillGross
Namespace Prefix: | amph_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount of indefinite-lived intangible assets and goodwill. + References No definition available. + Details
Name: | amph_IndefiniteLivedIntangibleAssetsIncludingGoodwillNet
Namespace Prefix: | amph_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before accumulated amortization of intangible assets, including goodwill. + References No definition available. + Details
Name: | amph_IntangibleAssetsGrossIncludingGoodwill
Namespace Prefix: | amph_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the number of different injectable chemical entities. + References No definition available. + Details
Name: | amph_NumberOfDifferentInjectableChemicalEntities
Namespace Prefix: | amph_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of injectables acquired during the period. + References No definition available. + Details
Name: | amph_NumberOfInjectableProductsAcquired
Namespace Prefix: | amph_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance. + References No definition available. + Details
Name: | us-gaap_IntangibleAssetsNetIncludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=amph_FinishedPharmaceuticalProductsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=amph_ActivePharmaceuticalIngredientSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_ContractualRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_UseRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=amph_AndaAcquisitionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OtherIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |