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Debt Instrument Date Of Last Required Payment

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Line Of Credit Facility Restricted Borrowing Capacity

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Principal amount per share.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Description of debt redemption features under terms of the debt agreement.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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Amount of long-term debt classified as other, payable after one year or the operating cycle, if longer.

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The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

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Borrowings - Additional Information (Detail)		3 Months Ended		12 Months Ended
Borrowings - Additional Information (Detail)	Aug. 10, 2015 d $ / shares	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2014 USD ($) shares	Dec. 31, 2016 USD ($)	Jul. 28, 2015 USD ($)	Jul. 01, 2013 USD ($)
Debt Instrument [Line Items]
Facility Agreement, total principle payment in 2017		$ 20,000,000
Facility Agreement, total principle payment in 2018		20,000,000
Facility Agreement, total principle payment in 2019		35,000,000
Other liabilities		117,600,000			$ 123,200,000
Milestone Rights Liability
Debt Instrument [Line Items]
Other liabilities		18,900,000			18,400,000
Less portion of commitment asset
Debt Instrument [Line Items]
Cash repayment of senior notes under exchange agreement		4,000,000
Conversion of debt		$ 1,000,000
Deerfield
Debt Instrument [Line Items]
Principal repayment schedule, start date		Jul. 01, 2016
Principal repayment schedule, end date		Dec. 09, 2019
Conversion Option, value				$ 93,500,000
Conversion Option, shares \| shares				3,464,616
Amortization of notes premium		$ 447,000	$ 419,000
Deerfield \| Milestone Rights Liability
Debt Instrument [Line Items]
Long term liability		8,900,000
Deerfield \| Milestone Rights Liability \| Maximum
Debt Instrument [Line Items]
Contingent liability for milestone payments		90,000,000					$ 90,000,000
Deerfield \| Tranche 1 Notes
Debt Instrument [Line Items]
Conversion Option, value				$ 20,000,000
Deerfield \| Tranche 2 note
Debt Instrument [Line Items]
Conversion Option, value				33,500,000
Deerfield \| Tranche 3 note
Debt Instrument [Line Items]
Conversion Option, value				$ 40,000,000
Senior convertible notes due December 31, 2019
Debt Instrument [Line Items]
Debt facility principal amount		75,000,000			75,000,000
Conversion of debt		5,000,000
Carrying value		71,795,000			71,339,000
Senior convertible notes due December 31, 2019 \| Deerfield
Debt Instrument [Line Items]
Debt facility principal amount		$ 55,000,000
Senior notes, effective interest rate		9.75%
Accrued expenses		$ 1,600,000
Other current liabilities		1,600,000
Other liabilities		8,900,000
Senior convertible notes due December 31, 2019 \| Deerfield \| Milestone Rights Liability
Debt Instrument [Line Items]
Long term liability		7,300,000			8,900,000
Senior convertible notes due December 31, 2019 \| Deerfield \| Milestone Rights Liability \| Danbury Facility
Debt Instrument [Line Items]
Carrying value		28,500,000
Senior convertible notes due December 31, 2019 \| Deerfield \| Less portion of commitment asset
Debt Instrument [Line Items]
Debt facility principal amount		$ 20,000,000
Senior notes, effective interest rate		8.75%
Senior convertible notes due December 31, 2019 \| Deerfield \| Less portion of commitment asset \| Minimum
Debt Instrument [Line Items]
Available amount of credit facility under covenant restrictions		$ 25,000,000
Senior convertible notes due December 31, 2019 \| Deerfield \| Less portion of commitment asset \| Minimum \| Facility Agreement
Debt Instrument [Line Items]
Available amount of credit facility under covenant restrictions		25,000,000
5.75% Senior convertible notes due August 15, 2018
Debt Instrument [Line Items]
Debt facility principal amount		27,690,000			27,690,000
Senior notes, effective interest rate	5.75%
Carrying value		$ 27,642,000			$ 27,635,000
No of convertible shares	29
Principal amount per share \| $ / shares	$ 1,000
Conversion price of shares \| $ / shares	$ 34.00
Percentage of repurchase price	100.00%
Debt Instrument, redemption description		On or after the date that is one year following the original issue date of the 2018 notes, the Company will have the right to redeem for cash all or part of the 2018 notes if the last reported sale price of its common stock exceeds 130% of the conversion price then in effect for 20 or more trading days during the 30 consecutive trading day period ending on the trading day immediately prior to the date of the redemption notice. The redemption price will equal the sum of 100% of the principal amount of the 2018 notes to be redeemed, plus accrued and unpaid interest.
Percentage of conversion price equaling stock price	130.00%
Number of trading days \| d	20
Consecutive trading days	30 days
Debt Issuance Cost						$ 800,000
Amortization of notes premium		$ 59,000	57,000
Accretion of debt issuance costs		$ 66,000	$ 62,000