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Facility Financing Agreement - Additional Information (Detail) (USD $)	277 Months Ended	0 Months Ended										0 Months Ended			0 Months Ended		0 Months Ended		1 Months Ended	3 Months Ended
	Mar. 31, 2014	Feb. 28, 2014 Tranche B notes	Mar. 31, 2014 Tranche B notes	Mar. 31, 2014 Senior convertible notes due December 31, 2019	Dec. 31, 2013 Senior convertible notes due December 31, 2019	Jul. 01, 2013 Senior convertible notes due December 31, 2019	Mar. 31, 2014 Senior convertible notes due December 31, 2019 Fourth Tranche	Mar. 31, 2014 Senior convertible notes due December 31, 2019 Tranche B notes Maximum	Mar. 31, 2014 Deerfield Senior convertible notes due December 31, 2019	Feb. 28, 2014 Deerfield Senior convertible notes due December 31, 2019	Feb. 28, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche B notes	Feb. 28, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche B notes Scenario 1	Feb. 28, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche B notes Scenario 2	Feb. 28, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche B notes If the Company enters into a collaboration with a third party to commercialize AFFREZZA	Jun. 30, 2013 Deerfield Senior convertible notes due December 31, 2019 Notes Issued in Four Equal Tranches Tranche	Mar. 31, 2014 Deerfield Senior convertible notes due December 31, 2019 Notes Issued in Four Equal Tranches	Feb. 28, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche B notes Scenario 1	Feb. 28, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche B notes Scenario 2	Jan. 31, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche Two	Mar. 31, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche Two	Mar. 31, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche One and Tranche Three Minimum	Mar. 31, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche Three	Mar. 31, 2014 Deerfield Senior convertible notes due December 31, 2019 Tranche One
Debt Instrument [Line Items]
Amount of common shares issued upon conversion				$ 120,000,000								$ 90,000,000	$ 20,000,000		$ 160,000,000	$ 120,000,000	$ 90,000,000	$ 20,000,000
Number of equal tranches															4
Debt facility periodic principal amount															40,000,000
Debt facility carrying amount				25,900,000	102,300,000				40,000,000							40,000,000
Senior notes, effective interest rate											9.75%			8.75%	9.75%
Percentage of principal amount converted in to common stock												150.00%	33.33%				150.00%	33.33%
Repayment as a percentage of original principal amount											25.00%
Debt instrument maturity date		Dec. 31, 2019
Aggregate principal amount of convertible notes										60,000,000
Common shares issuable upon conversion										12,000,000
Conversion price of shares										$ 5.00
Commitment asset at fair value			2,921,000			2,900,000	40,000,000	90,000,000
Amount of common shares issued upon conversion	3,331,000																		33,500,000	6,500,000	60,000,000	40,000,000	12,500,000
Common shares issued upon conversion																			6,559,251	1,293,224		7,121,120	2,142,709
Loss on debt conversion																				600,000
Debt extinguishment costs																				$ 3,000,000		$ 3,000,000

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