Closing of 2013 Merger and Financing Transaction - Additional Information (Detail)			12 Months Ended
	Sep. 17, 2013 USD ($) shares	Sep. 03, 2013 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares	Dec. 31, 2014 USD ($) $ / shares	Mar. 31, 2014 $ / shares	Dec. 31, 2013 USD ($)	Dec. 06, 2013 $ / shares	Jul. 31, 2013 USD ($)	Dec. 31, 2012 $ / shares
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) | $ / shares			$ 0.001	$ 0.001	$ 0.001		$ 0.001		$ 0.001
Preferred stock, par value (in dollars per share) | $ / shares							$ 0.01
Percentage of common stock required to be held due to lock up			93.00%
Merger agreement, description			The Lock-up and Voting Agreements provide that such persons may sell, transfer or convey (i) up to 50% of their respective Covered Securities during the period commencing on the one-year anniversary of the Closing Date and ending on the eighteen-month anniversary of the Closing Date; and (ii) up to an aggregate of 75% of their respective Covered Securities during the period commencing on the eighteen-month anniversary of the Closing Date and ending on the two-year anniversary of the Closing Date.
Goodwill | $			$ 130,869,000	$ 93,842,000		$ 93,842,000
Intellectual property, net | $			$ 46,898,000	$ 2,241,000
Series B Convertible Preferred Stock [Member]
Business Acquisition [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares		$ 0.01
Preferred stock shares, issued | shares		7,544,704.4
Number of common stock shares issuable for preferred stock | shares		2
Share price | $ / shares		$ 4.00
Shares issued and sold, other | shares	25,000
Gross proceeds from Securities Purchase Agreement | $	$ 100,000
Ending on Eighteen Month Anniversary [Member]
Business Acquisition [Line Items]
Percentage of covered securities			50.00%
Ending on Two Year Anniversary [Member]
Business Acquisition [Line Items]
Percentage of covered securities			75.00%
Safe Stitch Medical Inc [Member]
Business Acquisition [Line Items]
Exchange ratio		1.1533
Common stock, par value (in dollars per share) | $ / shares		$ 0.001
Business acquisition, share price | $ / shares		$ 1.08
Shares issued as Merger consideration | shares		21,109,949
Cash consideration | $		$ 293,000
Goodwill | $		93,842,000	$ 93,800,000
Intellectual property, net | $		$ 10,000
Amortization period		5 years
Safe Stitch Medical Inc [Member] | Bridge Notes [Member]
Business Acquisition [Line Items]
Issuance of promissory note as part of merger transaction | $								$ 2,000,000
Stated interest per annum								8.00%
Private Placement [Member] | Series B Convertible Preferred Stock [Member]
Business Acquisition [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares		$ 0.001