Stockholders' Equity - Additional Information (Detail)				12 Months Ended
	Jun. 30, 2016 Installment $ / shares shares	Jun. 26, 2015 USD ($) $ / shares shares	Jun. 24, 2015	Dec. 31, 2016 USD ($) Installment $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares	Dec. 31, 2013 USD ($)	Nov. 17, 2016 USD ($)	Nov. 16, 2016 USD ($)	Jun. 30, 2013 shares
Class Of Stock [Line Items]
Common stock repurchased, amount				$ 121,241,000	$ 0	$ 0
Common stock, par value | $ / shares				$ 0.01	$ 0.01
Unregistered common stock, shares issued | shares				267,997,000	266,545,000
Proceeds from sale or issuance of common stock				$ 84,000	$ 103,631,000	$ 1,487,000
Proceeds allocated to warrants							$ 51,200,000
Nant Capital, LLC [Member]
Class Of Stock [Line Items]
Number of warrants issued | shares		1,486,989
Sale of common stock, price per share | $ / shares		$ 13.45
Unregistered common stock, shares issued | shares		7,434,944
Initial exercise price of warrant per share | $ / shares		$ 17.675
Consecutive trading day period			60 days
Proceeds from issuance of common stock		$ 100,000,000
Proceeds from sale or issuance of common stock		98,300,000
Proceeds allocated to warrants		$ 1,700,000
Warrant Issued to Commercial Partner [Member]
Class Of Stock [Line Items]
Number of warrants issued | shares										1,500,000
Number of installments | Installment				4
Number of warrants vesting annually | shares				375,000
Warrant expiration period				2020-06
Warrants amortized into earnings				$ 10,200,000
Warrants vesting period				4 years
Initial exercise price of warrant per share | $ / shares				$ 12.94
1.25% Warrants [Member]
Class Of Stock [Line Items]
Number of warrants issued | shares										20,100,000
Initial exercise price of warrant per share | $ / shares						$ 23.135
Warrants issued				$ 51,200,000	$ 51,200,000
Warrant expiration term				The 1.25% Warrants expire over a period of 70 trading days beginning on October 1, 2020 and are exercisable only upon expiration. Additionally, if the market value per share of our common stock exceeds the strike price of the 1.25% Warrants on any trading day during the 70 trading day measurement period, we will, for each such trading day, be obligated to issue to the counterparties a number of shares equal in value to the product of the amount by which such market value exceeds such strike price and 1/70th of the aggregate number of shares of our common stock underlying the 1.25% Warrants transactions, subject to a share delivery cap.
Warrant expiration period				70 days
Warrant expiration beginning period				Oct. 01, 2020
Customary Anti-Dilution Adjustments [Member] | Warrant Issued to Commercial Partner [Member]
Class Of Stock [Line Items]
Number of installments | Installment	4
Number of warrants vesting annually | shares	750,000
Warrant expiration period	2026-06
Warrants amortized into earnings				$ 11,000,000
Warrants vesting period				4 years
Case 1 [Member] | Customary Anti-Dilution Adjustments [Member] | Warrant Issued to Commercial Partner [Member]
Class Of Stock [Line Items]
Number of warrants issued | shares	900,000
Common stock, par value | $ / shares	$ 0.01
Sale of common stock, price per share | $ / shares	$ 12.47
Case 2 [Member] | Customary Anti-Dilution Adjustments [Member] | Warrant Issued to Commercial Partner [Member]
Class Of Stock [Line Items]
Number of warrants issued | shares	1,000,000
Sale of common stock, price per share | $ / shares	$ 14.34
Case 3 [Member] | Customary Anti-Dilution Adjustments [Member] | Warrant Issued to Commercial Partner [Member]
Class Of Stock [Line Items]
Number of warrants issued | shares	1,100,000
Sale of common stock, price per share | $ / shares	$ 15.59
November 2016 Stock Repurchase Program [Member]
Class Of Stock [Line Items]
Stock repurchase program, authorized amount								$ 200,000,000
Common stock repurchased, shares | shares				2,200,000
Common stock repurchased, amount				$ 24,000,000
November 2015 Stock repurchase program
Class Of Stock [Line Items]
Common stock repurchased, shares | shares				8,100,000
Common stock repurchased, amount				$ 97,000,000
November 2015 Stock repurchase program | Maximum [Member]
Class Of Stock [Line Items]
Stock repurchase program, authorized amount									$ 150,000,000