Share-Based Compensation - Additional Information (Detail) (USD $)	1 Months Ended			12 Months Ended			1 Months Ended		1 Months Ended		1 Months Ended		1 Months Ended					0 Months Ended		1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended	0 Months Ended	1 Months Ended		12 Months Ended	1 Months Ended
	Mar. 12, 2013	Sep. 04, 2012	Jun. 23, 2011	Dec. 31, 2013	Jul. 08, 2013	Nov. 16, 2009	Nov. 12, 2013 Chief Executive Officer [Member]	Jun. 23, 2011 Chief Executive Officer [Member]	Sep. 04, 2012 Chief Operating Officer [Member]	Jun. 23, 2011 Chief Operating Officer [Member]	Aug. 08, 2013 Chief Financial Officer [Member]	Jun. 23, 2011 Chief Financial Officer [Member]	Aug. 08, 2013 Chief Financial Officer [Member] October One Two Thousand Fourteen [Member]	Aug. 08, 2013 Chief Financial Officer [Member] October One Two Thousand Fifteen [Member]	Jul. 31, 2013 Vice President and Chief Operating Officer [Member]	Mar. 12, 2013 Vice President and Chief Operating Officer [Member]	Nov. 12, 2013 Chief Administrative Officer [Member]	Jun. 30, 2012 Outstanding Shares [Member]	May 31, 2011 Outstanding Shares [Member]	Jul. 31, 2013 Stock Option [Member]	Dec. 31, 2013 Stock Option [Member] Minimum [Member]	Dec. 31, 2013 Stock Option [Member] Maximum [Member]	Apr. 30, 2013 Restricted Stock [Member]	Dec. 31, 2013 Restricted Stock [Member]	Apr. 30, 2013 Restricted Stock [Member] Chief Executive Officer [Member]	Mar. 28, 2011 Restricted Stock [Member] Chief Operating Officer [Member]	Apr. 30, 2013 Restricted Stock [Member] Chief Operating Officer [Member]	Aug. 23, 2012 Restricted Stock [Member] Chief Operating Officer [Member]	Dec. 31, 2013 Restricted Stock [Member] Chief Operating Officer [Member]	Aug. 08, 2013 Restricted Stock [Member] Chief Financial Officer [Member]	Apr. 30, 2013 Restricted Stock [Member] Chief Administrative Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining shares reserved for issuance				1,947,000		1,800,000
Increase in the shares reserved for grant																			2,400,000
Additional shares reserved for grant																		3,000,000
Non-qualified stock option awards, expiration period																					5 years	10 years
Vested and non-vested stock awards, vesting service period							3 years		2 years		2 years					3 years	3 years			3 years	2 years	3 years		3 years				2 years
Option Granted								300,000		300,000		75,000
Option Exercise Price	$ 4.51	$ 3.51	$ 4.70		$ 7.33		$ 8.01										$ 8.01
Options granted, vesting description			(i) one third on the six (6) month anniversary of the date of grant, (ii) one third on the one (1) year anniversary of the date of grant, and (iii) one third on the two (2) year anniversary of the date of grant.				Both option grants have an exercise price of $8.01 per share, expire on November 12, 2020 and vest over three years as follows one third on the one (1) year anniversary of the date of grant, one third on the two (2) year anniversary of the date of grant and one third on the three (3) year anniversary of the date of grant.								The option has an exercise price of $7.33 per share, expires on July 8, 2018 and vests over three years as follows one third on the one (1) year anniversary of the date of grant, one third on the two (2) year anniversary of the date of grant and one third on the three (3) year anniversary of the date of grant.	The options have an exercise price of $4.51, expire on March 12, 2018 and vest over three years as follows one third on the one (1) year anniversary of the date of grant, one third on the two (2) year anniversary of the date of grant and one third on the three (3) year anniversary of the date of grant	Both option grants have an exercise price of $8.01 per share, expire on November 12, 2020 and vest over three years as follows one third on the one (1) year anniversary of the date of grant, one third on the two (2) year anniversary of the date of grant and one third on the three (3) year anniversary of the date of grant.
Expiration date of option	Mar. 12, 2018	Sep. 04, 2019	Jun. 23, 2018				Nov. 12, 2020								Jul. 08, 2018		Nov. 12, 2020
Option Granted				2,015,000			300,000		500,000						300,000	100,000	200,000
Option expiration two year from grant date									250,000
Option expiration one year from grant date									250,000
Restricted stock awards, shares																													600,000
Price of performance-based restricted common stock											$ 8.55														$ 4.88		$ 4.88	$ 3.37	$ 5.61		$ 4.88
Shares vest on each of the first anniversary of the grant date																										200,000
Shares vest on each of the second anniversary of the grant date																										200,000
Shares vest on each of the third anniversary of the grant date																										200,000
Shares of restricted Common Stock				1,000,000																					500,000		250,000	650,000		150,000	100,000
Percentage on first anniversary of issue date													50.00%															38.50%
Percentage on second anniversary of issue date														50.00%														77.00%
Percentage on third anniversary of issue date																												100.00%
Cumulated stock vests																							Apr. 07, 2014