Stock Based Compensation - Additional Information (Detail) (Omnibus Incentive Plan, USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	6 Months Ended
	May 20, 2014	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted to any single participant in any calendar year	50,000
Shares available for issuance under the plan		744,834
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash-based award paid to a single participant in any calendar year	$ 5,000
Aggregate number of common stock for issuance under the plan	750,000
Period of years for which the 750,000 shares can be granted over	5 years
Employee Stock Options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term Period	10 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Unrecognized compensation expense, net		10,480
Unrecognized compensation expense, net, weighted average period		2 years 1 month 6 days
Total fair value of restricted stock vested		5,160
Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Units granted		18,180
Units vested		9,397
Units forfeited		1,570
Total fair value of units outstanding		$ 1,112