Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis as of March 31, 2016 and December 31, 2015 were as follows:

($ in thousands)			Fair Value Measurements at Reporting Date Using
Description	Balance as of       March 31, 2016		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash equivalents	$	106,033	$	106,033	$	—	$	—

($ in thousands)			Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2015		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash equivalents	$	137,405	$	137,405	$	—	$	—