Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

Carrying Values of Our Cash and Cash Equivalents, Marketable Securities, Other Securities and Common Stock Warrants, Carried at Fair Value

The carrying values of our cash and cash equivalents, marketable securities, other securities and common stock warrants, carried at fair value as of June 30, 2013 are classified in the table below in one of the three categories of the fair value hierarchy described below:

	Fair Value Measurements ($ in ‘000’s)
	Level 1		Level 2		Level 3		Total
June 30, 2013
Assets:
Cash and equivalents	$	121,103	$	—	$	—	$	121,103
Bank CDs (including restricted certificate of deposit of $250)		—		252		—		252
Money market currency funds		—		3,060		—		3,060
Cash and equivalents, and marketable securities and investments		121,103		3,312		—		124,415
Deferred compensation investments, including life insurance cash surrender value		—		4,311		—		4,311
Other securities		3,449		—		—		3,449
	$	124,552	$	7,623	$	—	$	132,175
Liabilities:
Deferred executive compensation liability		—		3,206		—		3,206
Deferred development costs		—		—		18,651		18,651
Melphalan license contingent consideration		—		—		4,700		4,700
Contingent value right		—		—		—		—
	$	—	$	3,206	$	23,351	$	26,557

Activity of Level 3 Inputs Measured on Recurring Basis

The following summarizes the activity of Level 3 inputs measured on a recurring basis:

	Fair Value Measurements of 1 Unobservable Inputs (Level 3) ($ in 000’s)
Balance at December 31, 2011	$	—
Transfers in / (out) of Level 3:
Deferred development costs		12,233
Deferred payment contingency		2,287
Contingent right value		—
Balance at December 31, 2012		14,520
Transfers in / (out) of Level 3:
Other long term liabilities		4,700
Deferred development costs		6,418
Deferred payment contingency		(2,287	)
Balance at June 30, 2013	$	23,351