Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value Disclosures [Abstract]

Assets Measured at Fair Value on a Recurring Basis

Assets Measured at Fair Value on a Recurring Basis

			Fair Value Measurements Using
Description	December 31, 2011		Quoted Prices for Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)	Total (Losses)
	(in thousands)
Cash and cash equivalents	$	46,168	$	46,168	—	—	—

			Fair Value Measurements Using
Description	June 30, 2012		Quoted Prices for Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)	Total (Losses)
	(in thousands)
Cash and cash equivalents	$	40,499	$	40,499	—	—	—

These tables present the carrying value and fair value, by fair value hierarchy, of our financial instruments, excluding cash and cash equivalents at December 31, 2011 and June 30, 2012, respectively (in thousands).

		Fair Value Measurements Using
Description	December 31, 2011	Quoted Prices for Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)	Total (Losses)
Accounts receivable	31,697	—	31,697	—	—
Accounts payable	31,434	—	31,434	—	—
Notes payable	71	—	71	—	—
Contingent consideration due to Ciprico	100	—	100	—	—

		Fair Value Measurements Using
Description	June 30, 2012	Quoted Prices for Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)	Total (Losses)
Accounts receivable	27,085	—	27,085	—	—
Accounts payable	23,045	—	23,045	—	—