Goodwill and Identifiable Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of acquired intangible assets by major class

As of December 31, 2018 and 2017, the Company had the following acquired intangible assets:

	As of December 31, 2018							As of December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Intangible assets subject to amortization:
Staffing databases	$	25,536	$	(10,174	)	$	15,362	$	19,826	$	(7,693	)	$	12,133
Customer relationships	201,759		(75,081		)	126,678		136,759		(60,764		)	75,995
Tradenames and trademarks	112,769		(22,529		)	90,240		61,369		(16,757		)	44,612
Non-compete agreements	2,877		(1,410		)	1,467		1,697		(958		)	739
Acquired technology	8,730		(5,730		)	3,000		8,730		(4,513		)	4,217
	$	351,671	$	(114,924	)	$	236,747	$	228,381	$	(90,685	)	$	137,696
Intangible assets not subject to amortization:
Tradenames and trademarks						$	89,400						$	89,400
						$	326,147						$	227,096

Schedule of estimated amortization expense

Based on the current amount of intangibles subject to amortization, the estimated future amortization expense as of December 31, 2018 is as follows:

	Amount
Year ending December 31, 2019	$	25,943
Year ending December 31, 2020	23,030
Year ending December 31, 2021	21,014
Year ending December 31, 2022	20,756
Year ending December 31, 2023	20,182
Thereafter	125,822
	$	236,747

Schedule of goodwill

The following table summarizes the activity related to the carrying value of goodwill by reportable segment:

	Nurse and Allied Solutions			Locum Tenens Solutions		Other Workforce Solutions		Total
Balance, January 1, 2017	$	104,306		$	19,743	$	217,705	$	341,754
Goodwill adjustment from HSG acquisition	(1,199		)	—		—		(1,199		)
Goodwill adjustment from Peak acquisition	—			—		41		41
Balance, December 31, 2017	103,107			19,743		217,746		340,596
Goodwill from MedPartners acquisition				—		81,113		81,113
Goodwill from PDA and LFT acquisition	—			—		16,797		16,797
Balance, December 31, 2018	$	103,107		$	19,743	$	315,656	$	438,506
Accumulated impairment loss as of December 31, 2017 and 2018	$	154,444		$	53,940	$	6,555	$	214,939