Goodwill, Trade Names, and Other Identifiable Intangible Assets - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Nurse and allied staffing [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Impairment of intangibles			$ 0.2
Physician staffing [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Impairment of intangibles			6.2
Trade Names
Goodwill and Intangible Assets Disclosure [Line Items]
Impairment of intangibles	$ 2.1	$ 10.0	$ 6.4	$ 2.1	$ 10.0	$ 6.4
Trade Names | Physician staffing [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Impairment of intangibles	$ 2.1	$ 10.0