Segment Information - Goodwill (Details) - USD ($)
$ in Thousands |
9 Months Ended |
|
Sep. 30, 2016 |
Dec. 31, 2015 |
| Goodwill [Roll Forward] |
|
|
| Beginning balance |
$ 204,779
|
|
| Ending balance |
342,174
|
|
| Accumulated impairment loss |
214,939
|
$ 214,939
|
| BES [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
90,594
|
|
| HSG [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
8,780
|
|
| Peak [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
37,147
|
|
| OH [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill adjustment for acquisition |
850
|
|
| TFS [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill adjustment for acquisition |
24
|
|
| Nurse and allied solutions [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Beginning balance |
95,309
|
|
| Ending balance |
104,939
|
|
| Accumulated impairment loss |
154,444
|
154,444
|
| Nurse and allied solutions [Member] | BES [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
0
|
|
| Nurse and allied solutions [Member] | HSG [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
8,780
|
|
| Nurse and allied solutions [Member] | Peak [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
0
|
|
| Nurse and allied solutions [Member] | OH [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill adjustment for acquisition |
850
|
|
| Nurse and allied solutions [Member] | TFS [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill adjustment for acquisition |
0
|
|
| Locum tenens solutions [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Beginning balance |
19,743
|
|
| Ending balance |
19,743
|
|
| Accumulated impairment loss |
53,940
|
53,940
|
| Locum tenens solutions [Member] | BES [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
0
|
|
| Locum tenens solutions [Member] | HSG [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
0
|
|
| Locum tenens solutions [Member] | Peak [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
0
|
|
| Locum tenens solutions [Member] | OH [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill adjustment for acquisition |
0
|
|
| Locum tenens solutions [Member] | TFS [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill adjustment for acquisition |
0
|
|
| Other workforce solutions [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Beginning balance |
89,727
|
|
| Ending balance |
217,492
|
|
| Accumulated impairment loss |
6,555
|
$ 6,555
|
| Other workforce solutions [Member] | BES [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
90,594
|
|
| Other workforce solutions [Member] | HSG [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
0
|
|
| Other workforce solutions [Member] | Peak [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill from acquisition |
37,147
|
|
| Other workforce solutions [Member] | OH [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill adjustment for acquisition |
0
|
|
| Other workforce solutions [Member] | TFS [Member] |
|
|
| Goodwill [Roll Forward] |
|
|
| Goodwill adjustment for acquisition |
$ 24
|
|