|
Segment Information (Details) (Revenue [Member])
|
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
|
| Segment Reporting Information [Line Items] | ||
| Total consolidated revenue | 100.00% | 100.00% |
|
United States [Member]
|
||
| Segment Reporting Information [Line Items] | ||
| Total consolidated revenue | 71.00% | 75.30% |
|
Canada [Member]
|
||
| Segment Reporting Information [Line Items] | ||
| Total consolidated revenue | 6.70% | 6.50% |
|
U.K. [Member]
|
||
| Segment Reporting Information [Line Items] | ||
| Total consolidated revenue | 18.80% | 16.70% |
|
Other foreign markets [Member]
|
||
| Segment Reporting Information [Line Items] | ||
| Total consolidated revenue | 3.50% | 1.50% |