Common Stock (Reconciliation of Common Shares Issued and Additional Disclosures) (Details)			12 Months Ended
	Dec. 31, 2014 $ / shares shares	Feb. 07, 2014 shares	Dec. 31, 2015 series $ / shares shares	Dec. 31, 2014 $ / shares shares	Dec. 31, 2013 shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Common stock, shares authorized	80,000,000		80,000,000	80,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001		$ 0.0001	$ 0.0001
Preferred stock. shares authorized	100,000		100,000	100,000
Preferred stock, minimum number of series authorized | series			1
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.0001		$ 0.0001	$ 0.0001
Reconciliation of Changes in Common Shares Issued
Shares issued at the beginning of the year			54,633,726	58,265,911
Issued in acquisitions			60,024	99,681
Issued in payment of accrued liability			0	27,101
Issued upon exercise of warrants		1,277,250	0	1,277,250	267,000
Issued as restricted stock award grants			758,904	525,120
Issued upon exercise of stock options			767,560	311,954
Retirement of treasury shares	(5,873,291)		0	(5,873,291)
Shares issued at the end of the year	54,633,726		56,220,214	54,633,726	58,265,911