Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended						12 Months Ended
	Mar. 31, 2015	Feb. 28, 2015	Mar. 31, 2014	Feb. 28, 2014	Jan. 31, 2014	Mar. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Common stock, shares authorized							80,000,000	80,000,000
Common stock, par value							$ 0.01	$ 0.01
Issued common stock for the exercise of stock options							103,750	107,250
Restricted stock granted				283,223			888,104
Percentage of target number of shares					106.00%
Treasury shares acquired, total price							$ 5,742	$ 12,733	$ 3,605
Preferred stock, shares authorized							5,000,000	5,000,000
Preferred stock, par value							$ 0.01	$ 0.01
Preferred stock, shares issued							0	0
Preferred stock, shares outstanding							0	0
Net Share Settlements
Class of Stock [Line Items]
Treasury shares acquired, shares							230,048	254,604
Three-Year Period
Class of Stock [Line Items]
Restricted shares of common stock granted	888,104		414,900			432,400
Restricted shares of common stock vesting period, (in years)							3 years
Restricted stock granted		122,915
Percentage of target number of shares		42.90%
Four-Year Period
Class of Stock [Line Items]
Restricted shares of common stock granted			294,909			262,000
Restricted shares of common stock vesting period, (in years)							4 years
Share Repurchase Program
Class of Stock [Line Items]
Repurchase of basic share of common stock								$ 50,000
Common stock repurchase, average cost per share							$ 4.90
Additional repurchase of Basic's shares of common stock							$ 9,500
Treasury shares acquired, shares							913,600
Treasury shares acquired, total price							$ 4,500