Quarterly report pursuant to Section 13 or 15(d)

Stock Based and Deferred Compensation (Details 1)

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Stock Based and Deferred Compensation (Details 1) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Summary of stock based compensation agreements    
Unrecognized stock-based compensation cost $ 25,868 $ 20,577
Weighted average years expense recognition period 2 years 8 months 5 days 2 years 1 month 10 days
Total equity awards outstanding [1] 1,137,554 1,255,714
[1] Includes options outstanding and unvested restricted stock and performance-based awards and restricted stock units.