Employee Benefit Plans (Narrative) (Details) - USD ($)	1 Months Ended			5 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2014	Feb. 28, 2014	Jan. 31, 2014	Jun. 03, 2014	Dec. 31, 2014	Jun. 30, 2014	Jun. 30, 2015	Dec. 31, 2013	Dec. 31, 2012
Salary, bonuses and other benefit expenses due to change of control				$ 11,900,000
Accrued bonuses, current				5,500,000
Number of shares converted							836,311
Employee Stock Option [Member]
Compensation expense				$ 8,248,000				$ 3,426,000	$ 2,621,000
Restricted Stock [Member]
Shares issued, accerlerated							471,080
Maximum [Member]
Employee retention, possible percentage of salary and bonuses							299.00%
Minimum [Member]
Employee retention, possible percentage of salary and bonuses							100.00%
2009 Long Term Incentive Plan [Member]
Award term							10 years
2009 Long Term Incentive Plan [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award							term of 10 years and vested ratably on an annual basis over a three-year period from the date of grant
Vesting period							3 years
Weighted-average grant-date fair value of stock options granted				$ 14.57				$ 14.50	$ 8.84
Aggregate instrinsic value of stock options exercised during period				$ 32,600,000				$ 2,100,000	$ 500,000
401(K) Plans [Member]
Description of 401(K) Plan							Through December 31, 2014, we had a 401(k) Plan that covered all employees. We matched 100% of each individual participant's contribution not to exceed 6% of the participant's compensation. Our matching contributions were made in cash.
Maximum percentage of participant's salary matched by the employer							6.00%
Defined contribution plan, employer discretionary contribution amount					$ 200,000	$ 300,000		$ 900,000	$ 800,000
Percentage of each participant's contribution matched by employer							100.00%
2006 Long Term Incentive Plan [Member]
Compensation expense	$ 400,000
2006 Long Term Incentive Plan [Member] | Parent Company [Member]
Restricted stock, granted							349,481
2006 Long Term Incentive Plan [Member] | Restricted Stock [Member]
Restricted stock, granted							32,994
Unvested restricted awards							258,401
2006 Long Term Incentive Plan [Member] | Restricted Stock [Member] | Parent Company [Member]
Vesting period							3 years
Director [Member]
Fair value of stock issued, non-employee		$ 125,000	$ 100,000				$ 100,000
Director [Member] | Restricted Stock [Member]
Restricted stock, granted				12,984				15,305	31,095
Deferred Compensation Arrangement with Individual, Shares Issued							39,009
Director [Member] | 2009 Long Term Incentive Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award							one-half of each stock award vested immediately on the date of grant, and the remaining one-half vested immediately prior to the next annual meeting of stockholders held after the grant date.
Compensation arrangement, description							Pursuant to elections made by two directors applicable to certain of these awards, the receipt of such awards totaling 39,009 shares was deferred until such directors ceased to serve on our Board of Directors. In conjunction with the Merger, each option to purchase shares of Common Stock outstanding immediately prior to the effective date of the Merger under the 2009 LTIP, whether or not then exercisable or vested, was deemed exercised pursuant to a cashless exercise for that number of shares of Common Stock (the "net exercise shares") equal to (i) the number of shares of Common Stock subject to such stock option immediately prior to the effective date minus (ii) the number of whole and partial shares of Common Stock subject to such stock option that, when multiplied by $39.00 per share, was equal to the aggregate exercise price of such stock option. Each net exercise share deemed to be an outstanding share of Common Stock received merger consideration of $39.00 in cash and was not subject to proration like other holders of Common Stock that elected to receive all cash in the Merger. As a result, in accordance with the Merger Agreement, 836,311 net exercise shares were each converted into $39.00 in cash, without proration.
Chief Executive Officer [Member] | 2009 Long Term Incentive Plan [Member] | Employee Stock Option [Member]
Modification of September 30, 2009 employment agreement							Prior to February 2014, the former Compensation Committee approved a compensation program for each of our former non-employee directors which provided for the annual grant of a stock award with a market value of $100,000 (as measured on the date of the grant and prorated from the date of the grant, if applicable). In February 2014, the former Compensation Committee approved an increase in the annual grant of a stock award from a market value of $100,000 to a market value of $125,000 (as measured on the date of the grant and prorated from the date of the grant, if applicable) for each of our former non-employee directors. Pursuant to the terms of the program,
Predecessor Company [Member] | Equity Option [Member]
Business acquisition, per share price of acquiree's share				$ 39.00