Equity Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Equity-Based Compensation [Table Text Block]

Equity-based compensation with respect to (a) ownership units of D&P Acquisitions ("Legacy Units"), (b) options to purchase shares of the Company's Class A common stock granted in connection with the IPO (“IPO Options”) and (c) restricted stock awards and units and performance-vesting restricted stock awards and units issued in connection with the Company's ongoing long-term compensation program (“Ongoing RSAs”) is detailed in the table below:



	Year Ended December 31, 2012
	Legacy Units and IPO Options			Ongoing RSAs		Total
Compensation and benefits^(a)	$	(43	)	$	19,141	$	19,098
Acquisition retention expenses	—			2,908		2,908
Selling, general and administrative	65			3,466		3,531
Total	$	22		$	25,515	$	25,537



	Year Ended December 31, 2011
	Legacy Units and IPO Options			Ongoing RSAs		Total
Compensation and benefits^(a)	$	(273	)	$	17,359	$	17,086
Acquisition retention expenses	—			1,054		1,054
Selling, general and administrative	480			3,264		3,744
Total	$	207		$	21,677	$	21,884



	Year Ended December 31, 2010
	Legacy Units and IPO Options		Ongoing RSAs		Total
Compensation and benefits	$	1,308	$	13,583	$	14,891
Acquisition retention expenses	—		11		11
Selling, general and administrative	2,091		3,451		5,542
Total	$	3,399	$	17,045	$	20,444

Schedule of New Class A Units Attributable to Equity Based Compensation [Table Text Block]

The following table summarizes activity for New Class A Units attributable to equity-based compensation:



	New Class A Units Attributable to Equity-Based Compensation
Balance as of December 31, 2009	3,231
Redeemed or exchanged	(1,666	)
Forfeited	(35	)
Balance as of December 31, 2010	1,530
Redeemed or exchanged	(653	)
Forfeited	(10	)
Balance as of December 31, 2011	867
Redeemed or exchanged	(867	)
Forfeited	—
Balance as of December 31, 2012	—

Schedule of IPO Options [Table Text Block]

The following table summarizes option activity:



	IPO Options			Weighted Average Grant Date Fair Value
Balance as of December 31, 2009	1,815			$	7.33
Exercised	(18		)	7.33
Forfeited	(136		)	7.33
Balance as of December 31, 2010	1,661			7.33
Exercised	(7		)	7.33
Forfeited	(47		)	7.33
Balance as of December 31, 2011	1,607			7.33
Exercised	(1		)	7.33
Forfeited	(82		)	7.33
Balance as of December 31, 2012	1,524			$	7.33

Vested	1,524
Unvested	—

Weighted average exercise price	$	16.00
Weighted average remaining contractual term	4.75 years
Total intrinsic value of exercised options	$	—
Total fair value of vested options	$	11,173
Aggregate intrinsic value of outstanding options	$	—

Schedule of Restricted Stock and Restricted Stock Units [Table Text Block]

The following table summarizes award activity:



	Restricted Stock Awards		Weighted Average Grant Date Fair Value		Restricted Stock Units		Weighted Average Grant Date Fair Value
Balance as of December 31, 2009	2,340		$	14.11	173		$	13.43
Granted	1,772		16.66		154		16.92
Converted to Class A common stock upon lapse of restrictions	(429	)	16.37		—		13.84
Forfeited	(251	)	14.35		(24	)	15.54
Balance as of December 31, 2010	3,432		15.13		303		15.03
Granted	2,020		14.95		254		14.87
Converted to Class A common stock upon lapse of restrictions	(931	)	13.46		(88	)	12.84
Forfeited	(302	)	16.22		(19	)	15.64
Balance as of December 31, 2011	4,219		15.33		450		15.29
Granted	1,388		13.84		192		13.80
Converted to Class A common stock upon lapse of restrictions	(1,029	)	14.29		(69	)	13.84
Forfeited	(248	)	15.34		(12	)	15.74
Balance as of December 31, 2012	4,330		$	15.10	561		$	14.94

Vested	—				—
Unvested	4,330				561

Schedule of Performance Based Restricted Stock Awards and Units [Table Text Block]



	Performance- Based Restricted Stock Awards	Weighted Average Grant Date Fair Value		Performance- Based Restricted Stock Units	Weighted Average Grant Date Fair Value
Balance as of December 31, 2010	—	$	—	—	$	—
Granted	183	7.52		22	7.83
Balance as of December 31, 2011	183	7.52		22	7.83
Granted	213	7.75		24	7.75
Balance as of December 31, 2012	396	$	7.65	46	$	7.79

Vested	—			—
Unvested	396			46