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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Stock-Based Compensation [Abstract]

Schedule Of Stock-Based Compensation Expense


	Year Ended December 31,
(in thousands)	2016			2015			2014
Stock-based compensation expense	$	31,295		$	34,733		$	32,793



Schedule Of Shares And Units Of Restricted Common Stock


		Year Ended December 31,
		2016						2015						2014
(in thousands, except per share amounts)		Number of Shares/Units		Weighted Average Grant Date Fair Value				Number of Shares/Units		Weighted Average Grant Date Fair Value				Number of Shares/Units		Weighted Average Grant Date Fair Value
Outstanding at beginning of period — unvested		2,942		$	36.55			2,806		$	41.08			2,523		$	41.21
Granted		2,516		$	11.57			1,438		$	16.12			1,031		$	49.46
Cancelled		(526)		$	38.64			(672)		$	46.20			(85)		$	39.52
Vested		(1,151)		$	40.99			(630)		$	23.89			(663)		$	12.59
Outstanding at end of period — unvested		3,781		$	36.34			2,942		$	36.55			2,806		$	41.08



Schedule Of Weighted-Average Fair Value Assumptions


	Year Ended December 31,
	2016			2015			2014
Stock option assumptions:
Weighted-average fair value	$	7.80		$	—		$	—
Expected volatility		60.0%			—			—
Risk-free interest rate		0.76%-1.46			—			—
Expected dividend yield		0%			—			—
Derived term in years		3-4			—			—



Schedule Of Stock Option Activity


		Year Ended December 31, 2016
(in thousands, except per share amounts)		Number of Shares		Weighted Average Exercise				Weighted Average Remaining Term (in years)
Stock option activity:
Outstanding at beginning of period		—		$	—
Granted		2,260			13.92
Exercised		—			—
Forfeited and expired		—			—
Outstanding at end of period		2,260		$	13.92			9.5
Exercisable at end of period		—		$	—			—



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Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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