Cash outflow for payments related to contingent consideration liability and other financing activities.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

+ Details

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Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Fair Value Disclosures - Carrying and Fair Value (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Feb. 16, 2016	Jun. 23, 2015	Jun. 30, 2014	Jul. 31, 2012	Feb. 04, 2011
Fair Value Disclosures
Contingent consideration (earn-out)	$ 2,400,000	$ 7,083,000
Payment of the earn-out	4,433,000	1,329,000	$ 220,000
Decrease in fair value of contingent consideration	422,000	116,000
Earn-out
Fair Value Disclosures
Payment of the earn-out	4,300,000
Decrease in fair value of contingent consideration	400,000
Carrying Amount \| Earn-out
Fair Value Disclosures
Contingent consideration (earn-out)	2,400,000	7,083,000
Carrying Amount \| 7.50% Senior Convertible Notes due 2016
Fair Value Disclosures
Debt		46,793,000
Carrying Amount \| 8.5% Senior Notes Due 2019
Fair Value Disclosures
Debt	196,782,000	195,495,000
Unamortized deferred financing costs and debt discounts	3,200,000
Carrying Amount \| 6.00% Senior Convertible Notes Due 2020
Fair Value Disclosures
Debt	78,878.00	78,558.00
Unamortized deferred financing costs and debt discounts	1,100,000
Fair Value \| Level 2 \| 7.50% Senior Convertible Notes due 2016
Fair Value Disclosures
Debt		45,389,000
Fair Value \| Level 2 \| 8.5% Senior Notes Due 2019
Fair Value Disclosures
Debt	206,500,000	199,000,000
Fair Value \| Level 2 \| 6.00% Senior Convertible Notes Due 2020
Fair Value Disclosures
Debt	84,984.00	75,368.00
Fair Value \| Level 3 \| Earn-out
Fair Value Disclosures
Contingent consideration (earn-out)	$ 2,400,000	$ 7,083,000
Senior Notes \| 7.50% Senior Convertible Notes due 2016
Fair Value Disclosures
Stated interest rate (percent)	7.50%			7.50%	7.50%		7.50%	7.50%
Senior Notes \| 8.5% Senior Notes Due 2019
Fair Value Disclosures
Stated interest rate (percent)	8.50%					8.50%
Senior Notes \| 6.00% Senior Convertible Notes Due 2020
Fair Value Disclosures
Stated interest rate (percent)	6.00%				6.00%