Debt (Tables)

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Schedule of Debt

Total debt consists of the following:

	June 30, 2017			December 31, 2016
				(Restated)
Convertible Senior Notes	$	230,000		$	230,000
Credit Agreement	897,750			29,000
Total debt, principal amount	1,127,750			259,000
Debt issuance costs	(23,709		)	(3,709		)
Total debt, carrying value	$	1,104,041		$	255,291
Total short term debt, carrying value	$	877,043		$	29,000
Total long-term debt, carrying value	$	226,998		$	226,291

Schedule of Long-term Debt Instruments

Interest expense for the Company’s 2019 Notes related to the contractual interest coupon and contingent interest liability is noted below.

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
			(Restated)				(Restated)
Contractual interest expense	$	432	$	432	$	863	$	863
Contingent interest expense	—		—		288		—

The Convertible Senior Notes consisted of the following:

	June 30, 2017						December 31, 2016 (Restated)
	Principal Amount		Unamortized Debt Issuance Costs		Net Carrying Value		Principal Amount		Unamortized Debt Issuance Costs		Net Carrying Value
Convertible Senior Notes	$	230,000	$	3,002	$	226,998	$	230,000	$	3,709	$	226,291

The following table summarizes the Company’s interest expense:

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
			(Restated)				(Restated)
Credit Facility
Amortization of debt issuance costs	$	—	22		$	748	$	44
Commitment fee	—		44		25		118
Interest on borrowings	—		392		24		523
2017 Term Facility
Amortization of debt issuance costs	739		—		1,355		—
Interest on borrowings	9,288		—		16,636		—
Revolving Facility
Amortization of debt issuance costs	184		—		338		—
Commitment fee	187		—		334		—
Convertible Senior Notes
Amortization of debt issuance costs	353		353		706		706
Interest on borrowings	432		432		863		863
Additional interest on default	—		—		288		—
Capital leases	243		229		486		458
Other	418		362		658		698
Total	$	11,844	$	1,834	$	22,461	$	3,410

Schedule of Line of Credit Facilities

Interest expense and commitment fees under the Credit Facility and the Amended Credit Facility were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
			(Restated)				(Restated)
Commitment fees	$	187	$	44	$	359	$	118
Interest expense	9,288		392		16,660		523

The 2017 Term Facility consisted of the following:

	June 30, 2017
	Principal Amount		Unamortized Debt Issuance Costs		Net Carrying Value
Short term portion of the 2017 Term Facility	$	897,750	$	20,707	$	877,043