Notes Payable, Collateralized and Short-Term Borrowings (Tables)

6 Months Ended

Jun. 30, 2017

Notes Payable, Collateralized and Short-Term Borrowings

Notes payable, collateralized and short-term borrowings consisted of the following (in thousands):

Total	June 30, 2017		December 31, 2016
8.125% Senior Notes	$	109,334	$	109,271
5.375% Senior Notes		297,573		297,083
8.375% Senior Notes		244,750		246,988
5.125% Senior Notes		296,600		296,215
Collateralized borrowings		42,630		16,210
Short-term borrowings		150,000		—
Total	$	1,140,887	$	965,767

Carrying Amounts and Estimated Fair Values of Company's Senior Notes

The Company’s Senior Notes are recorded at amortized cost. As of June 30s, 2017 and December 31, 2016, the carrying amounts and estimated fair values of the Company’s Senior Notes were as follows (in thousands):

	June 30, 2017				December 31, 2016
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
8.125% Senior Notes	$	109,334	$	115,335	$	109,271	$	115,650
5.375% Senior Notes		297,573		315,750		297,083		312,000
8.375% Senior Notes		244,750		253,800		246,988		256,650
5.125% Senior Notes		296,600		316,125		296,215		309,300
Total	$	948,257	$	1,001,010	$	949,557	$	993,600

Summary of Interest Expense Related to Company's Convertible Notes

Below is a summary of the interest expense related to the Company’s Convertible Notes (in thousands):

	4.50% Convertible Notes				4.50% Convertible Notes
	For the three months ended				For the six months ended
	June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Coupon interest	$	—	$	1,800	$	—	$	3,600
Amortization of discount		—		1,234		—		2,459
Total interest expense	$	—	$	3,034	$	—	$	6,059